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856,616 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
e22a97a2a8 |
AFS Fixes
Reviewed-by: Marc Dionne <marc.dionne@auristor.com> -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEqG5UsNXhtOCrfGQP+7dXa6fLC2sFAl1UELcACgkQ+7dXa6fL C2viWw//eDLvElBjaQsabfpMOVGkf02t+zCzNfKSC0KdM1+GUZ1FyXQ0UAtgwICY Sp01h/RZa0V07sfYP7R5kL4/KIMdODmhrP0iiHDpoMjKCL7qR9tFbJDAcHtH8xz2 52UV2dmdDBI/wdw/i5dn6M02SoYAQMl1XT49SkzhFSELVchkpraGsf1vf4yITeVe eI1TaOxI+TUaeH5f6+KWp6c8K8q70p3KfrR2VmCWkBrD7PNg9lp19pVnz8tdofYu xURHQbJulSqM+mY7pcNBOi2iWy3dCLjBTkVJIwIhZcZqLThACY38SSaPtmdhgif4 wcyyZUtd8EGPzPPqbfCx7ycTIIDtL/r98XtGyiTJBKrCK+flZONdu0g/oIzvJ/Wu hV4+ButxCuMakbLOe+Hew3lhHFOy7m9XZtOURzxzZSm9uazHDMxnw4ocxIOs24F1 qus1sG0+rlVDcMYjo2tKEAzOl/ZejJ/NUTd60ANIWKTHply2/2/5dH94B0yLwDnp tfifBrBkyqFB4XUKGvqvvJczl0d7+zsEScs4VQLVO/WhATjj6jNnrYKgwvBS5pCM 890qUzj3TRW7ciZLi0THMEHBlEfbEWhNCaggAqieIvbKv7t4Kh2cUBaIsxo4IYqU PBZZhFXRul5ocTJrV9pScl4RbzxE5V0j9cwSiiWnzZL1sQucIgQ= =zivP -----END PGP SIGNATURE----- Merge tag 'afs-fixes-20190814' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs Pull afs fixes from David Howells: - Fix the CB.ProbeUuid handler to generate its reply correctly. - Fix a mix up in indices when parsing a Volume Location entry record. - Fix a potential NULL-pointer deref when cleaning up a read request. - Fix the expected data version of the destination directory in afs_rename(). - Fix afs_d_revalidate() to only update d_fsdata if it's not the same as the directory data version to reduce the likelihood of overwriting the result of a competing operation. (d_fsdata carries the directory DV or the least-significant word thereof). - Fix the tracking of the data-version on a directory and make sure that dentry objects get properly initialised, updated and revalidated. Also fix rename to update d_fsdata to match the new directory's DV if the dentry gets moved over and unhash the dentry to stop afs_d_revalidate() from interfering. * tag 'afs-fixes-20190814' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: afs: Fix missing dentry data version updating afs: Only update d_fsdata if different in afs_d_revalidate() afs: Fix off-by-one in afs_rename() expected data version calculation fs: afs: Fix a possible null-pointer dereference in afs_put_read() afs: Fix loop index mixup in afs_deliver_vl_get_entry_by_name_u() afs: Fix the CB.ProbeUuid service handler to reply correctly |
||
|
Linus Torvalds
|
a8dba0531b |
Pull request for 5.3-rc3
- Fix a memory registration release flow issue that was causing a
WARN_ON (mlx5)
- If the counters for a port aren't allocated, then we can't do
operations on the non-existent counters (core)
- Check the right variable for error code result (mlx5)
- Fix a use after free issue (mlx5)
- Fix an off by one memory leak (siw)
- Actually return an error code on error (core)
- Allow siw to be built on 32bit arches (siw, ABI change, but OK since
siw was just merged this merge window and there is no prior released
kernel to maintain compatibility with and we also updated the
rdma-core user space package to match)
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Doug Ledford:
"Fairly small pull request for -rc3. I'm out of town the rest of this
week, so I made sure to clean out as much as possible from patchworks
in enough time for 0-day to chew through it (Yay! for 0-day being back
online! :-)). Jason might send through any emergency stuff that could
pop up, otherwise I'm back next week.
The only real thing of note is the siw ABI change. Since we just
merged siw *this* release, there are no prior kernel releases to
maintain kernel ABI with. I told Bernard that if there is anything
else about the siw ABI he thinks he might want to change before it
goes set in stone, he should get it in ASAP. The siw module was around
for several years outside the kernel tree, and it had to be revamped
considerably for inclusion upstream, so we are making no attempts to
be backward compatible with the out of tree version. Once 5.3 is
actually released, we will have our baseline ABI to maintain.
Summary:
- Fix a memory registration release flow issue that was causing a
WARN_ON (mlx5)
- If the counters for a port aren't allocated, then we can't do
operations on the non-existent counters (core)
- Check the right variable for error code result (mlx5)
- Fix a use after free issue (mlx5)
- Fix an off by one memory leak (siw)
- Actually return an error code on error (core)
- Allow siw to be built on 32bit arches (siw, ABI change, but OK
since siw was just merged this merge window and there is no prior
released kernel to maintain compatibility with and we also updated
the rdma-core user space package to match)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/siw: Change CQ flags from 64->32 bits
RDMA/core: Fix error code in stat_get_doit_qp()
RDMA/siw: Fix a memory leak in siw_init_cpulist()
IB/mlx5: Fix use-after-free error while accessing ev_file pointer
IB/mlx5: Check the correct variable in error handling code
RDMA/counter: Prevent QP counter binding if counters unsupported
IB/mlx5: Fix implicit MR release flow
|
||
|
Linus Torvalds
|
e83b009c5c |
dma-mapping fixes for 5.3-rc
- fix the handling of the bus_dma_mask in dma_get_required_mask, which
caused a regression in this merge window (Lucas Stach)
- fix a regression in the handling of DMA_ATTR_NO_KERNEL_MAPPING (me)
- fix dma_mmap_coherent to not cause page attribute mismatches on
coherent architectures like x86 (me)
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Merge tag 'dma-mapping-5.3-4' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fixes from Christoph Hellwig:
- fix the handling of the bus_dma_mask in dma_get_required_mask, which
caused a regression in this merge window (Lucas Stach)
- fix a regression in the handling of DMA_ATTR_NO_KERNEL_MAPPING (me)
- fix dma_mmap_coherent to not cause page attribute mismatches on
coherent architectures like x86 (me)
* tag 'dma-mapping-5.3-4' of git://git.infradead.org/users/hch/dma-mapping:
dma-mapping: fix page attributes for dma_mmap_*
dma-direct: don't truncate dma_required_mask to bus addressing capabilities
dma-direct: fix DMA_ATTR_NO_KERNEL_MAPPING
|
||
|
Linus Torvalds
|
b5e33e44d9 |
IOMMU Fixes for Linux v5.3-rc4
Including: - A couple more fixes for the Intel VT-d driver for bugs introduced during the recent conversion of this driver to use IOMMU core default domains. - Fix for common dma-iommu code to make sure MSI mappings happen in the correct domain for a device. - Fix a corner case in the handling of sg-lists in dma-iommu code that might cause dma_length to be truncated. - Mark a switch as fall-through in arm-smmu code. -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEr9jSbILcajRFYWYyK/BELZcBGuMFAl1UFQIACgkQK/BELZcB GuNW1A//Y86ZFRSVCA/+ZiHgADwqsof1/Cdc1Ou1tXMbINbyWvWyT5t8JtplYsEJ 17xlS7l2M9x1VCljzr3fTfBMGu8+CQY2KT6YJliLQZzrQ6LKoxmscCmg6DmH4Gjy CfoRLBXCKTm1F8aNt7f/XupuI+OGpq8h/VPDxYqZZIGKxsMfOH8ZIzF7DjDO2MxS NROjwAyVMZdzR5X/dM1dYK0zwxQvgRGEx8gdGssoyUCJvGdAyQXym30j8esNWJ6J okXVpuQoX/CJQLZP/xF8psWcL+0IJSyd3G90ToBRsoLDc50a4qTdelGvGkVHmU8L WVm+x7GjJrWZieqUtFnW/X7p4qSZdNMIK9c/+/cKg+BxyAKE9FqUJzg6UaSpzTbk XVh0jSiSq7/txU8pyGhEDQxgg4xbIUA5x1gqnqFm8k9Noz1/+AhfdyEUFzIHeE0s XwBfVVGzP2NW5zi97NebEuYsbHgDDSnR9sEKxhhq6G30vrwHEfg/MzdvNp6EupNp J1DnWD0DgMlYMxjZ8YskrSI7/MFB5PCxj/InwAXRZmlPPmlWIRTJfUtwYmhlkoLS zCxfS/sIof9C1pU7noe1WwOz8ylVPeQO3KvBIVhy3WJcVnCDlYX7/Uf/z/sU/d0Z Hd3/PQ6F6xTUEBzXKOFG/3y9EUQuoYP/fckFM4vmH9OEvYWmWqc= =+b4H -----END PGP SIGNATURE----- Merge tag 'iommu-fixes-v5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull iommu fixes from Joerg Roedel: - A couple more fixes for the Intel VT-d driver for bugs introduced during the recent conversion of this driver to use IOMMU core default domains. - Fix for common dma-iommu code to make sure MSI mappings happen in the correct domain for a device. - Fix a corner case in the handling of sg-lists in dma-iommu code that might cause dma_length to be truncated. - Mark a switch as fall-through in arm-smmu code. * tag 'iommu-fixes-v5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/vt-d: Fix possible use-after-free of private domain iommu/vt-d: Detach domain before using a private one iommu/dma: Handle SG length overflow better iommu/vt-d: Correctly check format of page table in debugfs iommu/vt-d: Detach domain when move device out of group iommu/arm-smmu: Mark expected switch fall-through iommu/dma: Handle MSI mappings separately |
||
|
Linus Torvalds
|
cab6d5b66b |
Merge branch 'akpm' (patches from Andrew)
Merge misc VM fixes from Andrew Morton:
"A bunch of hotfixes, all affecting mm/.
The two-patch series from Andrea may be controversial. This restores
patches which were reverted in Dec 2018 due to a regression report [*].
After extensive discussion it is evident that the problems which these
patches solved were significantly more serious than the problems they
introduced. I am told that major distros are already carrying these
two patches for this reason"
[*] See
https://lore.kernel.org/lkml/alpine.DEB.2.21.1812061343240.144733@chino.kir.corp.google.com/
https://lore.kernel.org/lkml/alpine.DEB.2.21.1812031545560.161134@chino.kir.corp.google.com/
for the google-specific issues brought up by David Rijentes. And as
Andrew says:
"I'm unaware of anyone else who will be adversely affected by this,
and google already carries over a thousand kernel patches - another
won't kill them.
There has been sporadic discussion about fixing these things for
real but it's clear that nobody apart from David is particularly
motivated"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
hugetlbfs: fix hugetlb page migration/fault race causing SIGBUS
mm, vmscan: do not special-case slab reclaim when watermarks are boosted
Revert "mm, thp: restore node-local hugepage allocations"
Revert "Revert "mm, thp: consolidate THP gfp handling into alloc_hugepage_direct_gfpmask""
include/asm-generic/5level-fixup.h: fix variable 'p4d' set but not used
seq_file: fix problem when seeking mid-record
mm: workingset: fix vmstat counters for shadow nodes
mm/usercopy: use memory range to be accessed for wraparound check
mm: kmemleak: disable early logging in case of error
mm/vmalloc.c: fix percpu free VM area search criteria
mm/memcontrol.c: fix use after free in mem_cgroup_iter()
mm/z3fold.c: fix z3fold_destroy_pool() race condition
mm/z3fold.c: fix z3fold_destroy_pool() ordering
mm: mempolicy: handle vma with unmovable pages mapped correctly in mbind
mm: mempolicy: make the behavior consistent when MPOL_MF_MOVE* and MPOL_MF_STRICT were specified
mm/hmm: fix bad subpage pointer in try_to_unmap_one
mm/hmm: fix ZONE_DEVICE anon page mapping reuse
mm: document zone device struct page field usage
|
||
Mike Kravetz
|
4643d67e8c |
hugetlbfs: fix hugetlb page migration/fault race causing SIGBUS
Li Wang discovered that LTP/move_page12 V2 sometimes triggers SIGBUS in
the kernel-v5.2.3 testing. This is caused by a race between hugetlb
page migration and page fault.
If a hugetlb page can not be allocated to satisfy a page fault, the task
is sent SIGBUS. This is normal hugetlbfs behavior. A hugetlb fault
mutex exists to prevent two tasks from trying to instantiate the same
page. This protects against the situation where there is only one
hugetlb page, and both tasks would try to allocate. Without the mutex,
one would fail and SIGBUS even though the other fault would be
successful.
There is a similar race between hugetlb page migration and fault.
Migration code will allocate a page for the target of the migration. It
will then unmap the original page from all page tables. It does this
unmap by first clearing the pte and then writing a migration entry. The
page table lock is held for the duration of this clear and write
operation. However, the beginnings of the hugetlb page fault code
optimistically checks the pte without taking the page table lock. If
clear (as it can be during the migration unmap operation), a hugetlb
page allocation is attempted to satisfy the fault. Note that the page
which will eventually satisfy this fault was already allocated by the
migration code. However, the allocation within the fault path could
fail which would result in the task incorrectly being sent SIGBUS.
Ideally, we could take the hugetlb fault mutex in the migration code
when modifying the page tables. However, locks must be taken in the
order of hugetlb fault mutex, page lock, page table lock. This would
require significant rework of the migration code. Instead, the issue is
addressed in the hugetlb fault code. After failing to allocate a huge
page, take the page table lock and check for huge_pte_none before
returning an error. This is the same check that must be made further in
the code even if page allocation is successful.
Link: http://lkml.kernel.org/r/20190808000533.7701-1-mike.kravetz@oracle.com
Fixes:
|
||
Mel Gorman
|
28360f3987 |
mm, vmscan: do not special-case slab reclaim when watermarks are boosted
Dave Chinner reported a problem pointing a finger at commit |
||
Andrea Arcangeli
|
a8282608c8 |
Revert "mm, thp: restore node-local hugepage allocations"
This reverts commit |
||
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Andrea Arcangeli
|
92717d429b |
Revert "Revert "mm, thp: consolidate THP gfp handling into alloc_hugepage_direct_gfpmask""
Patch series "reapply: relax __GFP_THISNODE for MADV_HUGEPAGE mappings". The fixes for what was originally reported as "pathological THP behavior" we rightfully reverted to be sure not to introduced regressions at end of a merge window after a severe regression report from the kernel bot. We can safely re-apply them now that we had time to analyze the problem. The mm process worked fine, because the good fixes were eventually committed upstream without excessive delay. The regression reported by the kernel bot however forced us to revert the good fixes to be sure not to introduce regressions and to give us the time to analyze the issue further. The silver lining is that this extra time allowed to think more at this issue and also plan for a future direction to improve things further in terms of THP NUMA locality. This patch (of 2): This reverts commit |
||
Qian Cai
|
0cfaee2af3 |
include/asm-generic/5level-fixup.h: fix variable 'p4d' set but not used
A compiler throws a warning on an arm64 system since commit
|
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NeilBrown
|
6a2aeab59e |
seq_file: fix problem when seeking mid-record
If you use lseek or similar (e.g. pread) to access a location in a
seq_file file that is within a record, rather than at a record boundary,
then the first read will return the remainder of the record, and the
second read will return the whole of that same record (instead of the
next record). When seeking to a record boundary, the next record is
correctly returned.
This bug was introduced by a recent patch (identified below). Before
that patch, seq_read() would increment m->index when the last of the
buffer was returned (m->count == 0). After that patch, we rely on
->next to increment m->index after filling the buffer - but there was
one place where that didn't happen.
Link: https://lkml.kernel.org/lkml/877e7xl029.fsf@notabene.neil.brown.name/
Fixes:
|
||
Roman Gushchin
|
ec9f02384f |
mm: workingset: fix vmstat counters for shadow nodes
Memcg counters for shadow nodes are broken because the memcg pointer is
obtained in a wrong way. The following approach is used:
virt_to_page(xa_node)->mem_cgroup
Since commit
|
||
Isaac J. Manjarres
|
951531691c |
mm/usercopy: use memory range to be accessed for wraparound check
Currently, when checking to see if accessing n bytes starting at address
"ptr" will cause a wraparound in the memory addresses, the check in
check_bogus_address() adds an extra byte, which is incorrect, as the
range of addresses that will be accessed is [ptr, ptr + (n - 1)].
This can lead to incorrectly detecting a wraparound in the memory
address, when trying to read 4 KB from memory that is mapped to the the
last possible page in the virtual address space, when in fact, accessing
that range of memory would not cause a wraparound to occur.
Use the memory range that will actually be accessed when considering if
accessing a certain amount of bytes will cause the memory address to
wrap around.
Link: http://lkml.kernel.org/r/1564509253-23287-1-git-send-email-isaacm@codeaurora.org
Fixes:
|
||
Catalin Marinas
|
fcf3a5b62f |
mm: kmemleak: disable early logging in case of error
If an error occurs during kmemleak_init() (e.g. kmem cache cannot be created), kmemleak is disabled but kmemleak_early_log remains enabled. Subsequently, when the .init.text section is freed, the log_early() function no longer exists. To avoid a page fault in such scenario, ensure that kmemleak_disable() also disables early logging. Link: http://lkml.kernel.org/r/20190731152302.42073-1-catalin.marinas@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Reported-by: Qian Cai <cai@lca.pw> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Kuppuswamy Sathyanarayanan
|
5336e52c9e |
mm/vmalloc.c: fix percpu free VM area search criteria
Recent changes to the vmalloc code by commit |
||
Miles Chen
|
54a83d6bcb |
mm/memcontrol.c: fix use after free in mem_cgroup_iter()
This patch is sent to report an use after free in mem_cgroup_iter()
after merging commit be2657752e9e ("mm: memcg: fix use after free in
mem_cgroup_iter()").
I work with android kernel tree (4.9 & 4.14), and commit be2657752e9e
("mm: memcg: fix use after free in mem_cgroup_iter()") has been merged
to the trees. However, I can still observe use after free issues
addressed in the commit be2657752e9e. (on low-end devices, a few times
this month)
backtrace:
css_tryget <- crash here
mem_cgroup_iter
shrink_node
shrink_zones
do_try_to_free_pages
try_to_free_pages
__perform_reclaim
__alloc_pages_direct_reclaim
__alloc_pages_slowpath
__alloc_pages_nodemask
To debug, I poisoned mem_cgroup before freeing it:
static void __mem_cgroup_free(struct mem_cgroup *memcg)
for_each_node(node)
free_mem_cgroup_per_node_info(memcg, node);
free_percpu(memcg->stat);
+ /* poison memcg before freeing it */
+ memset(memcg, 0x78, sizeof(struct mem_cgroup));
kfree(memcg);
}
The coredump shows the position=0xdbbc2a00 is freed.
(gdb) p/x ((struct mem_cgroup_per_node *)0xe5009e00)->iter[8]
$13 = {position = 0xdbbc2a00, generation = 0x2efd}
0xdbbc2a00: 0xdbbc2e00 0x00000000 0xdbbc2800 0x00000100
0xdbbc2a10: 0x00000200 0x78787878 0x00026218 0x00000000
0xdbbc2a20: 0xdcad6000 0x00000001 0x78787800 0x00000000
0xdbbc2a30: 0x78780000 0x00000000 0x0068fb84 0x78787878
0xdbbc2a40: 0x78787878 0x78787878 0x78787878 0xe3fa5cc0
0xdbbc2a50: 0x78787878 0x78787878 0x00000000 0x00000000
0xdbbc2a60: 0x00000000 0x00000000 0x00000000 0x00000000
0xdbbc2a70: 0x00000000 0x00000000 0x00000000 0x00000000
0xdbbc2a80: 0x00000000 0x00000000 0x00000000 0x00000000
0xdbbc2a90: 0x00000001 0x00000000 0x00000000 0x00100000
0xdbbc2aa0: 0x00000001 0xdbbc2ac8 0x00000000 0x00000000
0xdbbc2ab0: 0x00000000 0x00000000 0x00000000 0x00000000
0xdbbc2ac0: 0x00000000 0x00000000 0xe5b02618 0x00001000
0xdbbc2ad0: 0x00000000 0x78787878 0x78787878 0x78787878
0xdbbc2ae0: 0x78787878 0x78787878 0x78787878 0x78787878
0xdbbc2af0: 0x78787878 0x78787878 0x78787878 0x78787878
0xdbbc2b00: 0x78787878 0x78787878 0x78787878 0x78787878
0xdbbc2b10: 0x78787878 0x78787878 0x78787878 0x78787878
0xdbbc2b20: 0x78787878 0x78787878 0x78787878 0x78787878
0xdbbc2b30: 0x78787878 0x78787878 0x78787878 0x78787878
0xdbbc2b40: 0x78787878 0x78787878 0x78787878 0x78787878
0xdbbc2b50: 0x78787878 0x78787878 0x78787878 0x78787878
0xdbbc2b60: 0x78787878 0x78787878 0x78787878 0x78787878
0xdbbc2b70: 0x78787878 0x78787878 0x78787878 0x78787878
0xdbbc2b80: 0x78787878 0x78787878 0x00000000 0x78787878
0xdbbc2b90: 0x78787878 0x78787878 0x78787878 0x78787878
0xdbbc2ba0: 0x78787878 0x78787878 0x78787878 0x78787878
In the reclaim path, try_to_free_pages() does not setup
sc.target_mem_cgroup and sc is passed to do_try_to_free_pages(), ...,
shrink_node().
In mem_cgroup_iter(), root is set to root_mem_cgroup because
sc->target_mem_cgroup is NULL. It is possible to assign a memcg to
root_mem_cgroup.nodeinfo.iter in mem_cgroup_iter().
try_to_free_pages
struct scan_control sc = {...}, target_mem_cgroup is 0x0;
do_try_to_free_pages
shrink_zones
shrink_node
mem_cgroup *root = sc->target_mem_cgroup;
memcg = mem_cgroup_iter(root, NULL, &reclaim);
mem_cgroup_iter()
if (!root)
root = root_mem_cgroup;
...
css = css_next_descendant_pre(css, &root->css);
memcg = mem_cgroup_from_css(css);
cmpxchg(&iter->position, pos, memcg);
My device uses memcg non-hierarchical mode. When we release a memcg:
invalidate_reclaim_iterators() reaches only dead_memcg and its parents.
If non-hierarchical mode is used, invalidate_reclaim_iterators() never
reaches root_mem_cgroup.
static void invalidate_reclaim_iterators(struct mem_cgroup *dead_memcg)
{
struct mem_cgroup *memcg = dead_memcg;
for (; memcg; memcg = parent_mem_cgroup(memcg)
...
}
So the use after free scenario looks like:
CPU1 CPU2
try_to_free_pages
do_try_to_free_pages
shrink_zones
shrink_node
mem_cgroup_iter()
if (!root)
root = root_mem_cgroup;
...
css = css_next_descendant_pre(css, &root->css);
memcg = mem_cgroup_from_css(css);
cmpxchg(&iter->position, pos, memcg);
invalidate_reclaim_iterators(memcg);
...
__mem_cgroup_free()
kfree(memcg);
try_to_free_pages
do_try_to_free_pages
shrink_zones
shrink_node
mem_cgroup_iter()
if (!root)
root = root_mem_cgroup;
...
mz = mem_cgroup_nodeinfo(root, reclaim->pgdat->node_id);
iter = &mz->iter[reclaim->priority];
pos = READ_ONCE(iter->position);
css_tryget(&pos->css) <- use after free
To avoid this, we should also invalidate root_mem_cgroup.nodeinfo.iter
in invalidate_reclaim_iterators().
[cai@lca.pw: fix -Wparentheses compilation warning]
Link: http://lkml.kernel.org/r/1564580753-17531-1-git-send-email-cai@lca.pw
Link: http://lkml.kernel.org/r/20190730015729.4406-1-miles.chen@mediatek.com
Fixes:
|
||
Henry Burns
|
b997052bc3 |
mm/z3fold.c: fix z3fold_destroy_pool() race condition
The constraint from the zpool use of z3fold_destroy_pool() is there are
no outstanding handles to memory (so no active allocations), but it is
possible for there to be outstanding work on either of the two wqs in
the pool.
Calling z3fold_deregister_migration() before the workqueues are drained
means that there can be allocated pages referencing a freed inode,
causing any thread in compaction to be able to trip over the bad pointer
in PageMovable().
Link: http://lkml.kernel.org/r/20190726224810.79660-2-henryburns@google.com
Fixes:
|
||
|
Henry Burns
|
6051d3bd3b |
mm/z3fold.c: fix z3fold_destroy_pool() ordering
The constraint from the zpool use of z3fold_destroy_pool() is there are
no outstanding handles to memory (so no active allocations), but it is
possible for there to be outstanding work on either of the two wqs in
the pool.
If there is work queued on pool->compact_workqueue when it is called,
z3fold_destroy_pool() will do:
z3fold_destroy_pool()
destroy_workqueue(pool->release_wq)
destroy_workqueue(pool->compact_wq)
drain_workqueue(pool->compact_wq)
do_compact_page(zhdr)
kref_put(&zhdr->refcount)
__release_z3fold_page(zhdr, ...)
queue_work_on(pool->release_wq, &pool->work) *BOOM*
So compact_wq needs to be destroyed before release_wq.
Link: http://lkml.kernel.org/r/20190726224810.79660-1-henryburns@google.com
Fixes:
|
||
Yang Shi
|
a53190a4aa |
mm: mempolicy: handle vma with unmovable pages mapped correctly in mbind
When running syzkaller internally, we ran into the below bug on 4.9.x
kernel:
kernel BUG at mm/huge_memory.c:2124!
invalid opcode: 0000 [#1] SMP KASAN
CPU: 0 PID: 1518 Comm: syz-executor107 Not tainted 4.9.168+ #2
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.5.1 01/01/2011
task: ffff880067b34900 task.stack: ffff880068998000
RIP: split_huge_page_to_list+0x8fb/0x1030 mm/huge_memory.c:2124
Call Trace:
split_huge_page include/linux/huge_mm.h:100 [inline]
queue_pages_pte_range+0x7e1/0x1480 mm/mempolicy.c:538
walk_pmd_range mm/pagewalk.c:50 [inline]
walk_pud_range mm/pagewalk.c:90 [inline]
walk_pgd_range mm/pagewalk.c:116 [inline]
__walk_page_range+0x44a/0xdb0 mm/pagewalk.c:208
walk_page_range+0x154/0x370 mm/pagewalk.c:285
queue_pages_range+0x115/0x150 mm/mempolicy.c:694
do_mbind mm/mempolicy.c:1241 [inline]
SYSC_mbind+0x3c3/0x1030 mm/mempolicy.c:1370
SyS_mbind+0x46/0x60 mm/mempolicy.c:1352
do_syscall_64+0x1d2/0x600 arch/x86/entry/common.c:282
entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: c7 80 1c 02 00 e8 26 0a 76 01 <0f> 0b 48 c7 c7 40 46 45 84 e8 4c
RIP [<ffffffff81895d6b>] split_huge_page_to_list+0x8fb/0x1030 mm/huge_memory.c:2124
RSP <ffff88006899f980>
with the below test:
uint64_t r[1] = {0xffffffffffffffff};
int main(void)
{
syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
intptr_t res = 0;
res = syscall(__NR_socket, 0x11, 3, 0x300);
if (res != -1)
r[0] = res;
*(uint32_t*)0x20000040 = 0x10000;
*(uint32_t*)0x20000044 = 1;
*(uint32_t*)0x20000048 = 0xc520;
*(uint32_t*)0x2000004c = 1;
syscall(__NR_setsockopt, r[0], 0x107, 0xd, 0x20000040, 0x10);
syscall(__NR_mmap, 0x20fed000, 0x10000, 0, 0x8811, r[0], 0);
*(uint64_t*)0x20000340 = 2;
syscall(__NR_mbind, 0x20ff9000, 0x4000, 0x4002, 0x20000340, 0x45d4, 3);
return 0;
}
Actually the test does:
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
socket(AF_PACKET, SOCK_RAW, 768) = 3
setsockopt(3, SOL_PACKET, PACKET_TX_RING, {block_size=65536, block_nr=1, frame_size=50464, frame_nr=1}, 16) = 0
mmap(0x20fed000, 65536, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_DENYWRITE, 3, 0) = 0x20fed000
mbind(..., MPOL_MF_STRICT|MPOL_MF_MOVE) = 0
The setsockopt() would allocate compound pages (16 pages in this test)
for packet tx ring, then the mmap() would call packet_mmap() to map the
pages into the user address space specified by the mmap() call.
When calling mbind(), it would scan the vma to queue the pages for
migration to the new node. It would split any huge page since 4.9
doesn't support THP migration, however, the packet tx ring compound
pages are not THP and even not movable. So, the above bug is triggered.
However, the later kernel is not hit by this issue due to commit
|
||
|
Yang Shi
|
d883544515 |
mm: mempolicy: make the behavior consistent when MPOL_MF_MOVE* and MPOL_MF_STRICT were specified
When both MPOL_MF_MOVE* and MPOL_MF_STRICT was specified, mbind() should
try best to migrate misplaced pages, if some of the pages could not be
migrated, then return -EIO.
There are three different sub-cases:
1. vma is not migratable
2. vma is migratable, but there are unmovable pages
3. vma is migratable, pages are movable, but migrate_pages() fails
If #1 happens, kernel would just abort immediately, then return -EIO,
after
|
||
Ralph Campbell
|
1de13ee592 |
mm/hmm: fix bad subpage pointer in try_to_unmap_one
When migrating an anonymous private page to a ZONE_DEVICE private page,
the source page->mapping and page->index fields are copied to the
destination ZONE_DEVICE struct page and the page_mapcount() is
increased. This is so rmap_walk() can be used to unmap and migrate the
page back to system memory.
However, try_to_unmap_one() computes the subpage pointer from a swap pte
which computes an invalid page pointer and a kernel panic results such
as:
BUG: unable to handle page fault for address: ffffea1fffffffc8
Currently, only single pages can be migrated to device private memory so
no subpage computation is needed and it can be set to "page".
[rcampbell@nvidia.com: add comment]
Link: http://lkml.kernel.org/r/20190724232700.23327-4-rcampbell@nvidia.com
Link: http://lkml.kernel.org/r/20190719192955.30462-4-rcampbell@nvidia.com
Fixes:
|
||
|
Ralph Campbell
|
7ab0ad0e74 |
mm/hmm: fix ZONE_DEVICE anon page mapping reuse
When a ZONE_DEVICE private page is freed, the page->mapping field can be
set. If this page is reused as an anonymous page, the previous value
can prevent the page from being inserted into the CPU's anon rmap table.
For example, when migrating a pte_none() page to device memory:
migrate_vma(ops, vma, start, end, src, dst, private)
migrate_vma_collect()
src[] = MIGRATE_PFN_MIGRATE
migrate_vma_prepare()
/* no page to lock or isolate so OK */
migrate_vma_unmap()
/* no page to unmap so OK */
ops->alloc_and_copy()
/* driver allocates ZONE_DEVICE page for dst[] */
migrate_vma_pages()
migrate_vma_insert_page()
page_add_new_anon_rmap()
__page_set_anon_rmap()
/* This check sees the page's stale mapping field */
if (PageAnon(page))
return
/* page->mapping is not updated */
The result is that the migration appears to succeed but a subsequent CPU
fault will be unable to migrate the page back to system memory or worse.
Clear the page->mapping field when freeing the ZONE_DEVICE page so stale
pointer data doesn't affect future page use.
Link: http://lkml.kernel.org/r/20190719192955.30462-3-rcampbell@nvidia.com
Fixes:
|
||
|
Ralph Campbell
|
76470ccd62 |
mm: document zone device struct page field usage
Patch series "mm/hmm: fixes for device private page migration", v3. Testing the latest linux git tree turned up a few bugs with page migration to and from ZONE_DEVICE private and anonymous pages. Hopefully it clarifies how ZONE_DEVICE private struct page uses the same mapping and index fields from the source anonymous page mapping. This patch (of 3): Struct page for ZONE_DEVICE private pages uses the page->mapping and and page->index fields while the source anonymous pages are migrated to device private memory. This is so rmap_walk() can find the page when migrating the ZONE_DEVICE private page back to system memory. ZONE_DEVICE pmem backed fsdax pages also use the page->mapping and page->index fields when files are mapped into a process address space. Add comments to struct page and remove the unused "_zd_pad_1" field to make this more clear. Link: http://lkml.kernel.org/r/20190724232700.23327-2-rcampbell@nvidia.com Signed-off-by: Ralph Campbell <rcampbell@nvidia.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Christoph Lameter <cl@linux.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Jérôme Glisse <jglisse@redhat.com> Cc: "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com> Cc: Lai Jiangshan <jiangshanlai@gmail.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Linus Torvalds
|
ee1c7bd33e |
tpmdd fixes for Linux v5.3-rc4
-----BEGIN PGP SIGNATURE----- iJYEABYIAD4WIQRE6pSOnaBC00OEHEIaerohdGur0gUCXVLtdiAcamFya2tvLnNh a2tpbmVuQGxpbnV4LmludGVsLmNvbQAKCRAaerohdGur0uadAP0dqXGizY45Bxtx wZHJaZZWiCj7bINI5mOym5AYwdtaCQEA5PlQ3ESHs6jqEu743jOlzLCmtk0l5Q3o LL19MYOhswU= =CuCU -----END PGP SIGNATURE----- Merge tag 'tpmdd-next-20190813' of git://git.infradead.org/users/jjs/linux-tpmdd Pull tpm fixes from Jarkko Sakkinen: "One more bug fix for the next release" * tag 'tpmdd-next-20190813' of git://git.infradead.org/users/jjs/linux-tpmdd: KEYS: trusted: allow module init if TPM is inactive or deactivated |
||
|
Linus Torvalds
|
60a8db7902 |
SCSI fixes on 20190813
Single lpfc fix, for a single cpu corner case. Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com> -----BEGIN PGP SIGNATURE----- iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCXVKNpSYcamFtZXMuYm90 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishcBWAQDV2FTB Day/5EVD/hwtXNNaA2ygzy/Vi8QgNV0xqQOzRQD/cVoh8fMCqlV1yVqrvMikJRp4 Zrbnvhe0k4cGhdD8Dcg= =Jpj2 -----END PGP SIGNATURE----- Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fix from James Bottomley: "Single lpfc fix, for a single-cpu corner case" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: lpfc: Fix crash when cpu count is 1 and null irq affinity mask |
||
Roberto Sassu
|
2d6c25215a |
KEYS: trusted: allow module init if TPM is inactive or deactivated
Commit |
||
Bernard Metzler
|
2c8ccb37b0 |
RDMA/siw: Change CQ flags from 64->32 bits
This patch changes the driver/user shared (mmapped) CQ notification flags field from unsigned 64-bits size to unsigned 32-bits size. This enables building siw on 32-bit architectures. This patch changes the siw-abi, but as siw was only just merged in this merge window cycle, there are no released kernels with the prior abi. We are making no attempt to be binary compatible with siw user space libraries prior to the merge of siw into the upstream kernel, only moving forward with upstream kernels and upstream rdma-core provided siw libraries are we guaranteeing compatibility. Signed-off-by: Bernard Metzler <bmt@zurich.ibm.com> Link: https://lore.kernel.org/r/20190809151816.13018-1-bmt@zurich.ibm.com Signed-off-by: Doug Ledford <dledford@redhat.com> |
||
Dan Carpenter
|
932727c556 |
RDMA/core: Fix error code in stat_get_doit_qp()
We need to set the error codes on these paths. Currently the only
possible error code is -EMSGSIZE so that's what the patch uses.
Fixes:
|
||
|
Dan Carpenter
|
17c19287ec |
RDMA/siw: Fix a memory leak in siw_init_cpulist()
The error handling code doesn't free siw_cpu_info.tx_valid_cpus[0]. The
first iteration through the loop is a no-op so this is sort of an off
by one bug. Also Bernard pointed out that we can remove the NULL
assignment and simplify the code a bit.
Fixes:
|
||
Yishai Hadas
|
e9eec6a55c |
IB/mlx5: Fix use-after-free error while accessing ev_file pointer
Call to uverbs_close_fd() releases file pointer to 'ev_file' and
mlx5_ib_dev is going to be inaccessible. Cache pointer prior cleaning
resources to solve the KASAN warning below.
BUG: KASAN: use-after-free in devx_async_event_close+0x391/0x480 [mlx5_ib]
Read of size 8 at addr ffff888301e3cec0 by task devx_direct_tes/4631
CPU: 1 PID: 4631 Comm: devx_direct_tes Tainted: G OE 5.3.0-rc1-for-upstream-dbg-2019-07-26_01-19-56-93 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu2 04/01/2014
Call Trace:
dump_stack+0x9a/0xeb
print_address_description+0x1e2/0x400
? devx_async_event_close+0x391/0x480 [mlx5_ib]
__kasan_report+0x15c/0x1df
? devx_async_event_close+0x391/0x480 [mlx5_ib]
kasan_report+0xe/0x20
devx_async_event_close+0x391/0x480 [mlx5_ib]
__fput+0x26a/0x7b0
task_work_run+0x10d/0x180
exit_to_usermode_loop+0x137/0x160
do_syscall_64+0x3c7/0x490
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f5df907d664
Code: 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f
80 00 00 00 00 8b 05 6a cd 20 00 48 63 ff 85 c0 75 13 b8
03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 44 f3 c3 66 90
48 83 ec 18 48 89 7c 24 08 e8
RSP: 002b:00007ffd353cb958 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 000056017a88c348 RCX: 00007f5df907d664
RDX: 00007f5df969d400 RSI: 00007f5de8f1ec90 RDI: 0000000000000006
RBP: 00007f5df9681dc0 R08: 00007f5de8736410 R09: 000056017a9d2dd0
R10: 000000000000000b R11: 0000000000000246 R12: 00007f5de899d7d0
R13: 00007f5df96c4248 R14: 00007f5de8f1ecb0 R15: 000056017ae41308
Allocated by task 4631:
save_stack+0x19/0x80
kasan_kmalloc.constprop.3+0xa0/0xd0
alloc_uobj+0x71/0x230 [ib_uverbs]
alloc_begin_fd_uobject+0x2e/0xc0 [ib_uverbs]
rdma_alloc_begin_uobject+0x96/0x140 [ib_uverbs]
ib_uverbs_run_method+0xdf0/0x1940 [ib_uverbs]
ib_uverbs_cmd_verbs+0x57e/0xdb0 [ib_uverbs]
ib_uverbs_ioctl+0x177/0x260 [ib_uverbs]
do_vfs_ioctl+0x18f/0x1010
ksys_ioctl+0x70/0x80
__x64_sys_ioctl+0x6f/0xb0
do_syscall_64+0x95/0x490
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Freed by task 4631:
save_stack+0x19/0x80
__kasan_slab_free+0x11d/0x160
slab_free_freelist_hook+0x67/0x1a0
kfree+0xb9/0x2a0
uverbs_close_fd+0x118/0x1c0 [ib_uverbs]
devx_async_event_close+0x28a/0x480 [mlx5_ib]
__fput+0x26a/0x7b0
task_work_run+0x10d/0x180
exit_to_usermode_loop+0x137/0x160
do_syscall_64+0x3c7/0x490
entry_SYSCALL_64_after_hwframe+0x49/0xbe
The buggy address belongs to the object at ffff888301e3cda8
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 280 bytes inside of 512-byte region
[ffff888301e3cda8, ffff888301e3cfa8)
The buggy address belongs to the page:
page:ffffea000c078e00 refcount:1 mapcount:0
mapping:ffff888352811300 index:0x0 compound_mapcount: 0
flags: 0x2fffff80010200(slab|head)
raw: 002fffff80010200 ffffea000d152608 ffffea000c077808 ffff888352811300
raw: 0000000000000000 0000000000250025 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff888301e3cd80: fc fc fc fc fc fb fb fb fb fb fb fb fb fb fb fb
ffff888301e3ce00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888301e3ce80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888301e3cf00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888301e3cf80: fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc
Disabling lock debugging due to kernel taint
Cc: <stable@vger.kernel.org> # 5.2
Fixes:
|
||
|
Linus Torvalds
|
d45331b00d | Linux 5.3-rc4 | ||
|
Linus Torvalds
|
b6c0649caf |
dax fixes v5.3-rc4
- Fix dax_layout_busy_page() to not discard private cow pages of fs/dax
private mappings.
- Update the memremap_pages core to properly cleanup on behalf of
internal reference-count users like device-dax.
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Merge tag 'dax-fixes-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull dax fixes from Dan Williams:
"A filesystem-dax and device-dax fix for v5.3.
The filesystem-dax fix is tagged for stable as the implementation has
been mistakenly throwing away all cow pages on any truncate or hole
punch operation as part of the solution to coordinate device-dma vs
truncate to dax pages.
The device-dax change fixes up a regression this cycle from the
introduction of a common 'internal per-cpu-ref' implementation.
Summary:
- Fix dax_layout_busy_page() to not discard private cow pages of
fs/dax private mappings.
- Update the memremap_pages core to properly cleanup on behalf of
internal reference-count users like device-dax"
* tag 'dax-fixes-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
mm/memremap: Fix reuse of pgmap instances with internal references
dax: dax_layout_busy_page() should not unmap cow pages
|
||
|
Linus Torvalds
|
f6192cb742 |
Bug fix for NTB MSI kernel compile warning
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||
|
Linus Torvalds
|
296d05cb0d |
RISC-V updates for v5.3-rc4
A few minor RISC-V updates for v5.3-rc4:
- Remove __udivdi3() from the 32-bit Linux port, converting the only
upstream user to use do_div(), per Linux policy
- Convert the RISC-V standard clocksource away from per-cpu data structures,
since only one is used by Linux, even on a multi-CPU system
- A set of DT binding updates that remove an obsolete text binding in
favor of a YAML binding, fix a bogus compatible string in the schema
(thus fixing a "make dtbs_check" warning), and clarifies the future
values expected in one of the RISC-V CPU properties
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Merge tag 'riscv/for-v5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Paul Walmsley:
"A few minor RISC-V updates for v5.3-rc4:
- Remove __udivdi3() from the 32-bit Linux port, converting the only
upstream user to use do_div(), per Linux policy
- Convert the RISC-V standard clocksource away from per-cpu data
structures, since only one is used by Linux, even on a multi-CPU
system
- A set of DT binding updates that remove an obsolete text binding in
favor of a YAML binding, fix a bogus compatible string in the
schema (thus fixing a "make dtbs_check" warning), and clarifies the
future values expected in one of the RISC-V CPU properties"
* tag 'riscv/for-v5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
dt-bindings: riscv: fix the schema compatible string for the HiFive Unleashed board
dt-bindings: riscv: remove obsolete cpus.txt
RISC-V: Remove udivdi3
riscv: delay: use do_div() instead of __udivdi3()
dt-bindings: Update the riscv,isa string description
RISC-V: Remove per cpu clocksource
|
||
|
Linus Torvalds
|
6d8f809cb5 |
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A few fixes for x86:
- Don't reset the carefully adjusted build flags for the purgatory
and remove the unwanted flags instead. The 'reset all' approach led
to build fails under certain circumstances.
- Unbreak CLANG build of the purgatory by avoiding the builtin
memcpy/memset implementations.
- Address missing prototype warnings by including the proper header
- Fix yet more fall-through issues"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/lib/cpu: Address missing prototypes warning
x86/purgatory: Use CFLAGS_REMOVE rather than reset KBUILD_CFLAGS
x86/purgatory: Do not use __builtin_memcpy and __builtin_memset
x86: mtrr: cyrix: Mark expected switch fall-through
x86/ptrace: Mark expected switch fall-through
|
||
|
Linus Torvalds
|
d2359a5153 |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling fixes from Thomas Gleixner:
"Perf tooling fixes all over the place:
- Fix the selection of the main thread COMM in db-export
- Fix the disassemmbly display for BPF in annotate
- Fix cpumap mask setup in perf ftrace when only one CPU is present
- Add the missing 'cpu_clk_unhalted.core' event
- Fix CPU 0 bindings in NUMA benchmarks
- Fix the module size calculations for s390
- Handle the gap between kernel end and module start on s390
correctly
- Build and typo fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf pmu-events: Fix missing "cpu_clk_unhalted.core" event
perf annotate: Fix s390 gap between kernel end and module start
perf record: Fix module size on s390
perf tools: Fix include paths in ui directory
perf tools: Fix a typo in a variable name in the Documentation Makefile
perf cpumap: Fix writing to illegal memory in handling cpumap mask
perf ftrace: Fix failure to set cpumask when only one cpu is present
perf db-export: Fix thread__exec_comm()
perf annotate: Fix printing of unaugmented disassembled instructions from BPF
perf bench numa: Fix cpu0 binding
|
||
|
Linus Torvalds
|
dcbb4a1539 |
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
"Three fixlets for the scheduler:
- Avoid double bandwidth accounting in the push & pull code
- Use a sane FIFO priority for the Pressure Stall Information (PSI)
thread.
- Avoid permission checks when setting the scheduler params for the
PSI thread"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/psi: Do not require setsched permission from the trigger creator
sched/psi: Reduce psimon FIFO priority
sched/deadline: Fix double accounting of rq/running bw in push & pull
|
||
|
Linus Torvalds
|
ed254bb54f |
Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Thomas Gleixner: "A small fix for the affinity spreading code. It failed to handle situations where a single vector was requested either due to only one CPU being available or vector exhaustion causing only a single interrupt to be granted. The fix is to simply remove the requirement in the affinity spreading code for more than one interrupt being available" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq/affinity: Create affinity mask for single vector |
||
|
Linus Torvalds
|
6054f4ecdc |
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool warning fix from Thomas Gleixner: "The recent objtool fixes/enhancements unearthed a unbalanced CLAC in the i915 driver. Chris asked me to pick the fix up and route it through" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: drm/i915: Remove redundant user_access_end() from __copy_from_user() error path |
||
|
Linus Torvalds
|
829890d266 |
Fix incorrect lseek / fiemap results
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||
Joe Perches
|
bfd77145f3 |
Makefile: Convert -Wimplicit-fallthrough=3 to just -Wimplicit-fallthrough for clang
A compilation -Wimplicit-fallthrough warning was enabled by commit
|
||
|
Linus Torvalds
|
5aa9100737 |
Char/misc fixes for 5.3-rc4
Here are some small char/misc driver fixes for 5.3-rc4. Two of these are for the habanalabs driver for issues found when running on a big-endian system (are they still alive?) The others are tiny fixes reported by people, and a MAINTAINERS update about the location of the fpga development tree. All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXU6uwA8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ymBrQCfRh8brBuZ4ZoeP9aVgjkPDhwdBLkAn38RdH6c 96J1xGLZf1+CN7GVLnFD =YUWU -----END PGP SIGNATURE----- Merge tag 'char-misc-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes Greg KH: "Here are some small char/misc driver fixes for 5.3-rc4. Two of these are for the habanalabs driver for issues found when running on a big-endian system (are they still alive?) The others are tiny fixes reported by people, and a MAINTAINERS update about the location of the fpga development tree. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: coresight: Fix DEBUG_LOCKS_WARN_ON for uninitialized attribute MAINTAINERS: Move linux-fpga tree to new location nvmem: Use the same permissions for eeprom as for nvmem habanalabs: fix host memory polling in BE architecture habanalabs: fix F/W download in BE architecture |
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|
Linus Torvalds
|
36e630ed98 |
Driver core fixes for 5.3-rc4
Here are 2 small fixes for some driver core issues that have been reported. There is also a kernfs "fix" here, which was then reverted because it was found to cause problems in linux-next. The driver core fixes both resolve reported issues, one with gpioint stuff that showed up in 5.3-rc1, and the other finally (and hopefully) resolves a very long standing race when removing glue directories. It's nice to get that issue finally resolved and the developers involved should be applauded for the persistence it took to get this patch finally accepted. All of these have been in linux-next for a while with no reported issues. Well, the one reported issue, hence the revert :) Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXU6t8Q8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+yk1YgCgy7Mw/CYLBK5It+fItRuAWLdyzMkAoIyo8Qen GS7FeSwM237JlWhC/Jqc =IMyo -----END PGP SIGNATURE----- Merge tag 'driver-core-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core fixes from Greg KH: "Here are two small fixes for some driver core issues that have been reported. There is also a kernfs "fix" here, which was then reverted because it was found to cause problems in linux-next. The driver core fixes both resolve reported issues, one with gpioint stuff that showed up in 5.3-rc1, and the other finally (and hopefully) resolves a very long standing race when removing glue directories. It's nice to get that issue finally resolved and the developers involved should be applauded for the persistence it took to get this patch finally accepted. All of these have been in linux-next for a while with no reported issues. Well, the one reported issue, hence the revert :)" * tag 'driver-core-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: Revert "kernfs: fix memleak in kernel_ops_readdir()" kernfs: fix memleak in kernel_ops_readdir() driver core: Fix use-after-free and double free on glue directory driver core: platform: return -ENXIO for missing GpioInt |
||
|
Linus Torvalds
|
c13f86701e |
TTY fix for 5.3-rc4
Here is a single tty kgdb fix for 5.3-rc4. It fixes an annoying log message that has caused kdb to become useless. It's another fallout from |
||
|
Linus Torvalds
|
15fa98e40e |
Staging / IIO driver fixes for 5.3-rc4
Here are some small staging and IIO driver fixes for 5.3-rc4. Nothing major, just resolutions for a number of small reported issues, full details in the shortlog. All have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXU6s+Q8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ymESgCgx89m2wjVxWJIvqpnUWwzSRdfE7sAnjOl5MG+ oHxph0/GU8f1NZQ3ZOYF =pRYy -----END PGP SIGNATURE----- Merge tag 'staging-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging / IIO driver fixes from Greg KH: "Here are some small staging and IIO driver fixes for 5.3-rc4. Nothing major, just resolutions for a number of small reported issues, full details in the shortlog. All have been in linux-next for a while with no reported issues" * tag 'staging-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: iio: adc: gyroadc: fix uninitialized return code docs: generic-counter.rst: fix broken references for ABI file staging: android: ion: Bail out upon SIGKILL when allocating memory. Staging: fbtft: Fix GPIO handling staging: unisys: visornic: Update the description of 'poll_for_irq()' staging: wilc1000: flush the workqueue before deinit the host staging: gasket: apex: fix copy-paste typo Staging: fbtft: Fix reset assertion when using gpio descriptor Staging: fbtft: Fix probing of gpio descriptor iio: imu: mpu6050: add missing available scan masks iio: cros_ec_accel_legacy: Fix incorrect channel setting IIO: Ingenic JZ47xx: Set clock divider on probe iio: adc: max9611: Fix misuse of GENMASK macro |
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|
Linus Torvalds
|
1041f50921 |
USB fixes for 5.3-rc4
Here are some small USB fixes for 5.3-rc4. The "biggest" one here is moving code from one file to another in order to fix a long-standing race condition with the creation of sysfs files for USB devices. Turns out that there are now userspace tools out there that are hitting this long-known bug, so it's time to fix them. Thankfully the tool-maker in this case fixed the issue :) The other patches in here are all fixes for reported issues. Now that syzbot knows how to fuzz USB drivers better, and is starting to now fuzz the userspace facing side of them at the same time, there will be more and more small fixes like these coming, which is a good thing. All of these have been in linux-next with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXU6vag8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ynNZgCgs6tk3zfjbsiA1YuLtQ5PIazQFwsAn00qRiKi 0MIt5mRc7lEsG1yJgvEQ =fb5s -----END PGP SIGNATURE----- Merge tag 'usb-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are some small USB fixes for 5.3-rc4. The "biggest" one here is moving code from one file to another in order to fix a long-standing race condition with the creation of sysfs files for USB devices. Turns out that there are now userspace tools out there that are hitting this long-known bug, so it's time to fix them. Thankfully the tool-maker in this case fixed the issue :) The other patches in here are all fixes for reported issues. Now that syzbot knows how to fuzz USB drivers better, and is starting to now fuzz the userspace facing side of them at the same time, there will be more and more small fixes like these coming, which is a good thing. All of these have been in linux-next with no reported issues" * tag 'usb-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: setup authorized_default attributes using usb_bus_notify usb: iowarrior: fix deadlock on disconnect Revert "USB: rio500: simplify locking" usb: usbfs: fix double-free of usb memory upon submiturb error usb: yurex: Fix use-after-free in yurex_delete usb: typec: tcpm: Ignore unsupported/unknown alternate mode requests xhci: Fix NULL pointer dereference at endpoint zero reset. usb: host: xhci-rcar: Fix timeout in xhci_suspend() usb: typec: ucsi: ccg: Fix uninitilized symbol error usb: typec: tcpm: remove tcpm dir if no children usb: typec: tcpm: free log buf memory when remove debug file usb: typec: tcpm: Add NULL check before dereferencing config |
||
Christoph Hellwig
|
33dcb37cef |
dma-mapping: fix page attributes for dma_mmap_*
All the way back to introducing dma_common_mmap we've defaulted to mark
the pages as uncached. But this is wrong for DMA coherent devices.
Later on DMA_ATTR_WRITE_COMBINE also got incorrect treatment as that
flag is only treated special on the alloc side for non-coherent devices.
Introduce a new dma_pgprot helper that deals with the check for coherent
devices so that only the remapping cases ever reach arch_dma_mmap_pgprot
and we thus ensure no aliasing of page attributes happens, which makes
the powerpc version of arch_dma_mmap_pgprot obsolete and simplifies the
remaining ones.
Note that this means arch_dma_mmap_pgprot is a bit misnamed now, but
we'll phase it out soon.
Fixes:
|
||
Lucas Stach
|
d8ad55538a |
dma-direct: don't truncate dma_required_mask to bus addressing capabilities
The dma required_mask needs to reflect the actual addressing capabilities
needed to handle the whole system RAM. When truncated down to the bus
addressing capabilities dma_addressing_limited() will incorrectly signal
no limitations for devices which are restricted by the bus_dma_mask.
Fixes:
|
||
|
Christoph Hellwig
|
cf14be0b41 |
dma-direct: fix DMA_ATTR_NO_KERNEL_MAPPING
The new DMA_ATTR_NO_KERNEL_MAPPING needs to actually assign
a dma_addr to work. Also skip it if the architecture needs
forced decryption handling, as that needs a kernel virtual
address.
Fixes:
|
||
|
Linus Torvalds
|
97946f59fe |
Some pin control fixes for the v5.4 series:
- Delay acquisition of regmaps in the Aspeed G5 driver. - Make a symbol static to reduce compiler noise. -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEElDRnuGcz/wPCXQWMQRCzN7AZXXMFAl1OhssACgkQQRCzN7AZ XXOZ8Q//cPbSRI8yYeEiAfCsC32UojzKzsZ42any/Qn2mw9lWjHuq8Qzkt8TVfoE +g1BEcM6aln4j4ZX3MEropULvZmBRsgYObQLqiq0LsT+C+cQUTBXOSEYneLfkXur 9JncvOeymELU0BH6JMznhiKM6fuuepznhrhbWfHrMDddyrmzyTnjXExmKGap1+jZ mrKoDd7uVnpRSWjWXFm0wkwaPhJZBfPHC4Yh8T/VbmGlZ4KOGi/uR/QrjXfrnzec Ml78qbgrSCyv90nefI1ZnmKKTSlWTPhz5jvGD6xFr3C3jUMzKz+JnLH5DMRVsyLK O869nFmcnuLF/+DR0FCdx5HXSSB8uBDEdtZsUhXX0z+X05xX2LKA7VwxWbyHB5fm xcsig7qOvLYLjIhzuOkf4N+zIo32LqbKewkS9/X5J3aJBDkERvbwLZRdajSIruK+ +uChqxD7FE8FMaWfT46aY5AWKLDxlOo1uNQGfh1xFzDMpxb3l6NdJd/4DXD++t5F mH3QpBMssgPLbwUctCkX3PRXDLnAntPZ7avrJgTnHXfhD1s3W/Ln1W6EY5oETGcJ rKO/z2ph5LEtn97iLfMdbIfweHY3dmFZwQAqJukx7zFocqtnM2c+dq14pt/YRAQ0 xepb0u8w+ZOodOO857Omp/YhFwJwRXo9b7KVucs2vqzFlD3N+mE= =4BKY -----END PGP SIGNATURE----- Merge tag 'pinctrl-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control fixes from Linus Walleij: - Delay acquisition of regmaps in the Aspeed G5 driver. - Make a symbol static to reduce compiler noise. * tag 'pinctrl-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: aspeed: Make aspeed_pinmux_ips static pinctrl: aspeed-g5: Delay acquisition of regmaps |