android_kernel_motorola_sm6375/mm
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Kuan-Ying Lee 35b72d8e2c mm/kmemleak: reset tag when compare object pointer
commit bfc8089f00fa526dea983844c880fa8106c33ac4 upstream.

When we use HW-tag based kasan and enable vmalloc support, we hit the
following bug.  It is due to comparison between tagged object and
non-tagged pointer.

We need to reset the kasan tag when we need to compare tagged object and
non-tagged pointer.

  kmemleak: [name:kmemleak&]Scan area larger than object 0xffffffe77076f440
  CPU: 4 PID: 1 Comm: init Tainted: G S      W         5.15.25-android13-0-g5cacf919c2bc #1
  Hardware name: MT6983(ENG) (DT)
  Call trace:
   add_scan_area+0xc4/0x244
   kmemleak_scan_area+0x40/0x9c
   layout_and_allocate+0x1e8/0x288
   load_module+0x2c8/0xf00
   __se_sys_finit_module+0x190/0x1d0
   __arm64_sys_finit_module+0x20/0x30
   invoke_syscall+0x60/0x170
   el0_svc_common+0xc8/0x114
   do_el0_svc+0x28/0xa0
   el0_svc+0x60/0xf8
   el0t_64_sync_handler+0x88/0xec
   el0t_64_sync+0x1b4/0x1b8
  kmemleak: [name:kmemleak&]Object 0xf5ffffe77076b000 (size 32768):
  kmemleak: [name:kmemleak&]  comm "init", pid 1, jiffies 4294894197
  kmemleak: [name:kmemleak&]  min_count = 0
  kmemleak: [name:kmemleak&]  count = 0
  kmemleak: [name:kmemleak&]  flags = 0x1
  kmemleak: [name:kmemleak&]  checksum = 0
  kmemleak: [name:kmemleak&]  backtrace:
       module_alloc+0x9c/0x120
       move_module+0x34/0x19c
       layout_and_allocate+0x1c4/0x288
       load_module+0x2c8/0xf00
       __se_sys_finit_module+0x190/0x1d0
       __arm64_sys_finit_module+0x20/0x30
       invoke_syscall+0x60/0x170
       el0_svc_common+0xc8/0x114
       do_el0_svc+0x28/0xa0
       el0_svc+0x60/0xf8
       el0t_64_sync_handler+0x88/0xec
       el0t_64_sync+0x1b4/0x1b8

Link: https://lkml.kernel.org/r/20220318034051.30687-1-Kuan-Ying.Lee@mediatek.com
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Chinwen Chang <chinwen.chang@mediatek.com>
Cc: Nicholas Tang <nicholas.tang@mediatek.com>
Cc: Yee Lee <yee.lee@mediatek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-15 14:18:01 +02:00
..
kasan kasan: fix incorrect arguments passing in kasan_add_zero_shadow 2021-01-27 11:47:53 +01:00
backing-dev.c mm: bdi: initialize bdi_min_ratio when bdi is unregistered 2021-12-14 14:49:00 +01:00
balloon_compaction.c
cleancache.c
cma.c
cma.h
cma_debug.c
compaction.c mm/compaction: fix misbehaviors of fast_find_migrateblock() 2021-03-04 10:26:39 +01:00
debug.c
debug_page_ref.c
dmapool.c
early_ioremap.c
fadvise.c
failslab.c
filemap.c mm/filemap: fix storing to a THP shadow entry 2021-06-10 13:37:15 +02:00
frame_vector.c
frontswap.c
gup.c mm/gup: fix gup_fast with dynamic page table folding 2020-10-01 13:18:24 +02:00
gup_benchmark.c
highmem.c
hmm.c
huge_memory.c mm/huge_memory.c: don't discard hugepage if other processes are mapping it 2021-07-14 16:53:47 +02:00
hugetlb.c hugetlbfs: flush TLBs correctly after huge_pmd_unshare 2021-11-26 10:47:23 +01:00
hugetlb_cgroup.c
hwpoison-inject.c
init-mm.c
internal.h mm/thp: fix vma_address() if virtual address below file offset 2021-06-30 08:47:52 -04:00
interval_tree.c
Kconfig mm/zsmalloc.c: drop ZSMALLOC_PGTABLE_MAPPING 2020-12-16 10:56:59 +01:00
Kconfig.debug
khugepaged.c khugepaged: fix wrong result value for trace_mm_collapse_huge_page_isolate() 2021-05-19 10:08:27 +02:00
kmemleak-test.c
kmemleak.c mm/kmemleak: reset tag when compare object pointer 2022-04-15 14:18:01 +02:00
ksm.c ksm: fix potential missing rmap_item for stable_node 2021-05-19 10:08:27 +02:00
list_lru.c mm: list_lru: set shrinker map bit when child nr_items is not zero 2020-12-11 13:23:31 +01:00
maccess.c
madvise.c mm: validate pmd after splitting 2020-10-01 13:18:21 +02:00
Makefile
memblock.c memblock: use kfree() to release kmalloced memblock regions 2022-03-02 11:41:18 +01:00
memcontrol.c mm, memcg: avoid stale protection values when cgroup is above protection 2021-08-26 08:36:22 -04:00
memfd.c memfd: fix F_SEAL_WRITE after shmem huge page allocated 2022-03-08 19:07:49 +01:00
memory-failure.c mm/memory-failure: make sure wait for page writeback in memory_failure 2021-06-23 14:41:23 +02:00
memory.c mm,hwpoison: unmap poisoned page before invalidation 2022-04-15 14:18:01 +02:00
memory_hotplug.c mm/memory_hotplug: use "unsigned long" for PFN in zone_for_pfn_range() 2021-09-22 12:26:43 +02:00
mempolicy.c mempolicy: mbind_range() set_policy() after vma_merge() 2022-04-15 14:18:00 +02:00
mempool.c
memremap.c
memtest.c
migrate.c mm, thp: use head page in __migration_entry_wait() 2021-06-30 08:47:52 -04:00
mincore.c
mlock.c
mm_init.c
mmap.c mm/mmap.c: initialize align_offset explicitly for vm_unmapped_area 2020-10-01 13:17:54 +02:00
mmu_context.c
mmu_gather.c
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c
msync.c
nommu.c
oom_kill.c mm, oom: do not trigger out_of_memory from the #PF 2021-11-17 09:48:50 +01:00
page-writeback.c
page_alloc.c mm/pages_alloc.c: don't create ZONE_MOVABLE beyond the end of a node 2022-04-15 14:18:00 +02:00
page_counter.c
page_ext.c
page_idle.c
page_io.c swap: fix swapfile read/write offset 2021-03-07 12:20:49 +01:00
page_isolation.c
page_owner.c mm/page_owner: change split_page_owner to take a count 2020-10-29 09:57:52 +01:00
page_poison.c
page_vma_mapped.c mm/thp: another PVMW_SYNC fix in page_vma_mapped_walk() 2021-06-30 08:47:55 -04:00
pagewalk.c mm: pagewalk: fix termination condition in walk_pte_range() 2020-10-01 13:17:30 +02:00
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c
pgtable-generic.c mm/thp: fix __split_huge_pmd_locked() on shmem migration entry 2021-06-30 08:47:52 -04:00
process_vm_access.c
readahead.c
rmap.c mm/thp: fix page_address_in_vma() on file THP tails 2021-06-30 08:47:53 -04:00
rodata_test.c
shmem.c shmem: fix a race between shmem_unused_huge_shrink and shmem_evict_inode 2022-01-27 09:19:29 +01:00
shuffle.c
shuffle.h
slab.c
slab.h mm: kmemleak: slob: respect SLAB_NOLEAKTRACE flag 2021-11-26 10:47:21 +01:00
slab_common.c mm: slab: fix kmem_cache_create failed when sysfs node not destroyed 2021-07-25 14:35:14 +02:00
slob.c
slub.c mm, slub: fix potential memoryleak in kmem_cache_open() 2021-10-27 09:54:28 +02:00
sparse-vmemmap.c
sparse.c mm/sparse: add the missing sparse_buffer_fini() in error branch 2021-05-14 09:44:32 +02:00
swap.c
swap_cgroup.c
swap_slots.c
swap_state.c mm/swap_state: fix a data race in swapin_nr_pages 2020-10-01 13:18:08 +02:00
swapfile.c swap: fix swapfile read/write offset 2021-03-07 12:20:49 +01:00
truncate.c mm/thp: unmap_mapping_page() to fix THP truncate_cleanup_page() 2021-06-30 08:47:53 -04:00
usercopy.c
userfaultfd.c hugetlbfs: hugetlb_fault_mutex_hash() cleanup 2021-03-30 14:35:19 +02:00
util.c
vmacache.c
vmalloc.c
vmpressure.c
vmscan.c mm,vmscan: fix divide by zero in get_scan_count 2021-09-22 12:26:37 +02:00
vmstat.c
workingset.c
z3fold.c mm/z3fold: fix potential memory leak in z3fold_destroy_pool() 2021-07-14 16:53:47 +02:00
zbud.c
zpool.c
zsmalloc.c mm/zsmalloc.c: close race window between zs_pool_dec_isolated() and zs_unregister_migration() 2021-11-17 09:48:47 +01:00
zswap.c