Johannes Berg
56738f4608
netlink: add strict parsing for future attributes ...
Unfortunately, we cannot add strict parsing for all attributes, as
that would break existing userspace. We currently warn about it, but
that's about all we can do.
For new attributes, however, the story is better: nobody is using
them, so we can reject bad sizes.
Also, for new attributes, we need not accept them when the policy
doesn't declare their usage.
David Ahern and I went back and forth on how to best encode this, and
the best way we found was to have a "boundary type", from which point
on new attributes have all possible validation applied, and NLA_UNSPEC
is rejected.
As we didn't want to add another argument to all functions that get a
netlink policy, the workaround is to encode that boundary in the first
entry of the policy array (which is for type 0 and thus probably not
really valid anyway). I put it into the validation union for the rare
possibility that somebody is actually using attribute 0, which would
continue to work fine unless they tried to use the extended validation,
which isn't likely. We also didn't find any in-tree users with type 0.
The reason for setting the "start strict here" attribute is that we
never really need to start strict from 0, which is invalid anyway (or
in legacy families where that isn't true, it cannot be set to strict),
so we can thus reserve the value 0 for "don't do this check" and don't
have to add the tag to all policies right now.
Thus, policies can now opt in to this validation, which we should do
for all existing policies, at least when adding new attributes.
Note that entirely *new* policies won't need to set it, as the use
of that should be using nla_parse()/nlmsg_parse() etc. which anyway
do fully strict validation now, regardless of this.
So in effect, this patch only covers the "existing command with new
attribute" case.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:07:22 -04:00
Fonts: New Terminus large console font
2018-12-19 10:42:08 +01:00
livepatch: Proper error handling in the shadow variables selftest
2019-02-06 11:01:57 +01:00
lib/lz4: update LZ4 decompressor module
2018-10-31 08:54:14 -07:00
lib/lzo: fix bugs for very short or empty input
2019-04-05 16:02:30 -10:00
lib/mpi: remove redundant variable esign
2018-08-07 17:51:39 +08:00
ARM updates for 5.1-rc1
2019-03-15 14:37:46 -07:00
reed_solomon: Fix kernel-doc
2018-07-10 15:00:52 -06:00
lib/xz: Put CRC32_POLY_LE in xz_private.h
2018-10-02 08:44:59 +10:00
lib/zlib_inflate/inflate.c: remove fall through warnings
2018-10-31 08:54:13 -07:00
lib: zstd: clean up Makefile for simpler composite object handling
2018-03-26 02:01:27 +09:00
lib: add crc64 calculation routines
2018-08-22 10:52:48 -07:00
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
lib/assoc_array.c: mark expected switch fall-through
2019-03-07 18:32:00 -08:00
atomics/generic: Define atomic64_fetch_add_unless()
2018-06-21 14:25:21 +02:00
lib/bch: fix possible stack overrun
2018-10-12 09:17:46 +02:00
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
kprobes: Prohibit probing on bsearch()
2019-02-13 08:16:41 +01:00
ila: make lockdep happy again
2018-08-16 12:14:42 -07:00
s390: use common bust_spinlocks()
2018-11-30 07:22:05 +01:00
crypto: chacha - add XChaCha12 support
2018-11-20 14:26:55 +08:00
lib: cordic: Move cordic macros and defines to header file
2018-11-29 17:30:48 +02:00
treewide: add checks for the return value of memblock_alloc*()
2019-03-12 10:04:02 -07:00
crc-t10dif: crc_t10dif_mutex can be static
2018-09-14 14:08:52 +08:00
lib/crc32.c: mark crc32_le_base/__crc32c_le_base aliases as __pure
2019-02-15 19:50:07 +01:00
lib/crc: Move polynomial definition to separate header
2018-07-27 19:04:33 +08:00
lib: add crc64 calculation routines
2018-08-22 10:52:48 -07:00
locking/lockdep: Make global debug_locks* variables read-mostly
2018-10-19 07:53:18 +02:00
debugobjects: call debug_objects_mem_init eariler
2018-12-28 12:11:45 -08:00
atomic: Add irqsave variant of atomic_dec_and_lock()
2018-06-12 23:33:24 +02:00
lib: Use existing define with polynomial
2018-07-27 19:16:38 +08:00
devres: always use dev_name() in devm_ioremap_resource()
2019-01-31 19:28:40 +01:00
lib/div64.c: off by one in shift
2019-03-07 18:32:00 -08:00
dynamic_debug: move pr_err from module.c to ddebug_add_module
2019-03-07 18:32:00 -08:00
errseq: Always report a writeback error once
2018-04-27 08:51:26 -04:00
lib/find_bit_benchmark.c: align test_find_next_and_bit with others
2019-01-04 13:13:46 -08:00
lib/gcd: Remove use of CPU_NO_EFFICIENT_FFS macro
2018-11-12 14:26:21 -08:00
lib/crc: Use consistent naming for CRC-32 polynomials
2018-07-27 19:04:33 +08:00
lib: don't depend on linux headers being installed.
2018-12-29 11:36:44 -08:00
lib/genalloc.c: include vmalloc.h
2019-01-05 13:54:53 -08:00
generic radix trees
2019-03-12 10:04:02 -07:00
radix tree: Remove radix_tree_update_node_t
2018-10-21 10:46:44 -04:00
fix int_sqrt64() for very large numbers
2019-01-21 07:20:18 +13:00
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
iomap: introduce io{read|write}64_{lo_hi|hi_lo}
2019-01-22 13:39:59 +01:00
iommu-helper: mark iommu_is_span_boundary as inline
2018-05-09 06:55:44 +02:00
lib/ioremap: ensure break-before-make is used for huge p4d mappings
2018-12-28 12:11:50 -08:00
iov_iter: Fix build error without CONFIG_CRYPTO
2019-04-03 22:37:41 -04:00
lib/irq_poll: Support schedules in non-interrupt contexts
2019-02-19 20:52:19 -07:00
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md into for-linus
2019-01-03 08:21:02 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-04-25 23:52:29 -04:00
kasan: remove use after scope bugs detection.
2019-03-05 21:07:13 -08:00
lib/ubsan: default UBSAN_ALIGNMENT to not set
2019-03-07 18:32:02 -08:00
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
scsi: klist: Make it safe to use klists in atomic context
2018-07-02 16:20:23 -04:00
kobject: make kset_get_ownership() 'static'
2019-01-22 14:25:26 +01:00
kobject: drop newline from msg string
2019-01-22 14:25:26 +01:00
lib/kstrtox.c: delete unnecessary casts
2018-10-31 08:54:13 -07:00
libcrc32c: Add crc32c_impl function
2018-03-26 15:09:38 +02:00
lib/list_debug.c: print unmangled addresses
2018-04-11 10:28:35 -07:00
locking/lockdep: Make it easy to detect whether or not inside a selftest
2019-02-28 07:55:43 +01:00
lockref: Add lockref_put_not_zero
2018-04-12 09:41:19 -07:00
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
libfdt: prefix header search paths with $(srctree)/
2019-03-14 02:36:04 +09:00
lib: Fix ia64 bootloader linkage
2018-10-16 13:45:44 +02:00
netlink: add strict parsing for future attributes
2019-04-27 17:07:22 -04:00
printk/nmi: Prevent deadlock when accessing the main log buffer in NMI
2018-07-09 14:10:40 +02:00
lib: objagg: fix handling of object with 0 users when assembling hints
2019-02-14 12:41:54 -05:00
lib/parser.c: switch match_number() over to use match_strdup()
2018-10-31 08:54:12 -07:00
percpu-refcount: Replace call_rcu_sched() with call_rcu()
2018-11-27 09:21:45 -08:00
notifier: Remove notifier header file wherever not used
2018-08-30 12:56:40 +02:00
radix tree: Don't return retry entries from lookup
2018-12-06 08:26:16 -05:00
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
lib: reciprocal_div: implement the improved algorithm on the paper mentioned
2018-07-07 01:45:31 +02:00
refcount_t: Add ACQUIRE ordering on success for dec(sub)_and_test() variants
2019-02-04 09:03:31 +01:00
rhashtable: use BIT(0) for locking.
2019-04-12 17:34:45 -07:00
sbitmap: order READ/WRITE freed instance and setting clear bit
2019-03-25 13:05:47 -06:00
lib/scatterlist: Provide a DMA page iterator
2019-02-11 15:02:33 -07:00
seq_buf: Use size_t for len in seq_buf_puts()
2018-12-22 08:21:03 -05:00
lib/sg_pool.c: remove unnecessary null check when freeing object
2018-10-31 08:54:13 -07:00
kernel/kexec_file.c: move purgatories sha256 to common code
2018-04-13 17:10:28 -07:00
lib/show_mem.c: drop pgdat_resize_lock in show_mem()
2018-12-28 12:11:49 -08:00
kprobes: Prohibit probing on preemption checking debug functions
2019-02-13 08:16:40 +01:00
lib/string.c: implement a basic bcmp
2019-04-05 16:02:30 -10:00
make 'user_access_begin()' do 'access_ok()'
2019-01-04 12:56:09 -08:00
make 'user_access_begin()' do 'access_ok()'
2019-01-04 12:56:09 -08:00
syscalls: Remove start and number from syscall_get_arguments() args
2019-04-05 09:26:43 -04:00
bitfield: add tests
2018-06-27 18:58:49 +03:00
lib/test_bitmap.c: fix bitmap optimisation tests to report errors correctly
2018-05-18 17:17:12 -07:00
bpf: test_bpf: turn off preemption in function __run_once
2019-02-25 22:18:07 +01:00
lib: fix build failure in CONFIG_DEBUG_VIRTUAL test
2018-12-17 22:12:30 +11:00
lib/test_firmware.c: remove some dead code
2019-03-07 18:32:00 -08:00
test_hexdump: use memcpy instead of strncpy
2018-11-30 12:13:15 -08:00
test_ida: Fix lockdep warning
2018-10-15 16:31:29 -04:00
kasan: remove use after scope bugs detection.
2019-03-05 21:07:13 -08:00
lib/test_kmod.c: potential double free in error handling
2019-02-01 15:46:23 -08:00
lib: Fix ia64 bootloader linkage
2018-10-16 13:45:44 +02:00
test_objagg: Uninitialized variable in error handling
2019-02-13 22:13:29 -08:00
test_overflow: Add shift overflow tests
2018-08-08 09:47:26 -06:00
lib/vsprintf: Print time and date in human readable format via %pt
2018-12-10 22:39:34 +01:00
rhashtable: move dereference inside rht_ptr()
2019-04-12 17:34:45 -07:00
lib: Introduce test_stackinit module
2019-03-04 09:29:52 -08:00
lib/test_ubsan.c: VLA no longer used in kernel
2019-03-07 18:32:00 -08:00
treewide: simplify Kconfig dependencies for removed archs
2018-03-26 15:55:57 +02:00
vmalloc: add test driver to analyse vmalloc allocator
2019-03-05 21:07:15 -08:00
XArray: Fix xa_reserve for 2-byte aligned entries
2019-02-21 17:54:44 -05:00
textsearch: fix kernel-doc warnings and add kernel-api section
2018-04-16 18:53:13 -04:00
lib/ubsan.c: don't mark __ubsan_handle_builtin_unreachable as noreturn
2018-11-18 10:15:10 -08:00
Add notrace to lib/ucmpdi2.c
2018-04-23 16:39:35 +01:00
lib/ucs2_string.c: add MODULE_LICENSE()
2018-06-07 17:34:39 -07:00
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
Printk changes for 5.1
2019-03-09 09:22:42 -08:00
XArray: Fix xa_reserve for 2-byte aligned entries
2019-02-21 17:54:44 -05:00
56738f4608