linux-stable/lib
Jeremy Sowden 3462591553 lib/ts_bm: reset initial match offset for every block of text
[ Upstream commit 6f67fbf819 ]

The `shift` variable which indicates the offset in the string at which
to start matching the pattern is initialized to `bm->patlen - 1`, but it
is not reset when a new block is retrieved.  This means the implemen-
tation may start looking at later and later positions in each successive
block and miss occurrences of the pattern at the beginning.  E.g.,
consider a HTTP packet held in a non-linear skb, where the HTTP request
line occurs in the second block:

  [... 52 bytes of packet headers ...]
  GET /bmtest HTTP/1.1\r\nHost: www.example.com\r\n\r\n

and the pattern is "GET /bmtest".

Once the first block comprising the packet headers has been examined,
`shift` will be pointing to somewhere near the end of the block, and so
when the second block is examined the request line at the beginning will
be missed.

Reinitialize the variable for each new block.

Fixes: 8082e4ed0a ("[LIB]: Boyer-Moore extension for textsearch infrastructure strike #2")
Link: https://bugzilla.netfilter.org/show_bug.cgi?id=1390
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-11 19:39:31 +02:00
..
842
crypto crypto: lib/blake2s - Split up test function to halve stack usage 2022-12-30 22:56:27 +08:00
dim linux/dim: Do nothing if no time delta between samples 2023-05-24 17:29:58 +01:00
fonts lib/fonts: fix undefined behavior in bit shift for get_default_font 2022-11-18 13:55:09 -08:00
kunit kunit: fix bug in the order of lines in debugfs logs 2023-05-11 23:16:56 +09:00
livepatch
lz4
lzo
math math64: favor kernel-doc from header files 2022-11-21 14:30:53 -07:00
mpi lib/mpi: Fix buffer overrun when SG is too long 2023-01-06 17:15:46 +08:00
pldmfw
raid6 for-6.2/block-2022-12-08 2022-12-13 10:43:59 -08:00
reed_solomon treewide: use get_random_u32_below() instead of deprecated function 2022-11-18 02:15:15 +01:00
test_fortify
vdso lib/vdso: use "grep -E" instead of "egrep" 2022-11-23 19:50:15 +01:00
xz
zlib_deflate lib/zlib: DFLTCC deflate does not write all available bits for Z_NO_FLUSH 2023-02-27 17:00:14 -08:00
zlib_dfltcc lib/zlib: remove redundation assignement of avail_in dfltcc_gdht() 2023-02-02 22:50:10 -08:00
zlib_inflate lib/zlib: Split deflate and inflate states for DFLTCC 2023-02-02 22:50:09 -08:00
zstd zstd: Fix definition of assert() 2023-03-06 15:54:54 -08:00
.gitignore
Kconfig iommufd for 6.2 2022-12-14 09:15:43 -08:00
Kconfig.debug lib/Kconfig.debug: correct help info of LOCKDEP_STACK_TRACE_HASH_BITS 2023-03-28 15:24:31 -07:00
Kconfig.kasan kasan: treat meminstrinsic as builtins in uninstrumented files 2023-03-02 21:54:22 -08:00
Kconfig.kcsan Kernel concurrency sanitizer (KCSAN) updates for v6.3 2023-02-25 13:02:20 -08:00
Kconfig.kfence
Kconfig.kgdb parisc: Convert PDC console to an early console 2022-10-11 12:01:24 +02:00
Kconfig.kmsan kmsan: make sure PREEMPT_RT is off 2022-11-08 15:57:24 -08:00
Kconfig.ubsan
Makefile kunit: Fix 'hooks.o' build by recursing into kunit 2023-02-27 14:49:03 -08:00
argv_split.c
ashldi3.c
ashrdi3.c
asn1_decoder.c
asn1_encoder.c
assoc_array.c
atomic64.c
atomic64_test.c
audit.c
base64.c
bcd.c
bch.c
bitfield_kunit.c
bitmap.c lib/bitmap: remove bitmap_ord_to_pos 2022-09-26 12:19:12 -07:00
bitrev.c
bootconfig-data.S
bootconfig.c
bsearch.c
btree.c
bucket_locks.c
bug.c cpuidle: lib/bug: Disable rcu_is_watching() during WARN/BUG 2023-01-31 15:01:45 +01:00
build_OID_registry
buildid.c
bust_spinlocks.c kernel/panic: Drop unblank_screen call 2022-09-01 16:55:35 +02:00
check_signature.c
checksum.c
clz_ctz.c
clz_tab.c
cmdline.c lib/cmdline: avoid page fault in next_arg 2022-09-11 21:55:06 -07:00
cmdline_kunit.c treewide: use get_random_{u8,u16}() when possible, part 1 2022-10-11 17:42:58 -06:00
cmpdi2.c
compat_audit.c
cpu_rmap.c lib: cpu_rmap: Fix potential use-after-free in irq_cpu_rmap_release() 2023-06-14 11:16:51 +02:00
cpumask.c lib/cpumask: update comment for cpumask_local_spread() 2023-02-07 18:20:00 -08:00
cpumask_kunit.c cpumask: re-introduce constant-sized cpumask optimizations 2023-03-05 14:30:34 -08:00
crc-ccitt.c
crc-itu-t.c
crc-t10dif.c
crc4.c
crc7.c
crc8.c
crc16.c
crc32.c
crc32defs.h
crc32test.c
crc64-rocksoft.c
crc64.c
ctype.c
debug_info.c
debug_locks.c
debugobjects.c debugobjects: Don't wake up kswapd from fill_pool() 2023-05-30 14:17:24 +01:00
dec_and_lock.c perf: Fix perf_event_pmu_context serialization 2023-01-31 20:37:18 +01:00
decompress.c
decompress_bunzip2.c
decompress_inflate.c
decompress_unlz4.c
decompress_unlzma.c
decompress_unlzo.c
decompress_unxz.c
decompress_unzstd.c
devmem_is_allowed.c
devres.c devres: remove devm_ioremap_np 2022-09-01 18:04:43 +02:00
dhry.h lib: add Dhrystone benchmark test 2023-02-02 22:50:01 -08:00
dhry_1.c lib: add Dhrystone benchmark test 2023-02-02 22:50:01 -08:00
dhry_2.c lib: add Dhrystone benchmark test 2023-02-02 22:50:01 -08:00
dhry_run.c lib: dhry: fix unstable smp_processor_id(_) usage 2023-03-23 17:18:35 -07:00
digsig.c
dump_stack.c
dynamic_debug.c dyndbg: add drm.debug style (drm/parameters/debug) bitmap support 2022-09-07 17:04:49 +02:00
dynamic_queue_limits.c
earlycpio.c lib: move from strlcpy with unused retval to strscpy 2022-09-11 21:55:10 -07:00
errname.c printf: fix errname.c list 2023-02-15 15:44:43 +01:00
error-inject.c error-injection: remove EI_ETYPE_NONE 2023-02-02 22:50:00 -08:00
errseq.c
extable.c
fault-inject-usercopy.c
fault-inject.c fault-injection: make stacktrace filter works as expected 2022-12-15 16:40:44 -08:00
fdt.c
fdt_addresses.c
fdt_empty_tree.c
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
find_bit.c cpumask: introduce for_each_cpu_or 2023-03-19 10:02:04 -07:00
find_bit_benchmark.c treewide: use get_random_u32_below() instead of deprecated function 2022-11-18 02:15:15 +01:00
flex_proportions.c flex_proportions: Disable preemption entering the write section. 2022-09-19 14:35:08 +02:00
fortify_kunit.c kunit/fortify: Validate __alloc_size attribute results 2022-11-22 21:08:28 -08:00
gen_crc32table.c
gen_crc64table.c
genalloc.c lib/genalloc: use try_cmpxchg in {set,clear}_bits_ll 2023-02-02 22:50:05 -08:00
generic-radix-tree.c
glob.c
globtest.c
group_cpus.c genirq/affinity: Only build SMP-only helper functions on SMP kernels 2023-01-18 12:16:47 +01:00
hashtable_test.c lib/hashtable_test.c: add test for the hashtable structure 2023-02-08 14:28:17 -07:00
hexdump.c
hweight.c
idr.c
inflate.c
interval_tree.c interval-tree: Add a utility to iterate over spans in an interval tree 2022-11-29 16:34:15 -04:00
interval_tree_test.c
iomap.c kmsan: add iomap support 2022-10-03 14:03:21 -07:00
iomap_copy.c
iommu-helper.c
iov_iter.c 46 fs/cifs (smb3 client) changesets, 37 in fs/cifs and 9 for related helper functions and cleanup outside from Dave Howells and Willy 2023-02-22 17:12:44 -08:00
irq_poll.c
irq_regs.c
is_signed_type_kunit.c lib: assume char is unsigned 2022-11-19 00:56:15 +01:00
is_single_threaded.c
kasprintf.c
kfifo.c
klist.c
kobject.c kobject: make dynamic_kobj_ktype and kset_ktype const 2023-02-08 13:34:20 +01:00
kobject_uevent.c
kstrtox.c
kstrtox.h
libcrc32c.c
linear_ranges.c
list-test.c
list_debug.c
list_sort.c
llist.c llist: avoid extra memory read in llist_add_batch 2022-11-18 13:55:06 -08:00
locking-selftest-hardirq.h
locking-selftest-mutex.h
locking-selftest-rlock-hardirq.h
locking-selftest-rlock-softirq.h
locking-selftest-rlock.h
locking-selftest-rsem.h
locking-selftest-rtmutex.h
locking-selftest-softirq.h
locking-selftest-spin-hardirq.h
locking-selftest-spin-softirq.h
locking-selftest-spin.h
locking-selftest-wlock-hardirq.h
locking-selftest-wlock-softirq.h
locking-selftest-wlock.h
locking-selftest-wsem.h
locking-selftest.c
lockref.c lockref: stop doing cpu_relax in the cmpxchg loop 2023-01-13 14:35:38 -06:00
logic_iomem.c
logic_pio.c
lru_cache.c lru_cache: remove unused lc_private, lc_set, lc_index_of 2022-11-22 19:38:39 -07:00
lshrdi3.c
maple_tree.c maple_tree: fix potential out-of-bounds access in mas_wr_end_piv() 2023-07-01 13:14:44 +02:00
memcat_p.c
memcpy_kunit.c kunit: memcpy: Split slow memcpy tests into MEMCPY_SLOW_KUNIT_TEST 2023-01-25 12:24:40 -08:00
memory-notifier-error-inject.c
memregion.c
memweight.c
muldi3.c
net_utils.c mac_pton: Don't access memory over expected length 2022-11-09 19:28:02 -08:00
netdev-notifier-error-inject.c
nlattr.c netlink: prevent potential spectre v1 gadgets 2023-01-20 17:52:32 -08:00
nmi_backtrace.c x86/nmi: Print reasons why backtrace NMIs are ignored 2023-01-19 15:55:12 -08:00
notifier-error-inject.c lib/notifier-error-inject: fix error when writing -errno to debugfs file 2022-11-30 16:13:16 -08:00
notifier-error-inject.h
objagg.c
of-reconfig-notifier-error-inject.c
oid_registry.c lib/oid_registry.c: remove redundant assignment to variable num 2022-11-18 13:55:06 -08:00
once.c once: rename _SLOW to _SLEEPABLE 2022-10-03 17:34:32 -07:00
overflow_kunit.c overflow: Introduce overflows_type() and castable_to_type() 2022-11-02 12:39:27 -07:00
packing.c lib: packing: replace bit_reverse() with bitrev8() 2022-12-12 15:06:30 -08:00
parman.c
parser.c lib: parser: update documentation for match_NUMBER functions 2023-03-02 21:54:22 -08:00
pci_iomap.c
percpu-refcount.c percpu-refcount: Use call_rcu_hurry() for atomic switch 2022-11-30 13:16:40 -08:00
percpu_counter.c pcpcntr: remove percpu_counter_sum_all() 2023-03-19 10:02:04 -07:00
percpu_test.c
plist.c
pm-notifier-error-inject.c
polynomial.c
radix-tree.c lib/radix-tree.c: fix uninitialized variable compilation warning 2022-11-30 16:13:17 -08:00
random32.c treewide: use get_random_bytes() when possible 2022-10-11 17:42:58 -06:00
ratelimit.c ratelimit: Fix data-races in ___ratelimit(). 2022-08-24 13:46:57 +01:00
rbtree.c
rbtree_test.c
ref_tracker.c
refcount.c
rhashtable.c rhashtable: Allow rhashtable to be used from irq-safe contexts 2022-12-09 10:42:56 +00:00
sbitmap.c sbitmap: correct wake_batch recalculation to avoid potential IO hung 2023-01-29 20:03:01 -07:00
scatterlist.c lib/scatterlist: Fix to calculate the last_pg properly 2023-01-16 12:08:31 -04:00
seq_buf.c
sg_pool.c lib/sg_pool: change module_init(sg_pool_init) to subsys_initcall 2022-09-23 16:46:19 +02:00
sg_split.c
show_mem.c mm: reduce noise in show_mem for lowmem allocations 2022-09-26 19:46:29 -07:00
siphash.c
siphash_kunit.c siphash: Convert selftest to KUnit 2022-11-01 10:04:52 -07:00
slub_kunit.c linux-kselftest-kunit-next-6.2-rc1 2022-12-12 16:42:57 -08:00
smp_processor_id.c
sort.c
stackdepot.c lib/stackdepot: move documentation comments to stackdepot.h 2023-02-16 20:43:52 -08:00
stackinit_kunit.c kernel/range: Uplevel the cxl subsystem's range_contains() helper 2023-02-10 17:32:37 -08:00
stmp_device.c
string.c lib/string: Use strchr() in strpbrk() 2023-01-27 11:42:57 -08:00
string_helpers.c lib/string_helpers: Introduce parse_int_array_user() 2022-09-05 14:51:46 +01:00
strncpy_from_user.c
strnlen_user.c
strscpy_kunit.c fortify: Short-circuit known-safe calls to strscpy() 2022-11-01 10:04:52 -07:00
syscall.c
test-kstrtox.c
test-string_helpers.c treewide: use get_random_u32_below() instead of deprecated function 2022-11-18 02:15:15 +01:00
test_bitmap.c lib/bitmap: add tests for for_each() loops 2022-10-01 10:22:58 -07:00
test_bitops.c
test_bits.c
test_blackhole_dev.c
test_bpf.c net: remove skb->vlan_present 2022-11-11 18:18:05 -08:00
test_debug_virtual.c
test_dynamic_debug.c dyndbg: test DECLARE_DYNDBG_CLASSMAP, sysfs nodes 2022-09-07 17:04:49 +02:00
test_firmware.c test_firmware: fix the memory leak of the allocated firmware buffer 2023-06-09 10:48:23 +02:00
test_fprobe.c treewide: use get_random_u32_{above,below}() instead of manual loop 2022-11-18 02:15:22 +01:00
test_fpu.c
test_free_pages.c
test_hash.c
test_hexdump.c treewide: use get_random_u32_inclusive() when possible 2022-11-18 02:18:02 +01:00
test_hmm.c hmm-tests: add test for migrate_device_range() 2022-10-12 18:51:50 -07:00
test_hmm_uapi.h hmm-tests: add test for migrate_device_range() 2022-10-12 18:51:50 -07:00
test_ida.c
test_kmod.c test_kmod: stop kernel-doc warnings 2023-01-25 14:07:21 -08:00
test_kprobes.c test_kprobes: Add recursed kprobe test case 2023-02-21 08:52:42 +09:00
test_linear_ranges.c lib/test_linear_ranges: Use LINEAR_RANGE() 2022-11-16 13:32:32 +00:00
test_list_sort.c treewide: use get_random_u32_below() instead of deprecated function 2022-11-18 02:15:15 +01:00
test_lockup.c
test_maple_tree.c test_maple_tree: add more testing for mas_empty_area() 2023-03-23 17:18:32 -07:00
test_memcat_p.c
test_meminit.c lib/test_meminit: add checks for the allocation functions 2022-10-12 18:51:49 -07:00
test_min_heap.c treewide: use get_random_u32() when possible 2022-10-11 17:42:58 -06:00
test_module.c
test_objagg.c treewide: use get_random_bytes() when possible 2022-10-11 17:42:58 -06:00
test_parman.c
test_printf.c mm: discard __GFP_ATOMIC 2023-02-02 22:33:13 -08:00
test_ref_tracker.c
test_rhashtable.c Networking changes for 6.2. 2022-12-13 15:47:48 -08:00
test_scanf.c
test_sort.c
test_static_key_base.c
test_static_keys.c
test_string.c
test_sysctl.c testing: use the copyleft-next-0.3.1 SPDX tag 2022-11-08 15:44:02 +01:00
test_ubsan.c
test_user_copy.c
test_uuid.c
test_vmalloc.c lib/test_vmalloc.c: add parameter use_huge for fix_size_alloc_test 2023-01-18 17:12:41 -08:00
test_xarray.c
textsearch.c
timerqueue.c
trace_readwrite.c asm-generic/io: Add _RET_IP_ to MMIO trace for more accurate debug info 2022-11-21 22:02:10 +01:00
ts_bm.c lib/ts_bm: reset initial match offset for every block of text 2023-07-11 19:39:31 +02:00
ts_fsm.c
ts_kmp.c
ubsan.c hardening updates for v6.3-rc1 2023-02-21 11:07:23 -08:00
ubsan.h arm64: Support Clang UBSAN trap codes for better reporting 2023-02-08 15:26:58 -08:00
ucmpdi2.c
ucs2_string.c
usercopy.c uaccess: Add speculation barrier to copy_from_user() 2023-02-21 14:45:22 -08:00
uuid.c treewide: use get_random_bytes() when possible 2022-10-11 17:42:58 -06:00
vsprintf.c Random number generator updates for Linux 6.2-rc1. 2022-12-12 16:22:22 -08:00
win_minmax.c lib/win_minmax: use /* notation for regular comments 2023-01-11 16:14:21 -08:00
xarray.c
xxhash.c