glibc/sysdeps
Arjun Shankar 9c443ac455 socket: Check lengths before advancing pointer in CMSG_NXTHDR
The inline and library functions that the CMSG_NXTHDR macro may expand
to increment the pointer to the header before checking the stride of
the increment against available space.  Since C only allows incrementing
pointers to one past the end of an array, the increment must be done
after a length check.  This commit fixes that and includes a regression
test for CMSG_FIRSTHDR and CMSG_NXTHDR.

The Linux, Hurd, and generic headers are all changed.

Tested on Linux on armv7hl, i686, x86_64, aarch64, ppc64le, and s390x.

[BZ #28846]

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
2022-08-02 11:10:25 +02:00
..
aarch64 arc4random: simplify design for better safety 2022-07-27 08:58:27 -03:00
alpha alpha: Remove _dl_skip_args usage 2022-05-30 16:32:22 -03:00
arc elf: Remove ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA 2022-06-15 11:29:55 -07:00
arm Add bounds check to __libc_ifunc_impl_list 2022-06-10 17:13:29 +01:00
csky csky: Remove _dl_skip_args usage 2022-05-30 16:32:33 -03:00
generic arc4random: simplify design for better safety 2022-07-27 08:58:27 -03:00
gnu Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
hppa hppa: Remove _dl_skip_args usage (BZ# 29165) 2022-05-30 16:32:35 -03:00
htl htl: Fix initializing the key lock 2022-02-14 19:29:02 +01:00
hurd hurd: Fix pthread_kill on exiting/ted thread 2022-01-15 15:11:54 +01:00
i386 i386: Remove -Wa,-mtune=i686 2022-07-12 11:14:32 -07:00
ia64 grep: egrep -> grep -E, fgrep -> grep -F 2022-06-05 12:09:02 -07:00
ieee754 i686: Use generic sincosf implementation for SSE2 version 2022-06-01 10:47:44 -03:00
loongarch LoongArch: Hard Float Support 2022-07-26 12:35:12 -03:00
m68k m68k: optimize RTLD_START 2022-06-25 00:22:02 +02:00
mach socket: Check lengths before advancing pointer in CMSG_NXTHDR 2022-08-02 11:10:25 +02:00
microblaze microblaze: Remove _dl_skip_args usage 2022-05-30 16:33:14 -03:00
mips mips: Remove _dl_skip_args usage 2022-05-30 16:33:16 -03:00
nios2 Remove remnant reference to ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA 2022-06-15 13:02:17 -07:00
nptl arc4random: simplify design for better safety 2022-07-27 08:58:27 -03:00
or1k elf: Replace PI_STATIC_AND_HIDDEN with opposite HIDDEN_VAR_NEEDS_DYNAMIC_RELOC 2022-04-26 09:26:22 -07:00
posix Refactor internal-signals.h 2022-06-30 14:56:21 -03:00
powerpc arc4random: simplify design for better safety 2022-07-27 08:58:27 -03:00
pthread nptl: Fix __libc_cleanup_pop_restore asynchronous restore (BZ#29214) 2022-06-08 09:23:02 -03:00
riscv riscv: Update rv64 libm test ulps 2022-07-27 10:50:20 -03:00
s390 arc4random: simplify design for better safety 2022-07-27 08:58:27 -03:00
sh sh: Remove _dl_skip_args usage 2022-05-30 16:33:28 -03:00
sparc Add bounds check to __libc_ifunc_impl_list 2022-06-10 17:13:29 +01:00
unix socket: Check lengths before advancing pointer in CMSG_NXTHDR 2022-08-02 11:10:25 +02:00
wordsize-32 Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
wordsize-64 Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
x86 x86: Add support to build strcmp/strlen/strchr with explicit ISA level 2022-07-16 03:07:59 -07:00
x86_64 arc4random: simplify design for better safety 2022-07-27 08:58:27 -03:00