Arjun Shankar d13a7a6f10 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> (cherry picked from commit 9c443ac455)		2022-08-22 16:32:13 +02:00
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types	Update copyright dates with scripts/update-copyrights	2022-01-01 11:40:24 -08:00
atomic_wide_counter.h	Update copyright dates with scripts/update-copyrights	2022-01-01 11:40:24 -08:00
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elfclass.h
endian.h
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ioctls.h
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libc-header-start.h	Update copyright dates with scripts/update-copyrights	2022-01-01 11:40:24 -08:00
libm-simd-decl-stubs.h	Update copyright dates with scripts/update-copyrights	2022-01-01 11:40:24 -08:00
link_lavcurrent.h	elf: Issue la_symbind for bind-now (BZ #23734)	2022-02-01 14:49:46 -03:00
link.h
local_lim.h
long-double.h	Update copyright dates with scripts/update-copyrights	2022-01-01 11:40:24 -08:00
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mman_ext.h	linux: Add process_madvise	2022-06-02 15:43:28 -03:00
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posix_opt.h
pthreadtypes.h
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setjmp.h
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sockaddr.h	Update copyright dates with scripts/update-copyrights	2022-01-01 11:40:24 -08:00
socket.h	socket: Check lengths before advancing pointer in CMSG_NXTHDR	2022-08-22 16:32:13 +02:00
ss_flags.h	Update copyright dates with scripts/update-copyrights	2022-01-01 11:40:24 -08:00
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wordsize.h	Define wordsize.h macros everywhere	2016-11-04 09:37:44 -07:00