Arjun Shankar 68507377f2 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 18:59:26 +02:00
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alpha
arm
bsd	login: Hidden prototypes for _getpt, __ptsname_r, grantpt, unlockpt	2021-06-30 07:28:12 +02:00
i386
inet
mips
powerpc
sh
sysv/linux	socket: Check lengths before advancing pointer in CMSG_NXTHDR	2022-08-22 18:59:26 +02:00
x86_64
confstr.h
get_child_max.c
getlogin_r.c
getlogin.c
getpagesize.c
grantpt.c	login: Hidden prototypes for _getpt, __ptsname_r, grantpt, unlockpt	2021-06-30 07:28:12 +02:00
ifreq.c
Implies
make-syscalls.sh
Makefile
s-proto-cancel.S
s-proto.S
setxid.h
sockatmark.c
syscall-template.S
syscall.S
syscalls.list	misc: Add time64 alias for ioctl	2021-07-21 11:58:09 +02:00
sysdep.h	Linux: Explicitly disable cancellation checking in the dynamic loader	2021-05-10 10:31:41 +02:00