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9c443ac455
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> |
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| .. | ||
| types | ||
| errno.h | ||
| fcntl.h | ||
| ioctls.h | ||
| local_lim.h | ||
| param.h | ||
| posix_opt.h | ||
| signum-arch.h | ||
| socket.h | ||
| stat.h | ||
| statfs.h | ||
| statvfs.h | ||
| sysmacros.h | ||
| timesize.h | ||
| typesizes.h | ||
| unistd_ext.h | ||