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Import priority bug fixes from the glibc upstream 2.34 release branch.
The glibc upstream 2.34 branch is under active bug fix work and those fixes improve the quality of RHEL9.
Ensure that the following commit is backported to upstream release branch and pulled into RHEL-9.2:
commit 9c443ac4559a47ed99859bd80d14dc4b6dd220a1
Author: Arjun Shankar <arjun>
Date: Tue Aug 2 11:10:25 2022 +0200
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>
I expect that there will be a conflict in the import, which can be resolved by picking the original commit from the master branch instead. I filed bug 2129005 to track this.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (glibc bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2023:2481