Unrated severityNVD Advisory· Published Feb 26, 2025· Updated May 4, 2025
mxser: fix xmit_buf leak in activate when LSR == 0xff
CVE-2022-49191
Description
In the Linux kernel, the following vulnerability has been resolved:
mxser: fix xmit_buf leak in activate when LSR == 0xff
When LSR is 0xff in ->activate() (rather unlike), we return an error. Provided ->shutdown() is not called when ->activate() fails, nothing actually frees the buffer in this case.
Fix this by properly freeing the buffer in a designated label. We jump there also from the "!info->type" if now too.
Affected products
10- osv-coords8 versionspkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_67&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
< 4.12.14-122.255.1+ 7 more
- (no CPE)range: < 4.12.14-122.255.1
- (no CPE)range: < 4.12.14-122.255.1
- (no CPE)range: < 4.12.14-122.255.1
- (no CPE)range: < 4.12.14-122.255.1
- (no CPE)range: < 4.12.14-122.255.1
- (no CPE)range: < 4.12.14-122.255.1
- (no CPE)range: < 4.12.14-122.255.1
- (no CPE)range: < 1-8.5.1
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
9- git.kernel.org/stable/c/125b7c929fc9b1e5eaa344bceb6367dfa6fd3f9dmitre
- git.kernel.org/stable/c/2cd05c38a27bee7fb42aa4d43174d68ac55dac0fmitre
- git.kernel.org/stable/c/376922045009f8ea2d20a8fa3475e95b47c41690mitre
- git.kernel.org/stable/c/685b6d16bf89595310b5d61394c9b97cc9505c7cmitre
- git.kernel.org/stable/c/6c9041b2f90c0eace73106f22350e1d2c98f5edcmitre
- git.kernel.org/stable/c/6dffc2035fbaada60ca8db59e0962e34f760370amitre
- git.kernel.org/stable/c/996291d06851a26678a0fab488b6e1f0677c0576mitre
- git.kernel.org/stable/c/b125b08dbee3611f03f53b71471813ed4ccafcddmitre
- git.kernel.org/stable/c/cd3a4907ee334b40d7aa880c7ab310b154fd5cd4mitre
News mentions
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