Unrated severityNVD Advisory· Published Feb 26, 2025· Updated May 4, 2025
netfilter: conntrack: re-fetch conntrack after insertion
CVE-2022-49561
Description
In the Linux kernel, the following vulnerability has been resolved:
netfilter: conntrack: re-fetch conntrack after insertion
In case the conntrack is clashing, insertion can free skb->_nfct and set skb->_nfct to the already-confirmed entry.
This wasn't found before because the conntrack entry and the extension space used to free'd after an rcu grace period, plus the race needs events enabled to trigger.
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_68&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
< 4.12.14-122.258.1+ 7 more
- (no CPE)range: < 4.12.14-122.258.1
- (no CPE)range: < 4.12.14-122.258.1
- (no CPE)range: < 4.12.14-122.258.1
- (no CPE)range: < 4.12.14-122.258.1
- (no CPE)range: < 4.12.14-122.258.1
- (no CPE)range: < 4.12.14-122.258.1
- (no CPE)range: < 4.12.14-122.258.1
- (no CPE)range: < 1-8.3.1
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
8- git.kernel.org/stable/c/01989d7eebb61c99bd4b88ebc8e261bd2f02caedmitre
- git.kernel.org/stable/c/04e4a11dc723c52db7a36dc58f0d69ce6426f8f0mitre
- git.kernel.org/stable/c/04f9e9104c969d8ce10a4a43634f641ed082092dmitre
- git.kernel.org/stable/c/56b14ecec97f39118bf85c9ac2438c5a949509edmitre
- git.kernel.org/stable/c/91a36ec160ec1a0c8f5352b772dffcbb0b6023e3mitre
- git.kernel.org/stable/c/92a999d1963eed0df666284e20055136ceabd12fmitre
- git.kernel.org/stable/c/b16bb373988da3ceb0308381634117e18b6ec60dmitre
- git.kernel.org/stable/c/e97222b785e70e8973281666d709baad6523d8afmitre
News mentions
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