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Status published
High
CVE-2022-1055
Use after Free in tc_new_tfilter allowing for privilege escalation in Linux Kernel
Vulnerability Description
A use-after-free exists in the Linux Kernel in tc_new_tfilter that could allow a local attacker to gain privilege escalation. The exploit requires unprivileged user namespaces. We recommend upgrading past commit 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5
- https://syzkaller.appspot.com/bug?id=2212474c958978ab86525fe6832ac8102c309ffc
- https://kernel.dance/#04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5
- https://security.netapp.com/advisory/ntap-20220506-0007/
- http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html
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Affected Vendor
Linux
View all reports →Affected Software
Kernel
Vulnerable Versions:
0, 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5
Timeline
Official Publish:
March 29th, 2022
Last Modified:
August 2nd, 2024
Added to House:
July 21st, 2026