Description
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The function nft_pipapo_walk did not skip inactive elements during set walk which could lead double deactivations of PIPAPO (Pile Packet Policies) elements, leading to use-after-free. We recommend upgrading past commit 317eb9685095678f2c9f5a8189de698c5354316a.
Affected products
linux: linux kernel
References10
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/comm… Mailing ListPatch
- kernel.dance/317eb9685095678f2c9f5a8189de698c5354316a Patch
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/comm… Mailing ListPatch
- kernel.dance/317eb9685095678f2c9f5a8189de698c5354316a Patch
- packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security…
- www.openwall.com/lists/oss-security/2023/12/22/13
- www.openwall.com/lists/oss-security/2023/12/22/6
- lists.debian.org/debian-lts-announce/2024/01/msg00005.html
- packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security…
- www.openwall.com/lists/oss-security/2023/12/22/13
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 27 · as of 5 November 2026
- CWE
- CWE-416
Could this be exploited in your environment?
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