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Vulnerability record · CVE-2022-36946 · published 27 July 2022

CVE-2022-36946: Linux kernel vulnerability

Linux · Linux Kernel

nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an skb_pull can encounter a negative skb->len.

7.5 CVSS 3.1 High EPSS 7.6% · top 5.6%
7.5CVSS 3.1 base score
7.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
7Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

Description

nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an skb_pull can encounter a negative skb->len.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

7 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99a63d36cb3ed5ca3aa6fcb64cffbeaf3b0fb164
https://lists.debian.org/debian-lts-announce/2022/09/msg00011.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html Mailing ListThird Party Advisory
https://marc.info/?l=netfilter-devel&m=165883202007292&w=2 Mailing ListPatchThird Party Advisory
https://security.netapp.com/advisory/ntap-20220901-0007/ Third Party Advisory
https://www.debian.org/security/2022/dsa-5207 Third Party Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99a63d36cb3ed5ca3aa6fcb64cffbeaf3b0fb164
https://lists.debian.org/debian-lts-announce/2022/09/msg00011.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html Mailing ListThird Party Advisory
https://marc.info/?l=netfilter-devel&m=165883202007292&w=2 Mailing ListPatchThird Party Advisory
https://security.netapp.com/advisory/ntap-20220901-0007/ Third Party Advisory
https://www.debian.org/security/2022/dsa-5207 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2022-36946), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.