CVE-2022-36946

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

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

8.9% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-10-25)

Published

2022-07-27

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• debian:debian_linux
• linux:linux_kernel
• netapp:active_iq_unified_manager
• netapp:hci_compute_node
• netapp:solidfire_\&_hci_management_node
• netapp:solidfire_\&_hci_storage_node
• netapp:solidfire_enterprise_sds

References

• 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
• https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
• https://marc.info/?l=netfilter-devel&m=165883202007292&w=2
• https://security.netapp.com/advisory/ntap-20220901-0007/

Check your stackJSON