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.
Fix
Public exploits 2
- Pwnzer0tt1/CVE-2022-36946 PoC on GitHub
- Satheesh575555/linux-4.19.72_CVE-2022-36946 PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Patch, vendor advisory and mitigation references on NVD 2
- https://marc.info/?l=netfilter-devel&m=165883202007292&w=2 Mailing List, Patch, Third Party Advisory
- https://marc.info/?l=netfilter-devel&m=165883202007292&w=2 Mailing List, Patch, Third Party Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.5 · linux, debian, netappNVD modified 2026-10-14 18:17
Affected (CPE criteria) 8
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:*cpe:2.3:a:netapp:solidfire_\&_hci_storage_node:-:*:*:*:*:*:*:*cpe:2.3:a:netapp:solidfire_enterprise_sds:-:*:*:*:*:*:*:*cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:*
References 16
- 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 List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html Mailing List, Third Party Advisory
- https://marc.info/?l=netfilter-devel&m=165883202007292&w=2 Mailing List, Patch, Third 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 List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html Mailing List, Third Party Advisory
- https://marc.info/?l=netfilter-devel&m=165883202007292&w=2 Mailing List, Patch, Third 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://cert-portal.siemens.com/productcert/html/ssa-419740.html
- https://cert-portal.siemens.com/productcert/html/ssa-561322.html
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html
- https://cert-portal.siemens.com/productcert/html/ssa-942865.html