CVE-2022-48643
- Source
- https://cve.org/CVERecord?id=CVE-2022-48643
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-48643.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-48643
- Downstream
- Published
- 2024-04-28T13:00:03.181Z
- Modified
- 2026-05-15T11:54:06.369913899Z
- Summary
- netfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nftables: fix nftcountersenabled underflow at nftables_addchain()
syzbot is reporting underflow of nftcountersenabled counter at nftablesaddchain() [1], for commit 43eb8949cfdffa76 ("netfilter: nftables: do not leave chain stats enabled on error") missed that nftableschaindestroy() after nftbasechaininit() in the error path of nftablesaddchain() decrements the counter because nftbasechaininit() makes nftisbasechain() return true by setting NFTCHAIN_BASE flag.
Increment the counter immediately after returning from nftbasechaininit().
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48643.json" }- References
-
- https://git.kernel.org/stable/c/710e3f526bd23a0d33435dedc52c3144de284378
- https://git.kernel.org/stable/c/8bcad2a931313aeba076b76922d5813ef97d0a91
- https://git.kernel.org/stable/c/91aa52652f4b37089aff3cb53e83049d826fef6d
- https://git.kernel.org/stable/c/921ebde3c0d22c8cba74ce8eb3cc4626abff1ccd
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48643.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-48643
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git