CVE-2022-48643
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain()
syzbot is reporting underflow of nft_counters_enabled counter at nf_tables_addchain() [1], for commit 43eb8949cfdffa76 ("netfilter: nf_tables: do not leave chain stats enabled on error") missed that nf_tables_chain_destroy() after nft_basechain_init() in the error path of nf_tables_addchain() decrements the counter because nft_basechain_init() makes nft_is_base_chain() return true by setting NFT_CHAIN_BASE flag.
Increment the counter immediately after returning from nft_basechain_init().
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | c907dfe4eaca9665694a0340de1458a093abe354 < 710e3f526bd23a0d33435dedc52c3144de284378 | affected |
| Linux | Linux | 6d7ddee503951641f3ec6f0e3269446970bbcdab < 91aa52652f4b37089aff3cb53e83049d826fef6d | affected |
| Linux | Linux | 98a621ef45e3605c7487f7fa6fec7df94697d6a2 < 8bcad2a931313aeba076b76922d5813ef97d0a91 | affected |
| Linux | Linux | 43eb8949cfdffa764b92bc6c54b87cbe5b0003fe < 921ebde3c0d22c8cba74ce8eb3cc4626abff1ccd | affected |
| Linux | Linux | 5.10.140 < 5.10.146 | affected |
| Linux | Linux | 5.15.64 < 5.15.71 | affected |
| Linux | Linux | 5.19.6 < 5.19.12 | affected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
CVE Program Container
Additional References
- https://git.kernel.org/stable/c/710e3f526bd23a0d33435dedc52c3144de284378
- https://git.kernel.org/stable/c/91aa52652f4b37089aff3cb53e83049d826fef6d
- https://git.kernel.org/stable/c/8bcad2a931313aeba076b76922d5813ef97d0a91
- https://git.kernel.org/stable/c/921ebde3c0d22c8cba74ce8eb3cc4626abff1ccd
References
- https://git.kernel.org/stable/c/710e3f526bd23a0d33435dedc52c3144de284378
- https://git.kernel.org/stable/c/91aa52652f4b37089aff3cb53e83049d826fef6d
- https://git.kernel.org/stable/c/8bcad2a931313aeba076b76922d5813ef97d0a91
- https://git.kernel.org/stable/c/921ebde3c0d22c8cba74ce8eb3cc4626abff1ccd
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