CVE-2022-48643 (GCVE-0-2022-48643)

Vulnerability from cvelistv5 – Published: 2024-04-28 13:00 – Updated: 2026-05-11 18:44
VLAI
Title
netfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain()
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().
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-17 19:08 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7018 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c907dfe4eaca9665694a0340de1458a093abe354 , < 710e3f526bd23a0d33435dedc52c3144de284378 (git)
Affected: 6d7ddee503951641f3ec6f0e3269446970bbcdab , < 91aa52652f4b37089aff3cb53e83049d826fef6d (git)
Affected: 98a621ef45e3605c7487f7fa6fec7df94697d6a2 , < 8bcad2a931313aeba076b76922d5813ef97d0a91 (git)
Affected: 43eb8949cfdffa764b92bc6c54b87cbe5b0003fe , < 921ebde3c0d22c8cba74ce8eb3cc4626abff1ccd (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.10.140 , < 5.10.146 (semver)
Affected: 5.15.64 , < 5.15.71 (semver)
Affected: 5.19.6 , < 5.19.12 (semver)
guessed Create a notification for this product.
Show details on NVD website
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}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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Vulnerability timeline

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How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

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