{"id":"CVE-2022-48643","state":"PUBLISHED","title":"netfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain()\n\nsyzbot is reporting underflow of nft_counters_enabled counter at\nnf_tables_addchain() [1], for commit 43eb8949cfdffa76 (\"netfilter:\nnf_tables: do not leave chain stats enabled on error\") missed that\nnf_tables_chain_destroy() after nft_basechain_init() in the error path of\nnf_tables_addchain() decrements the counter because nft_basechain_init()\nmakes nft_is_base_chain() return true by setting NFT_CHAIN_BASE flag.\n\nIncrement the counter immediately after returning from\nnft_basechain_init().","publishedAt":"2024-04-28T13:00:03.181Z","updatedAt":"2026-05-11T18:44:20.427Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c907dfe4eaca9665694a0340de1458a093abe354","status":"affected","lessThan":"710e3f526bd23a0d33435dedc52c3144de284378","versionType":"git"},{"version":"6d7ddee503951641f3ec6f0e3269446970bbcdab","status":"affected","lessThan":"91aa52652f4b37089aff3cb53e83049d826fef6d","versionType":"git"},{"version":"98a621ef45e3605c7487f7fa6fec7df94697d6a2","status":"affected","lessThan":"8bcad2a931313aeba076b76922d5813ef97d0a91","versionType":"git"},{"version":"43eb8949cfdffa764b92bc6c54b87cbe5b0003fe","status":"affected","lessThan":"921ebde3c0d22c8cba74ce8eb3cc4626abff1ccd","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/netfilter/nf_tables_api.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5.10.140","status":"affected","lessThan":"5.10.146","versionType":"semver"},{"version":"5.15.64","status":"affected","lessThan":"5.15.71","versionType":"semver"},{"version":"5.19.6","status":"affected","lessThan":"5.19.12","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/netfilter/nf_tables_api.c"]}],"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"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/48xxx/CVE-2022-48643.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-48643","state":"PUBLISHED","datePublished":"2024-04-28T13:00:03.181Z","dateUpdated":"2026-05-11T18:44:20.427Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-02-25T13:44:28.316Z"},"containers":{"cna":{"title":"netfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain()\n\nsyzbot is reporting underflow of nft_counters_enabled counter at\nnf_tables_addchain() [1], for commit 43eb8949cfdffa76 (\"netfilter:\nnf_tables: do not leave chain stats enabled on error\") missed that\nnf_tables_chain_destroy() after nft_basechain_init() in the error path of\nnf_tables_addchain() decrements the counter because nft_basechain_init()\nmakes nft_is_base_chain() return true by setting NFT_CHAIN_BASE flag.\n\nIncrement the counter immediately after returning from\nnft_basechain_init()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c907dfe4eaca9665694a0340de1458a093abe354","status":"affected","lessThan":"710e3f526bd23a0d33435dedc52c3144de284378","versionType":"git"},{"version":"6d7ddee503951641f3ec6f0e3269446970bbcdab","status":"affected","lessThan":"91aa52652f4b37089aff3cb53e83049d826fef6d","versionType":"git"},{"version":"98a621ef45e3605c7487f7fa6fec7df94697d6a2","status":"affected","lessThan":"8bcad2a931313aeba076b76922d5813ef97d0a91","versionType":"git"},{"version":"43eb8949cfdffa764b92bc6c54b87cbe5b0003fe","status":"affected","lessThan":"921ebde3c0d22c8cba74ce8eb3cc4626abff1ccd","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/netfilter/nf_tables_api.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5.10.140","status":"affected","lessThan":"5.10.146","versionType":"semver"},{"version":"5.15.64","status":"affected","lessThan":"5.15.71","versionType":"semver"},{"version":"5.19.6","status":"affected","lessThan":"5.19.12","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/netfilter/nf_tables_api.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/710e3f526bd23a0d33435dedc52c3144de284378"},{"url":"https://git.kernel.org/stable/c/91aa52652f4b37089aff3cb53e83049d826fef6d"},{"url":"https://git.kernel.org/stable/c/8bcad2a931313aeba076b76922d5813ef97d0a91"},{"url":"https://git.kernel.org/stable/c/921ebde3c0d22c8cba74ce8eb3cc4626abff1ccd"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T18:44:20.427Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.140","versionEndExcluding":"5.10.146"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.64","versionEndExcluding":"5.15.71"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19.6","versionEndExcluding":"5.19.12"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA 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