{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-42109","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-07-29T15:50:41.176Z","datePublished":"2024-07-30T07:46:04.194Z","dateUpdated":"2025-11-03T22:01:44.106Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T12:57:39.154Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: unconditionally flush pending work before notifier\n\nsyzbot reports:\n\nKASAN: slab-uaf in nft_ctx_update include/net/netfilter/nf_tables.h:1831\nKASAN: slab-uaf in nft_commit_release net/netfilter/nf_tables_api.c:9530\nKASAN: slab-uaf int nf_tables_trans_destroy_work+0x152b/0x1750 net/netfilter/nf_tables_api.c:9597\nRead of size 2 at addr ffff88802b0051c4 by task kworker/1:1/45\n[..]\nWorkqueue: events nf_tables_trans_destroy_work\nCall Trace:\n nft_ctx_update include/net/netfilter/nf_tables.h:1831 [inline]\n nft_commit_release net/netfilter/nf_tables_api.c:9530 [inline]\n nf_tables_trans_destroy_work+0x152b/0x1750 net/netfilter/nf_tables_api.c:9597\n\nProblem is that the notifier does a conditional flush, but its possible\nthat the table-to-be-removed is still referenced by transactions being\nprocessed by the worker, so we need to flush unconditionally.\n\nWe could make the flush_work depend on whether we found a table to delete\nin nf-next to avoid the flush for most cases.\n\nAFAICS this problem is only exposed in nf-next, with\ncommit e169285f8c56 (\"netfilter: nf_tables: do not store nft_ctx in transaction objects\"),\nwith this commit applied there is an unconditional fetch of\ntable->family which is whats triggering the above splat."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/netfilter/nf_tables_api.c"],"versions":[{"version":"f22954f8c58fd5f5489f5980796914e306757e77","lessThan":"3325628cb36b7f216c5716e7b5124d9dc81199e4","status":"affected","versionType":"git"},{"version":"41841b585e53babdfb0fa6fdfa54f6d7c28c1206","lessThan":"4c06c13317b9a08decedcd7aaf706691e336277c","status":"affected","versionType":"git"},{"version":"2c9f0293280e258606e54ed2b96fa71498432eae","lessThan":"55a40406aac555defe9bdd0adec9508116ce7cb1","status":"affected","versionType":"git"},{"version":"2c9f0293280e258606e54ed2b96fa71498432eae","lessThan":"09e650c3a3a7d804430260510534ccbf71c75b2e","status":"affected","versionType":"git"},{"version":"2c9f0293280e258606e54ed2b96fa71498432eae","lessThan":"9f6958ba2e902f9820c594869bd710ba74b7c4c0","status":"affected","versionType":"git"},{"version":"4167aa477abcf62b0dfda51f3513280fa73cd588","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/netfilter/nf_tables_api.c"],"versions":[{"version":"6.5","status":"affected"},{"version":"0","lessThan":"6.5","status":"unaffected","versionType":"semver"},{"version":"5.15.163","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.98","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.39","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.9.9","lessThanOrEqual":"6.9.*","status":"unaffected","versionType":"semver"},{"version":"6.10","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.129","versionEndExcluding":"5.15.163"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.50","versionEndExcluding":"6.1.98"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.6.39"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.9.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4.13"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/3325628cb36b7f216c5716e7b5124d9dc81199e4"},{"url":"https://git.kernel.org/stable/c/4c06c13317b9a08decedcd7aaf706691e336277c"},{"url":"https://git.kernel.org/stable/c/55a40406aac555defe9bdd0adec9508116ce7cb1"},{"url":"https://git.kernel.org/stable/c/09e650c3a3a7d804430260510534ccbf71c75b2e"},{"url":"https://git.kernel.org/stable/c/9f6958ba2e902f9820c594869bd710ba74b7c4c0"}],"title":"netfilter: nf_tables: unconditionally flush pending work before notifier","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/3325628cb36b7f216c5716e7b5124d9dc81199e4","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/4c06c13317b9a08decedcd7aaf706691e336277c","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/55a40406aac555defe9bdd0adec9508116ce7cb1","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/09e650c3a3a7d804430260510534ccbf71c75b2e","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/9f6958ba2e902f9820c594869bd710ba74b7c4c0","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T22:01:44.106Z"}},{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-42109","role":"CISA 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