{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-40170","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T07:20:57.176Z","datePublished":"2025-11-12T10:46:52.014Z","dateUpdated":"2026-05-11T21:44:07.195Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:44:07.195Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: use dst_dev_rcu() in sk_setup_caps()\n\nUse RCU to protect accesses to dst->dev from sk_setup_caps()\nand sk_dst_gso_max_size().\n\nAlso use dst_dev_rcu() in ip6_dst_mtu_maybe_forward(),\nand ip_dst_mtu_maybe_forward().\n\nip4_dst_hoplimit() can use dst_dev_net_rcu()."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/net/ip.h","include/net/ip6_route.h","include/net/route.h","net/core/sock.c"],"versions":[{"version":"4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36","lessThan":"5d1be493d1110c9e720b4c51a6e587bb2fb4ac12","status":"affected","versionType":"git"},{"version":"4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36","lessThan":"a805729c0091073d8f0415cfa96c7acd1bc17a48","status":"affected","versionType":"git"},{"version":"4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36","lessThan":"99a2ace61b211b0be861b07fbaa062fca4b58879","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/net/ip.h","include/net/ip6_route.h","include/net/route.h","net/core/sock.c"],"versions":[{"version":"4.13","status":"affected"},{"version":"0","lessThan":"4.13","status":"unaffected","versionType":"semver"},{"version":"6.12.64","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.17.3","lessThanOrEqual":"6.17.*","status":"unaffected","versionType":"semver"},{"version":"6.18","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":"4.13","versionEndExcluding":"6.12.64"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"6.17.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"6.18"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/5d1be493d1110c9e720b4c51a6e587bb2fb4ac12"},{"url":"https://git.kernel.org/stable/c/a805729c0091073d8f0415cfa96c7acd1bc17a48"},{"url":"https://git.kernel.org/stable/c/99a2ace61b211b0be861b07fbaa062fca4b58879"}],"title":"net: use dst_dev_rcu() in sk_setup_caps()","x_generator":{"engine":"bippy-1.2.0"}}}}