{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53643","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-10-07T15:16:59.658Z","datePublished":"2025-10-07T15:19:42.374Z","dateUpdated":"2026-05-11T19:49:07.463Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:49:07.463Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-tcp: don't access released socket during error recovery\n\nWhile the error recovery work is temporarily failing reconnect attempts,\nrunning the 'nvme list' command causes a kernel NULL pointer dereference\nby calling getsockname() with a released socket.\n\nDuring error recovery work, the nvme tcp socket is released and a new one\ncreated, so it is not safe to access the socket without proper check."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/host/tcp.c"],"versions":[{"version":"02c57a82c0081141abc19150beab48ef47f97f18","lessThan":"fe2d9e54165dadaa0d0cc3355c0be9c3e129fa0d","status":"affected","versionType":"git"},{"version":"02c57a82c0081141abc19150beab48ef47f97f18","lessThan":"d82f762db4776fa11de88018f0f5de2d5db72a72","status":"affected","versionType":"git"},{"version":"02c57a82c0081141abc19150beab48ef47f97f18","lessThan":"76d54bf20cdcc1ed7569a89885e09636e9a8d71d","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/host/tcp.c"],"versions":[{"version":"6.1","status":"affected"},{"version":"0","lessThan":"6.1","status":"unaffected","versionType":"semver"},{"version":"6.1.18","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.2.5","lessThanOrEqual":"6.2.*","status":"unaffected","versionType":"semver"},{"version":"6.3","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":"6.1","versionEndExcluding":"6.1.18"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.2.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/fe2d9e54165dadaa0d0cc3355c0be9c3e129fa0d"},{"url":"https://git.kernel.org/stable/c/d82f762db4776fa11de88018f0f5de2d5db72a72"},{"url":"https://git.kernel.org/stable/c/76d54bf20cdcc1ed7569a89885e09636e9a8d71d"}],"title":"nvme-tcp: don't access released socket during error recovery","x_generator":{"engine":"bippy-1.2.0"}}}}