{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-54269","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-12-30T12:06:44.518Z","datePublished":"2025-12-30T12:16:00.317Z","dateUpdated":"2026-05-11T19:58:42.478Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:58:42.478Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nSUNRPC: double free xprt_ctxt while still in use\n\nWhen an RPC request is deferred, the rq_xprt_ctxt pointer is moved out\nof the svc_rqst into the svc_deferred_req.\nWhen the deferred request is revisited, the pointer is copied into\nthe new svc_rqst - and also remains in the svc_deferred_req.\n\nIn the (rare?) case that the request is deferred a second time, the old\nsvc_deferred_req is reused - it still has all the correct content.\nHowever in that case the rq_xprt_ctxt pointer is NOT cleared so that\nwhen xpo_release_xprt is called, the ctxt is freed (UDP) or possible\nadded to a free list (RDMA).\nWhen the deferred request is revisited for a second time, it will\nreference this ctxt which may be invalid, and the free the object a\nsecond time which is likely to oops.\n\nSo change svc_defer() to *always* clear rq_xprt_ctxt, and assert that\nthe value is now stored in the svc_deferred_req."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/sunrpc/svc_xprt.c"],"versions":[{"version":"f5e13d700a4d40ccde3d36e383f9247dcb3c1d2d","lessThan":"7851771789e87108a92697194105ef0c9307dc5e","status":"affected","versionType":"git"},{"version":"773f91b2cf3f52df0d7508fdbf60f37567cdaee4","lessThan":"fd86534872f445f54dc01e7db001e25eadf063a8","status":"affected","versionType":"git"},{"version":"773f91b2cf3f52df0d7508fdbf60f37567cdaee4","lessThan":"e0c648627322a4c7e018e5c7f837c3c03e297dbb","status":"affected","versionType":"git"},{"version":"773f91b2cf3f52df0d7508fdbf60f37567cdaee4","lessThan":"eb8d3a2c809abd73ab0a060fe971d6b9019aa3c1","status":"affected","versionType":"git"},{"version":"11fab500f86403b2ebf6795feeade6e10302e448","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/sunrpc/svc_xprt.c"],"versions":[{"version":"5.18","status":"affected"},{"version":"0","lessThan":"5.18","status":"unaffected","versionType":"semver"},{"version":"5.15.113","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.30","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.3.4","lessThanOrEqual":"6.3.*","status":"unaffected","versionType":"semver"},{"version":"6.4","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":"5.15.35","versionEndExcluding":"5.15.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.1.30"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.3.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17.4"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/7851771789e87108a92697194105ef0c9307dc5e"},{"url":"https://git.kernel.org/stable/c/fd86534872f445f54dc01e7db001e25eadf063a8"},{"url":"https://git.kernel.org/stable/c/e0c648627322a4c7e018e5c7f837c3c03e297dbb"},{"url":"https://git.kernel.org/stable/c/eb8d3a2c809abd73ab0a060fe971d6b9019aa3c1"}],"title":"SUNRPC: double free xprt_ctxt while still in use","x_generator":{"engine":"bippy-1.2.0"}}}}