{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98846","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.373Z","datePublished":"2026-10-18T15:50:34.714Z","dateUpdated":"2026-10-30T12:40:09.817Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-30T12:40:09.817Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: check RCV_SHUTDOWN after the sendmsg connect wait\n\nsctp_wait_for_connect() drops the socket lock while it sleeps. An\nout-of-the-blue ABORT can then be processed from the socket backlog and\nunlink the association. If a concurrent shutdown(fd, SHUT_RD) sets\nRCV_SHUTDOWN, the waiter breaks with err == 0 before checking\nasoc->base.dead. Its final sctp_association_put() can then free the\nassociation, leaving sctp_sendmsg_to_asoc() to continue with a dangling\npointer.\n\nCheck RCV_SHUTDOWN along with the wait error in sctp_sendmsg_to_asoc()\nbefore using the association again. The check only accesses the socket,\nso it needs no additional association reference. Return the existing\n-ESRCH so that sctp_sendmsg() skips freeing a new association that may\nalready have been destroyed.\n\nKeep sctp_wait_for_connect() unchanged to preserve its behavior for the\nconnect() caller."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/sctp/socket.c"],"versions":[{"version":"668c9beb9020d5834ee9e43c208190a07d2b1928","lessThan":"7f798168c54455559da0f7a377a23ab7019fec35","status":"affected","versionType":"git"},{"version":"668c9beb9020d5834ee9e43c208190a07d2b1928","lessThan":"fe5a23c76fc48b711eb7d6f3462c994e34da36f9","status":"affected","versionType":"git"},{"version":"668c9beb9020d5834ee9e43c208190a07d2b1928","lessThan":"1e7cd89975fa3b11ebd7e1bbb4648a71c0e0e2d4","status":"affected","versionType":"git"},{"version":"668c9beb9020d5834ee9e43c208190a07d2b1928","lessThan":"1bef1944ef15a40797305bf916827b04df6307ca","status":"affected","versionType":"git"},{"version":"668c9beb9020d5834ee9e43c208190a07d2b1928","lessThan":"e8f972b1759d26bbefe4c524caae1ed7c8a593bd","status":"affected","versionType":"git"},{"version":"668c9beb9020d5834ee9e43c208190a07d2b1928","lessThan":"e701345d886e831fb593a0870d69c8c5de6fc938","status":"affected","versionType":"git"},{"version":"668c9beb9020d5834ee9e43c208190a07d2b1928","lessThan":"222c41e0f50f1d5028be9baf0e1dcfc0bfa7f669","status":"affected","versionType":"git"},{"version":"668c9beb9020d5834ee9e43c208190a07d2b1928","lessThan":"4f1da630d13de0370e2f6361f961f1c8b384af1c","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/sctp/socket.c"],"versions":[{"version":"4.16","status":"affected"},{"version":"0","lessThan":"4.16","status":"unaffected","versionType":"semver"},{"version":"5.10.273","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.224","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.191","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.160","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.113","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.56","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.10","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","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":"4.16","versionEndExcluding":"5.10.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.15.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"6.18.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"7.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"7.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/7f798168c54455559da0f7a377a23ab7019fec35"},{"url":"https://git.kernel.org/stable/c/fe5a23c76fc48b711eb7d6f3462c994e34da36f9"},{"url":"https://git.kernel.org/stable/c/1e7cd89975fa3b11ebd7e1bbb4648a71c0e0e2d4"},{"url":"https://git.kernel.org/stable/c/1bef1944ef15a40797305bf916827b04df6307ca"},{"url":"https://git.kernel.org/stable/c/e8f972b1759d26bbefe4c524caae1ed7c8a593bd"},{"url":"https://git.kernel.org/stable/c/e701345d886e831fb593a0870d69c8c5de6fc938"},{"url":"https://git.kernel.org/stable/c/222c41e0f50f1d5028be9baf0e1dcfc0bfa7f669"},{"url":"https://git.kernel.org/stable/c/4f1da630d13de0370e2f6361f961f1c8b384af1c"}],"title":"sctp: check RCV_SHUTDOWN after the sendmsg connect wait","x_generator":{"engine":"bippy-1.2.0"}}}}