{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50243","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-09-15T13:58:00.971Z","datePublished":"2025-09-15T14:01:52.101Z","dateUpdated":"2026-05-11T19:15:32.510Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:15:32.510Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: handle the error returned from sctp_auth_asoc_init_active_key\n\nWhen it returns an error from sctp_auth_asoc_init_active_key(), the\nactive_key is actually not updated. The old sh_key will be freeed\nwhile it's still used as active key in asoc. Then an use-after-free\nwill be triggered when sending patckets, as found by syzbot:\n\n  sctp_auth_shkey_hold+0x22/0xa0 net/sctp/auth.c:112\n  sctp_set_owner_w net/sctp/socket.c:132 [inline]\n  sctp_sendmsg_to_asoc+0xbd5/0x1a20 net/sctp/socket.c:1863\n  sctp_sendmsg+0x1053/0x1d50 net/sctp/socket.c:2025\n  inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:819\n  sock_sendmsg_nosec net/socket.c:714 [inline]\n  sock_sendmsg+0xcf/0x120 net/socket.c:734\n\nThis patch is to fix it by not replacing the sh_key when it returns\nerrors from sctp_auth_asoc_init_active_key() in sctp_auth_set_key().\nFor sctp_auth_set_active_key(), old active_key_id will be set back\nto asoc->active_key_id when the same thing happens."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/sctp/auth.c"],"versions":[{"version":"50b57223da67653c61e405d0a7592355cfe4585e","lessThan":"b8fa99a3a11bdd77fef6b4a97f1021eb30b5ba40","status":"affected","versionType":"git"},{"version":"b60461696a0b0fdaf240bc365b7983698f88ded2","lessThan":"382ff44716603a54f5fd238ddec6a2468e217612","status":"affected","versionType":"git"},{"version":"8eb225873246312660ccd68296959a7b213d0cdd","lessThan":"f65955340e0044f5c41ac799a01698ac7dee8a4e","status":"affected","versionType":"git"},{"version":"58acd10092268831e49de279446c314727101292","lessThan":"19d636b663e0e92951bba5fced929ca7fd25c552","status":"affected","versionType":"git"},{"version":"58acd10092268831e49de279446c314727101292","lessThan":"0f90099d18e3abdc01babf686f41f63fe04939c1","status":"affected","versionType":"git"},{"version":"58acd10092268831e49de279446c314727101292","lessThan":"3b0fcf5e29c0940e1169ce9c44f73edd98bdf12d","status":"affected","versionType":"git"},{"version":"58acd10092268831e49de279446c314727101292","lessThan":"022152aaebe116a25c39818a07e175a8cd3c1e11","status":"affected","versionType":"git"},{"version":"c1de376423a7759bf4fa25d6a038a4c1e035c9e1","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/auth.c"],"versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","status":"unaffected","versionType":"semver"},{"version":"4.19.262","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.220","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.150","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.75","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.19.17","lessThanOrEqual":"5.19.*","status":"unaffected","versionType":"semver"},{"version":"6.0.3","lessThanOrEqual":"6.0.*","status":"unaffected","versionType":"semver"},{"version":"6.1","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":"4.19.199","versionEndExcluding":"4.19.262"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.136","versionEndExcluding":"5.4.220"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.54","versionEndExcluding":"5.10.150"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"5.15.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"5.19.17"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.0.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13.6"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/b8fa99a3a11bdd77fef6b4a97f1021eb30b5ba40"},{"url":"https://git.kernel.org/stable/c/382ff44716603a54f5fd238ddec6a2468e217612"},{"url":"https://git.kernel.org/stable/c/f65955340e0044f5c41ac799a01698ac7dee8a4e"},{"url":"https://git.kernel.org/stable/c/19d636b663e0e92951bba5fced929ca7fd25c552"},{"url":"https://git.kernel.org/stable/c/0f90099d18e3abdc01babf686f41f63fe04939c1"},{"url":"https://git.kernel.org/stable/c/3b0fcf5e29c0940e1169ce9c44f73edd98bdf12d"},{"url":"https://git.kernel.org/stable/c/022152aaebe116a25c39818a07e175a8cd3c1e11"}],"title":"sctp: handle the error returned from sctp_auth_asoc_init_active_key","x_generator":{"engine":"bippy-1.2.0"}}}}