{"id":"CVE-2024-49944","summary":"sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start\n\nIn sctp_listen_start() invoked by sctp_inet_listen(), it should set the\nsk_state back to CLOSED if sctp_autobind() fails due to whatever reason.\n\nOtherwise, next time when calling sctp_inet_listen(), if sctp_sk(sk)-\u003ereuse\nis already set via setsockopt(SCTP_REUSE_PORT), sctp_sk(sk)-\u003ebind_hash will\nbe dereferenced as sk_state is LISTENING, which causes a crash as bind_hash\nis NULL.\n\n  KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n  RIP: 0010:sctp_inet_listen+0x7f0/0xa20 net/sctp/socket.c:8617\n  Call Trace:\n   \u003cTASK\u003e\n   __sys_listen_socket net/socket.c:1883 [inline]\n   __sys_listen+0x1b7/0x230 net/socket.c:1894\n   __do_sys_listen net/socket.c:1902 [inline]","modified":"2026-04-16T04:32:13.737706768Z","published":"2024-10-21T18:02:02.457Z","related":["SUSE-SU-2024:4314-1","SUSE-SU-2024:4316-1","SUSE-SU-2024:4318-1","SUSE-SU-2025:0201-1","SUSE-SU-2025:0201-2","SUSE-SU-2025:0229-1","SUSE-SU-2025:0236-1","SUSE-SU-2025:0289-1","SUSE-SU-2025:20163-1","SUSE-SU-2025:20164-1","SUSE-SU-2025:20246-1","SUSE-SU-2025:20247-1","USN-7276-1","USN-7277-1","openSUSE-SU-2024:14500-1","openSUSE-SU-2025:14705-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49944.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0e4e2e60556c6ed00e8450b720f106a268d23062"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7f64cb5b4d8c872296eda0fdce3bcf099eec7aa7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/89bbead9d897c77d0b566349c8643030ff2abeba"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8beee4d8dee76b67c75dc91fd8185d91e845c160"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9230a59eda0878d7ecaa901d876aec76f57bd455"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dd70c8a89ef99c3d53127fe19e51ef47c3f860fa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e7a8442195e8ebd97df467ce4742980ab57edcce"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e914bf68dab88815a7ae7b7a3a5e8913c8ff14a5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f032e1dac30b3376c7d6026fb01a8c403c47a80d"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49944.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-49944"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5e8f3f703ae4e4af65e2695e486b3cd198328863"},{"fixed":"89bbead9d897c77d0b566349c8643030ff2abeba"},{"fixed":"0e4e2e60556c6ed00e8450b720f106a268d23062"},{"fixed":"dd70c8a89ef99c3d53127fe19e51ef47c3f860fa"},{"fixed":"e7a8442195e8ebd97df467ce4742980ab57edcce"},{"fixed":"9230a59eda0878d7ecaa901d876aec76f57bd455"},{"fixed":"7f64cb5b4d8c872296eda0fdce3bcf099eec7aa7"},{"fixed":"f032e1dac30b3376c7d6026fb01a8c403c47a80d"},{"fixed":"e914bf68dab88815a7ae7b7a3a5e8913c8ff14a5"},{"fixed":"8beee4d8dee76b67c75dc91fd8185d91e845c160"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-49944.json"}}],"schema_version":"1.7.5"}