{"id":"CVE-2024-49944","title":"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 CLOSE…","summary":"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 CLOSE…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 2.6.30, < 5.10.227","linux_kernel >= 5.11, < 5.15.168","linux_kernel >= 5.16, < 6.1.113","linux_kernel >= 6.2, < 6.6.55","linux_kernel >= 6.7, < 6.10.14","linux_kernel >= 6.11, < 6.11.3","linux_kernel = 6.12"],"patched":["linux_kernel 6.11.3"],"published":"2024-10-21","updated":"2026-10-15","sourceUpdated":"2026-10-15T01:19:01.507","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-49944","references":[{"url":"https://git.kernel.org/stable/c/0e4e2e60556c6ed00e8450b720f106a268d23062","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7f64cb5b4d8c872296eda0fdce3bcf099eec7aa7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/89bbead9d897c77d0b566349c8643030ff2abeba","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8beee4d8dee76b67c75dc91fd8185d91e845c160","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9230a59eda0878d7ecaa901d876aec76f57bd455","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dd70c8a89ef99c3d53127fe19e51ef47c3f860fa","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e7a8442195e8ebd97df467ce4742980ab57edcce","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e914bf68dab88815a7ae7b7a3a5e8913c8ff14a5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f032e1dac30b3376c7d6026fb01a8c403c47a80d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-355557.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00277,"epssPercentile":0.20058,"ingestedAt":"2026-10-15T03:30:12.754Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-10-22T13:37:19.751679Z"},"slug":"CVE-2024-49944","body":"## Overview\n\nIn 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)->reuse\nis already set via setsockopt(SCTP_REUSE_PORT), sctp_sk(sk)->bind_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   <TASK>\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]\n\n## Affected\n\n- `linux_kernel >= 2.6.30, < 5.10.227`\n- `linux_kernel >= 5.11, < 5.15.168`\n- `linux_kernel >= 5.16, < 6.1.113`\n- `linux_kernel >= 6.2, < 6.6.55`\n- `linux_kernel >= 6.7, < 6.10.14`\n- `linux_kernel >= 6.11, < 6.11.3`\n- `linux_kernel = 6.12`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.11.3`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}