CVE-2024-49944

sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start

State: Published
Severity: Not scored
Published: Oct 21, 2024
Updated: Oct 15, 2026
Reserved: Oct 21, 2024

Description

In the Linux kernel, the following vulnerability has been resolved:

sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start

In sctp_listen_start() invoked by sctp_inet_listen(), it should set the sk_state back to CLOSED if sctp_autobind() fails due to whatever reason.

Otherwise, next time when calling sctp_inet_listen(), if sctp_sk(sk)->reuse is already set via setsockopt(SCTP_REUSE_PORT), sctp_sk(sk)->bind_hash will be dereferenced as sk_state is LISTENING, which causes a crash as bind_hash is NULL.

KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:sctp_inet_listen+0x7f0/0xa20 net/sctp/socket.c:8617 Call Trace: <TASK> __sys_listen_socket net/socket.c:1883 [inline] __sys_listen+0x1b7/0x230 net/socket.c:1894 __do_sys_listen net/socket.c:1902 [inline]

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	5e8f3f703ae4e4af65e2695e486b3cd198328863 to before 89bbead9d897c77d0b566349c8643030ff2abebaAffected 5e8f3f703ae4e4af65e2695e486b3cd198328863 to before 0e4e2e60556c6ed00e8450b720f106a268d23062Affected 5e8f3f703ae4e4af65e2695e486b3cd198328863 to before dd70c8a89ef99c3d53127fe19e51ef47c3f860faAffected 5e8f3f703ae4e4af65e2695e486b3cd198328863 to before e7a8442195e8ebd97df467ce4742980ab57edcceAffected 5e8f3f703ae4e4af65e2695e486b3cd198328863 to before 9230a59eda0878d7ecaa901d876aec76f57bd455Affected 5e8f3f703ae4e4af65e2695e486b3cd198328863 to before 7f64cb5b4d8c872296eda0fdce3bcf099eec7aa7Affected 5e8f3f703ae4e4af65e2695e486b3cd198328863 to before f032e1dac30b3376c7d6026fb01a8c403c47a80dAffected 5e8f3f703ae4e4af65e2695e486b3cd198328863 to before e914bf68dab88815a7ae7b7a3a5e8913c8ff14a5Affected 5e8f3f703ae4e4af65e2695e486b3cd198328863 to before 8beee4d8dee76b67c75dc91fd8185d91e845c160Affected
LinuxLinux	2.6.30Affected before 2.6.30Not affected 4.19.323 through 4.19.Not affected 5.4.285 through 5.4.Not affected 5.10.227 through 5.10.Not affected 5.15.168 through 5.15.Not affected 6.1.113 through 6.1.Not affected 6.6.55 through 6.6.Not affected 6.10.14 through 6.10.Not affected 6.11.3 through 6.11.Not affected 6.12 and laterNot affected

Product

Versions

LinuxLinux

5e8f3f703ae4e4af65e2695e486b3cd198328863 to before 89bbead9d897c77d0b566349c8643030ff2abebaAffected
5e8f3f703ae4e4af65e2695e486b3cd198328863 to before 0e4e2e60556c6ed00e8450b720f106a268d23062Affected
5e8f3f703ae4e4af65e2695e486b3cd198328863 to before dd70c8a89ef99c3d53127fe19e51ef47c3f860faAffected
5e8f3f703ae4e4af65e2695e486b3cd198328863 to before e7a8442195e8ebd97df467ce4742980ab57edcceAffected
5e8f3f703ae4e4af65e2695e486b3cd198328863 to before 9230a59eda0878d7ecaa901d876aec76f57bd455Affected
5e8f3f703ae4e4af65e2695e486b3cd198328863 to before 7f64cb5b4d8c872296eda0fdce3bcf099eec7aa7Affected
5e8f3f703ae4e4af65e2695e486b3cd198328863 to before f032e1dac30b3376c7d6026fb01a8c403c47a80dAffected
5e8f3f703ae4e4af65e2695e486b3cd198328863 to before e914bf68dab88815a7ae7b7a3a5e8913c8ff14a5Affected
5e8f3f703ae4e4af65e2695e486b3cd198328863 to before 8beee4d8dee76b67c75dc91fd8185d91e845c160Affected

LinuxLinux

2.6.30Affected
before 2.6.30Not affected
4.19.323 through 4.19.*Not affected
5.4.285 through 5.4.*Not affected
5.10.227 through 5.10.*Not affected
5.15.168 through 5.15.*Not affected
6.1.113 through 6.1.*Not affected
6.6.55 through 6.6.*Not affected
6.10.14 through 6.10.*Not affected
6.11.3 through 6.11.*Not affected
6.12 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.