Updated: 2025-02-27 13:59:54.747793
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]
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0 | |
| CVSS Version 3.x | MEDIUM | 5.5 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 5.5 | MEDIUM | Ignored | 2025-03-02 21:45:46 | ||
| CentOS 6 ELS | kernel | 2.6.32 | 5.5 | MEDIUM | Ignored | 2025-03-02 21:45:46 | ||
| CentOS 7 ELS | kernel | 3.10.0 | 5.5 | MEDIUM | Ignored | 2025-03-02 21:45:45 | ||
| CentOS 8.4 ELS | kernel | 4.18.0 | 5.5 | MEDIUM | Ignored | 2025-03-02 21:45:45 | ||
| CentOS 8.5 ELS | kernel | 4.18.0 | 5.5 | MEDIUM | Ignored | 2025-03-02 21:45:46 | ||
| CentOS Stream 8 ELS | kernel | 4.18.0 | 5.5 | MEDIUM | Ignored | 2025-03-02 21:45:45 | ||
| CloudLinux 6 ELS | kernel | 2.6.32 | 5.5 | MEDIUM | Ignored | 2025-03-02 21:45:46 | ||
| CloudLinux 7 ELS | kernel | 3.10.0 | 5.5 | MEDIUM | Ignored | 2025-03-02 21:45:45 | ||
| Oracle Linux 6 ELS | kernel | 2.6.32 | 5.5 | MEDIUM | Ignored | 2025-03-02 21:45:45 | ||
| Oracle Linux 7 ELS | kernel | 3.10.0 | 5.5 | MEDIUM | Ignored | 2025-03-02 21:45:45 |