Answer in brief
CVE-2025-22062 records a High severity (CVSS 7.8) vulnerability in sctp: add mutual exclusion in proc_sctp_do_udp_port(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=046c052b475e7119b6a30e3483e2888fc606a2f8 <65ccb2793da7401772a3ffe85355c831b313c59f || >=046c052b475e7119b6a30e3483e2888fc606a2f8 <386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d || >=046c052b475e7119b6a30e3483e2888fc606a2f8 <b3598f53211ba1025485306de2733bdd241311a3 || >=046c052b475e7119b6a30e3483e2888fc606a2f8 <e5178bfc55b3a78000f0f8298e7ade88783ce581 || >=046c052b475e7119b6a30e3483e2888fc606a2f8 <efb8cb487be8f4ba6aaef616011d702d6a083ed1 || >=046c052b475e7119b6a30e3483e2888fc606a2f8 <d3d7675d77622f6ca1aae14c51f80027b36283f8 || >=046c052b475e7119b6a30e3483e2888fc606a2f8 <10206302af856791fbcc27a33ed3c3eb09b2793d | 65ccb2793da7401772a3ffe85355c831b313c59f, 386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d, b3598f53211ba1025485306de2733bdd241311a3, e5178bfc55b3a78000f0f8298e7ade88783ce581, efb8cb487be8f4ba6aaef616011d702d6a083ed1, d3d7675d77622f6ca1aae14c51f80027b36283f8, 10206302af856791fbcc27a33ed3c3eb09b2793d |
| Linux/Linuxgeneric | 5.11 | Not reported |
Published upstream
Apr 16, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: sctp: add mutual exclusion in proc_sctp_do_udp_port() We must serialize calls to sctp_udp_sock_stop() and sctp_udp_sock_start() or risk a crash as syzbot reported: Oops: general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f] CPU: 1 UID: 0 PID: 6551 Comm: syz.1.44 Not tainted 6.14.0-syzkaller-g7f2ff7b62617 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:kernel_sock_shutdown+0x47/0x70 net/socket.c:3653 Call Trace: <TASK> udp_tunnel_sock_release+0x68/0x80 net/ipv4/udp_tunnel_core.c:181 sctp_udp_sock_stop+0x71/0x160 net/sctp/protocol.c:930 proc_sctp_do_udp_port+0x264/0x450 net/sctp/sysctl.c:553 proc_sys_call_handler+0x3d0/0x5b0 fs/proc/proc_sysctl.c:601 iter_file_splice_write+0x91c/0x1150 fs/splice.c:738 do_splice_from fs/splice.c:935 [inline] direct_splice_actor+0x18f/0x6c0 fs/splice.c:1158 splice_direct_to_actor+0x342/0xa30 fs/splice.c:1102 do_splice_direct_actor fs/splice.c:1201 [inline] do_splice_direct+0x174/0x240 fs/splice.c:1227 do_sendfile+0xafd/0xe50 fs/read_write.c:1368 __do_sys_sendfile64 fs/read_write.c:1429 [inline] __se_sys_sendfile64 fs/read_write.c:1415 [inline] __x64_sys_sendfile64+0x1d8/0x220 fs/read_write.c:1415 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
Quoted source text, attributed separately from HOL analysis.