GHSA-2647-7H53-XFQ5
Vulnerability from github – Published: 2025-04-16 15:34 – Updated: 2025-11-03 21:33In 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: 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]
{
"affected": [],
"aliases": [
"CVE-2025-22062"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-16T15:15:59Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: add mutual exclusion in proc_sctp_do_udp_port()\n\nWe must serialize calls to sctp_udp_sock_stop() and sctp_udp_sock_start()\nor risk a crash as syzbot reported:\n\nOops: general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]\nCPU: 1 UID: 0 PID: 6551 Comm: syz.1.44 Not tainted 6.14.0-syzkaller-g7f2ff7b62617 #0 PREEMPT(full)\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025\n RIP: 0010:kernel_sock_shutdown+0x47/0x70 net/socket.c:3653\nCall Trace:\n \u003cTASK\u003e\n udp_tunnel_sock_release+0x68/0x80 net/ipv4/udp_tunnel_core.c:181\n sctp_udp_sock_stop+0x71/0x160 net/sctp/protocol.c:930\n proc_sctp_do_udp_port+0x264/0x450 net/sctp/sysctl.c:553\n proc_sys_call_handler+0x3d0/0x5b0 fs/proc/proc_sysctl.c:601\n iter_file_splice_write+0x91c/0x1150 fs/splice.c:738\n do_splice_from fs/splice.c:935 [inline]\n direct_splice_actor+0x18f/0x6c0 fs/splice.c:1158\n splice_direct_to_actor+0x342/0xa30 fs/splice.c:1102\n do_splice_direct_actor fs/splice.c:1201 [inline]\n do_splice_direct+0x174/0x240 fs/splice.c:1227\n do_sendfile+0xafd/0xe50 fs/read_write.c:1368\n __do_sys_sendfile64 fs/read_write.c:1429 [inline]\n __se_sys_sendfile64 fs/read_write.c:1415 [inline]\n __x64_sys_sendfile64+0x1d8/0x220 fs/read_write.c:1415\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]",
"id": "GHSA-2647-7h53-xfq5",
"modified": "2025-11-03T21:33:36Z",
"published": "2025-04-16T15:34:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22062"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/10206302af856791fbcc27a33ed3c3eb09b2793d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/65ccb2793da7401772a3ffe85355c831b313c59f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b3598f53211ba1025485306de2733bdd241311a3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d3d7675d77622f6ca1aae14c51f80027b36283f8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e5178bfc55b3a78000f0f8298e7ade88783ce581"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/efb8cb487be8f4ba6aaef616011d702d6a083ed1"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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