{"id":"DEBIAN-CVE-2025-22062","details":"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:  \u003cTASK\u003e   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]","modified":"2026-09-01T16:06:10.805431326Z","published":"2025-04-16T15:15:59.677Z","upstream":["CVE-2025-22062"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-22062"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.140-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.112-1","6.1.115-1","6.1.119-1","6.1.123-1","6.1.124-1","6.1.128-1","6.1.129-1","6.1.133-1","6.1.135-1","6.1.137-1","6.1.139-1","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-22062.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.25-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-22062.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.25-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-22062.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}