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CVE-2025-22062

sctp: add mutual exclusion in proc_sctp_do_udp_port()

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.15.184, 6.1.140, 6.6.92, 6.12.23, 6.13.11, and 1 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

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]

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From 046c052b475e7119b6a30e3483e2888fc606a2f8 · fixed in 65ccb2793da7401772a3ffe85355c831b313c59f; From 046c052b475e7119b6a30e3483e2888fc606a2f8 · fixed in 386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d; From 046c052b475e7119b6a30e3483e2888fc606a2f8 · fixed in b3598f53211ba1025485306de2733bdd241311a3; From 046c052b475e7119b6a30e3483e2888fc606a2f8 · fixed in e5178bfc55b3a78000f0f8298e7ade88783ce581; From 046c052b475e7119b6a30e3483e2888fc606a2f8 · fixed in efb8cb487be8f4ba6aaef616011d702d6a083ed1; From 046c052b475e7119b6a30e3483e2888fc606a2f8 · fixed in d3d7675d77622f6ca1aae14c51f80027b36283f8; From 046c052b475e7119b6a30e3483e2888fc606a2f8 · fixed in 10206302af856791fbcc27a33ed3c3eb09b2793d

  • Linux Linux

    5.11

  • KernelLinux

    From 5.11.0 · fixed in 5.15.184; From 5.16.0 · fixed in 6.1.140; From 6.2.0 · fixed in 6.6.92; From 6.7.0 · fixed in 6.12.23; From 6.13.0 · fixed in 6.13.11; From 6.14.0 · fixed in 6.14.2

References 7

git.kernel.org