CVE-2025-22062

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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 <TASK>\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]"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The only entry point is a write() (or sendfile()/splice()) to the procfs file /proc/sys/net/sctp/udp_port, handled by proc_sctp_do_udp_port(); no remote peer or network packet can reach this code path.\nAC:L - The attacker creates and controls both sides of the race by issuing two concurrent writes to the same sysctl, and the window spans udp_tunnel_sock_release()'s synchronize_rcu() \u2014 a millisecond-scale gap between reading net->sctp.udp4_sock and clearing it \u2014 making the double release trivially winnable.\nPR:L - The sysctl is per-netns and net_ctl_permissions() grants write access to CAP_NET_ADMIN in the netns's user_ns, which any unprivileged user obtains with `unshare -Urn`; the file is also owned by the ns root uid via net_ctl_set_ownership().\nUI:N - Exploitation is entirely self-contained in the attacker's own threads writing to a procfs file; no victim action or cooperation is required.\nS:U - The double free and subsequent memory corruption occur in kernel heap objects within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The unserialized sctp_udp_sock_stop() releases the same struct socket twice, producing a use-after-free/double-iput on the socket_alloc slab plus a sock_put() refcount underflow, letting the attacker reallocate the freed object and read back kernel memory contents.\nI:H - The second thread executes kernel_sock_shutdown(), which performs an indirect call via READ_ONCE(sock->ops)->shutdown on the already-freed struct socket, giving a heap-spray-controlled function pointer and thus a control-flow hijack / arbitrary write primitive.\nA:H - The race reliably produces a kernel oops \u2014 syzbot reported a general protection fault (null-ptr-deref) in kernel_sock_shutdown() from sctp_udp_sock_stop() \u2014 and the double free/refcount underflow crashes or panics the kernel."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/sctp/sysctl.c"], "versions": [{"version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "lessThan": "65ccb2793da7401772a3ffe85355c831b313c59f", "status": "affected", "versionType": "git"}, {"version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "lessThan": "386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d", "status": "affected", "versionType": "git"}, {"version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "lessThan": "b3598f53211ba1025485306de2733bdd241311a3", "status": "affected", "versionType": "git"}, {"version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "lessThan": "e5178bfc55b3a78000f0f8298e7ade88783ce581", "status": "affected", "versionType": "git"}, {"version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "lessThan": "efb8cb487be8f4ba6aaef616011d702d6a083ed1", "status": "affected", "versionType": "git"}, {"version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "lessThan": "d3d7675d77622f6ca1aae14c51f80027b36283f8", "status": "affected", "versionType": "git"}, {"version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "lessThan": "10206302af856791fbcc27a33ed3c3eb09b2793d", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/sctp/sysctl.c"], "versions": [{"version": "5.11", "status": "affected"}, {"version": "0", "lessThan": "5.11", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.184", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.140", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.92", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.23", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13.11", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.14.2", "lessThanOrEqual": "6.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "5.15.184"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.1.140"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.6.92"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.12.23"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.13.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.14.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.15"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/65ccb2793da7401772a3ffe85355c831b313c59f"}, {"url": "https://git.kernel.org/stable/c/386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d"}, {"url": "https://git.kernel.org/stable/c/b3598f53211ba1025485306de2733bdd241311a3"}, {"url": "https://git.kernel.org/stable/c/e5178bfc55b3a78000f0f8298e7ade88783ce581"}, {"url": "https://git.kernel.org/stable/c/efb8cb487be8f4ba6aaef616011d702d6a083ed1"}, {"url": "https://git.kernel.org/stable/c/d3d7675d77622f6ca1aae14c51f80027b36283f8"}, {"url": "https://git.kernel.org/stable/c/10206302af856791fbcc27a33ed3c3eb09b2793d"}], "title": "sctp: add mutual exclusion in proc_sctp_do_udp_port()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T19:41:45.338Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-22062", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-15T21:44:21.546399Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T21:51:57.395Z"}}]}}

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[{"lang": "en", "value": "AV:L - The only entry point is a write() (or sendfile()/splice()) to the procfs file /proc/sys/net/sctp/udp_port, handled by proc_sctp_do_udp_port(); no remote peer or network packet can reach this code path.\nAC:L - The attacker creates and controls both sides of the race by issuing two concurrent writes to the same sysctl, and the window spans udp_tunnel_sock_release()'s synchronize_rcu() \u2014 a millisecond-scale gap between reading net->sctp.udp4_sock and clearing it \u2014 making the double release trivially winnable.\nPR:L - The sysctl is per-netns and net_ctl_permissions() grants write access to CAP_NET_ADMIN in the netns's user_ns, which any unprivileged user obtains with `unshare -Urn`; the file is also owned by the ns root uid via net_ctl_set_ownership().\nUI:N - Exploitation is entirely self-contained in the attacker's own threads writing to a procfs file; no victim action or cooperation is required.\nS:U - The double free and subsequent memory corruption occur in kernel heap objects within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The unserialized sctp_udp_sock_stop() releases the same struct socket twice, producing a use-after-free/double-iput on the socket_alloc slab plus a sock_put() refcount underflow, letting the attacker reallocate the freed object and read back kernel memory contents.\nI:H - The second thread executes kernel_sock_shutdown(), which performs an indirect call via READ_ONCE(sock->ops)->shutdown on the already-freed struct socket, giving a heap-spray-controlled function pointer and thus a control-flow hijack / arbitrary write primitive.\nA:H - The race reliably produces a kernel oops \u2014 syzbot reported a general protection fault (null-ptr-deref) in kernel_sock_shutdown() from sctp_udp_sock_stop() \u2014 and the double free/refcount underflow crashes or panics the kernel."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "lessThan": "65ccb2793da7401772a3ffe85355c831b313c59f", "versionType": "git"}, {"status": "affected", "version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "lessThan": "386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d", "versionType": "git"}, {"status": "affected", "version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "lessThan": "b3598f53211ba1025485306de2733bdd241311a3", "versionType": "git"}, {"status": "affected", "version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "lessThan": "e5178bfc55b3a78000f0f8298e7ade88783ce581", "versionType": "git"}, {"status": "affected", "version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "lessThan": "efb8cb487be8f4ba6aaef616011d702d6a083ed1", "versionType": "git"}, {"status": "affected", "version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "lessThan": "d3d7675d77622f6ca1aae14c51f80027b36283f8", "versionType": "git"}, {"status": "affected", "version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "lessThan": "10206302af856791fbcc27a33ed3c3eb09b2793d", "versionType": "git"}], "programFiles": ["net/sctp/sysctl.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.11"}, {"status": "unaffected", "version": "0", "lessThan": "5.11", "versionType": "semver"}, {"status": "unaffected", "version": "5.15.184", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.140", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.92", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.23", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.13.11", "versionType": "semver", "lessThanOrEqual": "6.13.*"}, {"status": "unaffected", "version": "6.14.2", "versionType": "semver", "lessThanOrEqual": "6.14.*"}, {"status": "unaffected", "version": "6.15", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/sctp/sysctl.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/65ccb2793da7401772a3ffe85355c831b313c59f"}, {"url": "https://git.kernel.org/stable/c/386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d"}, {"url": "https://git.kernel.org/stable/c/b3598f53211ba1025485306de2733bdd241311a3"}, {"url": "https://git.kernel.org/stable/c/e5178bfc55b3a78000f0f8298e7ade88783ce581"}, {"url": "https://git.kernel.org/stable/c/efb8cb487be8f4ba6aaef616011d702d6a083ed1"}, {"url": "https://git.kernel.org/stable/c/d3d7675d77622f6ca1aae14c51f80027b36283f8"}, {"url": "https://git.kernel.org/stable/c/10206302af856791fbcc27a33ed3c3eb09b2793d"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "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 <TASK>\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]"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.184", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.140", "versionStartIncluding": "5.11"}, {"criteria": 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"dateReserved": "2024-12-29T08:45:45.813Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-04-16T14:12:17.605Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/sctp/sysctl.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "65ccb2793da7401772a3ffe85355c831b313c59f", "status": "affected", "version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "versionType": "git"}, {"lessThan": "386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d", "status": "affected", "version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "versionType": "git"}, {"lessThan": "b3598f53211ba1025485306de2733bdd241311a3", "status": "affected", "version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "versionType": "git"}, {"lessThan": "e5178bfc55b3a78000f0f8298e7ade88783ce581", "status": "affected", "version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "versionType": "git"}, {"lessThan": "efb8cb487be8f4ba6aaef616011d702d6a083ed1", "status": "affected", "version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "versionType": "git"}, {"lessThan": "d3d7675d77622f6ca1aae14c51f80027b36283f8", "status": "affected", "version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "versionType": "git"}, {"lessThan": "10206302af856791fbcc27a33ed3c3eb09b2793d", "status": "affected", "version": "046c052b475e7119b6a30e3483e2888fc606a2f8", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/sctp/sysctl.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.11"}, {"lessThan": "5.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.184", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.140", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.92", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.23", "versionType": "semver"}, {"lessThanOrEqual": "6.13.*", "status": "unaffected", "version": "6.13.11", "versionType": "semver"}, {"lessThanOrEqual": "6.14.*", "status": "unaffected", "version": "6.14.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.15", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F1676A6B-00A5-44DF-98D3-6E3FA9F85D4A", "versionEndExcluding": "6.12.23", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E7E864B0-8C00-4679-BA55-659B4C9C3AD3", "versionEndExcluding": "6.13.11", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FADAE5D8-4808-442C-B218-77B2CE8780A0", "versionEndExcluding": "6.14.2", "versionStartIncluding": "6.14", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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 <TASK>\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]"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: sctp: agregar exclusi\u00f3n mutua en proc_sctp_do_udp_port() Debemos serializar las llamadas a sctp_udp_sock_stop() y sctp_udp_sock_start() o corremos el riesgo de un bloqueo como inform\u00f3 syzbot: Oops: error de protecci\u00f3n general, probablemente para la direcci\u00f3n no can\u00f3nica 0xdffffc000000000d: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref en el rango [0x000000000000068-0x000000000000006f] CPU: 1 UID: 0 PID: 6551 Comm: syz.1.44 No contaminado 6.14.0-syzkaller-g7f2ff7b62617 #0 PREEMPT(completo) Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/02/2025 RIP: 0010:kernel_sock_shutdown+0x47/0x70 net/socket.c:3653 Rastreo de llamadas: 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 [en l\u00ednea] 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 [en l\u00ednea] 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 [en l\u00ednea] __se_sys_sendfile64 fs/read_write.c:1415 [en l\u00ednea] __x64_sys_sendfile64+0x1d8/0x220 fs/read_write.c:1415 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [en l\u00ednea]"}], "id": "CVE-2025-22062", "lastModified": "2026-10-15T22:18:14.513", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-22062", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-15T21:44:21.546399Z", "version": "2.0.3"}}]}, "published": "2025-04-16T15:15:59.677", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/10206302af856791fbcc27a33ed3c3eb09b2793d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/65ccb2793da7401772a3ffe85355c831b313c59f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b3598f53211ba1025485306de2733bdd241311a3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d3d7675d77622f6ca1aae14c51f80027b36283f8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e5178bfc55b3a78000f0f8298e7ade88783ce581"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/efb8cb487be8f4ba6aaef616011d702d6a083ed1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: sctp: add mutual exclusion in proc_sctp_do_udp_port()", "id": "2360275", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2360275"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nsctp: add mutual exclusion in proc_sctp_do_udp_port()\nWe must serialize calls to sctp_udp_sock_stop() and sctp_udp_sock_start()\nor risk a crash as syzbot reported:\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\nRIP: 0010:kernel_sock_shutdown+0x47/0x70 net/socket.c:3653\nCall Trace:\n<TASK>\nudp_tunnel_sock_release+0x68/0x80 net/ipv4/udp_tunnel_core.c:181\nsctp_udp_sock_stop+0x71/0x160 net/sctp/protocol.c:930\nproc_sctp_do_udp_port+0x264/0x450 net/sctp/sysctl.c:553\nproc_sys_call_handler+0x3d0/0x5b0 fs/proc/proc_sysctl.c:601\niter_file_splice_write+0x91c/0x1150 fs/splice.c:738\ndo_splice_from fs/splice.c:935 [inline]\ndirect_splice_actor+0x18f/0x6c0 fs/splice.c:1158\nsplice_direct_to_actor+0x342/0xa30 fs/splice.c:1102\ndo_splice_direct_actor fs/splice.c:1201 [inline]\ndo_splice_direct+0x174/0x240 fs/splice.c:1227\ndo_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\ndo_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]"], "name": "CVE-2025-22062", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-04-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-22062\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-22062\nhttps://lore.kernel.org/linux-cve-announce/2025041607-CVE-2025-22062-8912@gregkh/T"], "threat_severity": "Moderate"}

{}