{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-71125", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:30:19.654Z", "datePublished": "2026-01-14T15:06:10.662Z", "dateUpdated": "2026-01-14T15:06:10.662Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-01-14T15:06:10.662Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Do not register unsupported perf events\n\nSynthetic events currently do not have a function to register perf events.\nThis leads to calling the tracepoint register functions with a NULL\nfunction pointer which triggers:\n\n ------------[ cut here ]------------\n WARNING: kernel/tracepoint.c:175 at tracepoint_add_func+0x357/0x370, CPU#2: perf/2272\n Modules linked in: kvm_intel kvm irqbypass\n CPU: 2 UID: 0 PID: 2272 Comm: perf Not tainted 6.18.0-ftest-11964-ge022764176fc-dirty #323 PREEMPTLAZY\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.17.0-debian-1.17.0-1 04/01/2014\n RIP: 0010:tracepoint_add_func+0x357/0x370\n Code: 28 9c e8 4c 0b f5 ff eb 0f 4c 89 f7 48 c7 c6 80 4d 28 9c e8 ab 89 f4 ff 31 c0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc <0f> 0b 49 c7 c6 ea ff ff ff e9 ee fe ff ff 0f 0b e9 f9 fe ff ff 0f\n RSP: 0018:ffffabc0c44d3c40 EFLAGS: 00010246\n RAX: 0000000000000001 RBX: ffff9380aa9e4060 RCX: 0000000000000000\n RDX: 000000000000000a RSI: ffffffff9e1d4a98 RDI: ffff937fcf5fd6c8\n RBP: 0000000000000001 R08: 0000000000000007 R09: ffff937fcf5fc780\n R10: 0000000000000003 R11: ffffffff9c193910 R12: 000000000000000a\n R13: ffffffff9e1e5888 R14: 0000000000000000 R15: ffffabc0c44d3c78\n FS: 00007f6202f5f340(0000) GS:ffff93819f00f000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000055d3162281a8 CR3: 0000000106a56003 CR4: 0000000000172ef0\n Call Trace:\n <TASK>\n tracepoint_probe_register+0x5d/0x90\n synth_event_reg+0x3c/0x60\n perf_trace_event_init+0x204/0x340\n perf_trace_init+0x85/0xd0\n perf_tp_event_init+0x2e/0x50\n perf_try_init_event+0x6f/0x230\n ? perf_event_alloc+0x4bb/0xdc0\n perf_event_alloc+0x65a/0xdc0\n __se_sys_perf_event_open+0x290/0x9f0\n do_syscall_64+0x93/0x7b0\n ? entry_SYSCALL_64_after_hwframe+0x76/0x7e\n ? trace_hardirqs_off+0x53/0xc0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nInstead, have the code return -ENODEV, which doesn't warn and has perf\nerror out with:\n\n # perf record -e synthetic:futex_wait\nError:\nThe sys_perf_event_open() syscall returned with 19 (No such device) for event (synthetic:futex_wait).\n\"dmesg | grep -i perf\" may provide additional information.\n\nIdeally perf should support synthetic events, but for now just fix the\nwarning. The support can come later."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/trace/trace_events.c"], "versions": [{"version": "4b147936fa509650beaf638b331573c23ba4d609", "lessThan": "f7305697b60d79bc69c0a6e280fc931b4e8862dd", "status": "affected", "versionType": "git"}, {"version": "4b147936fa509650beaf638b331573c23ba4d609", "lessThan": "65b1971147ec12f0b1cee0811c859a3d7d9b04ce", "status": "affected", "versionType": "git"}, {"version": "4b147936fa509650beaf638b331573c23ba4d609", "lessThan": "3437c775bf209c674ad66304213b6b3c3b1b3f69", "status": "affected", "versionType": "git"}, {"version": "4b147936fa509650beaf638b331573c23ba4d609", "lessThan": "6df47e5bb9b62d72f186f826ab643ea1856877c7", "status": "affected", "versionType": "git"}, {"version": "4b147936fa509650beaf638b331573c23ba4d609", "lessThan": "ef7f38df890f5dcd2ae62f8dbde191d72f3bebae", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/trace/trace_events.c"], "versions": [{"version": "4.17", "status": "affected"}, {"version": "0", "lessThan": "4.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.160", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.120", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.64", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.3", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19-rc2", "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": "4.17", "versionEndExcluding": "6.1.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.6.120"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.12.64"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.18.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.19-rc2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/f7305697b60d79bc69c0a6e280fc931b4e8862dd"}, {"url": "https://git.kernel.org/stable/c/65b1971147ec12f0b1cee0811c859a3d7d9b04ce"}, {"url": "https://git.kernel.org/stable/c/3437c775bf209c674ad66304213b6b3c3b1b3f69"}, {"url": "https://git.kernel.org/stable/c/6df47e5bb9b62d72f186f826ab643ea1856877c7"}, {"url": "https://git.kernel.org/stable/c/ef7f38df890f5dcd2ae62f8dbde191d72f3bebae"}], "title": "tracing: Do not register unsupported perf events", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Do not register unsupported perf events\n\nSynthetic events currently do not have a function to register perf events.\nThis leads to calling the tracepoint register functions with a NULL\nfunction pointer which triggers:\n\n ------------[ cut here ]------------\n WARNING: kernel/tracepoint.c:175 at tracepoint_add_func+0x357/0x370, CPU#2: perf/2272\n Modules linked in: kvm_intel kvm irqbypass\n CPU: 2 UID: 0 PID: 2272 Comm: perf Not tainted 6.18.0-ftest-11964-ge022764176fc-dirty #323 PREEMPTLAZY\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.17.0-debian-1.17.0-1 04/01/2014\n RIP: 0010:tracepoint_add_func+0x357/0x370\n Code: 28 9c e8 4c 0b f5 ff eb 0f 4c 89 f7 48 c7 c6 80 4d 28 9c e8 ab 89 f4 ff 31 c0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc <0f> 0b 49 c7 c6 ea ff ff ff e9 ee fe ff ff 0f 0b e9 f9 fe ff ff 0f\n RSP: 0018:ffffabc0c44d3c40 EFLAGS: 00010246\n RAX: 0000000000000001 RBX: ffff9380aa9e4060 RCX: 0000000000000000\n RDX: 000000000000000a RSI: ffffffff9e1d4a98 RDI: ffff937fcf5fd6c8\n RBP: 0000000000000001 R08: 0000000000000007 R09: ffff937fcf5fc780\n R10: 0000000000000003 R11: ffffffff9c193910 R12: 000000000000000a\n R13: ffffffff9e1e5888 R14: 0000000000000000 R15: ffffabc0c44d3c78\n FS: 00007f6202f5f340(0000) GS:ffff93819f00f000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000055d3162281a8 CR3: 0000000106a56003 CR4: 0000000000172ef0\n Call Trace:\n <TASK>\n tracepoint_probe_register+0x5d/0x90\n synth_event_reg+0x3c/0x60\n perf_trace_event_init+0x204/0x340\n perf_trace_init+0x85/0xd0\n perf_tp_event_init+0x2e/0x50\n perf_try_init_event+0x6f/0x230\n ? perf_event_alloc+0x4bb/0xdc0\n perf_event_alloc+0x65a/0xdc0\n __se_sys_perf_event_open+0x290/0x9f0\n do_syscall_64+0x93/0x7b0\n ? entry_SYSCALL_64_after_hwframe+0x76/0x7e\n ? trace_hardirqs_off+0x53/0xc0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nInstead, have the code return -ENODEV, which doesn't warn and has perf\nerror out with:\n\n # perf record -e synthetic:futex_wait\nError:\nThe sys_perf_event_open() syscall returned with 19 (No such device) for event (synthetic:futex_wait).\n\"dmesg | grep -i perf\" may provide additional information.\n\nIdeally perf should support synthetic events, but for now just fix the\nwarning. The support can come later."}], "id": "CVE-2025-71125", "lastModified": "2026-01-14T16:25:12.057", "metrics": {}, "published": "2026-01-14T15:16:02.213", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3437c775bf209c674ad66304213b6b3c3b1b3f69"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/65b1971147ec12f0b1cee0811c859a3d7d9b04ce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6df47e5bb9b62d72f186f826ab643ea1856877c7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ef7f38df890f5dcd2ae62f8dbde191d72f3bebae"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f7305697b60d79bc69c0a6e280fc931b4e8862dd"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{}

{}