{"id":"CVE-2025-71125","revision":null,"records":[{"revision":"049f2a76db98459895f297f4b4d06b08","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-71125","aliases":[],"title":"tracing: Do not register unsupported perf events","description":"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 \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.","state":0,"publishedAt":"2026-01-14T15:06:10.662+00:00","modifiedAt":"2026-10-19T18:15:14.78+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"kernel/trace/trace_events.c\"\n ],\n \"versions\": [\n {\n \"version\": \"4b147936fa509650beaf638b331573c23ba4d609\",\n \"lessThan\": \"6819bc6285c0ff835f67cfae7efebc03541782f6\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4b147936fa509650beaf638b331573c23ba4d609\",\n \"lessThan\": \"6d15f08e6d8d4b4fb02d90805ea97f3e2c1d6fbc\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4b147936fa509650beaf638b331573c23ba4d609\",\n \"lessThan\": \"f7305697b60d79bc69c0a6e280fc931b4e8862dd\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4b147936fa509650beaf638b331573c23ba4d609\",\n \"lessThan\": \"65b1971147ec12f0b1cee0811c859a3d7d9b04ce\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4b147936fa509650beaf638b331573c23ba4d609\",\n \"lessThan\": \"3437c775bf209c674ad66304213b6b3c3b1b3f69\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4b147936fa509650beaf638b331573c23ba4d609\",\n \"lessThan\": \"6df47e5bb9b62d72f186f826ab643ea1856877c7\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4b147936fa509650beaf638b331573c23ba4d609\",\n \"lessThan\": \"ef7f38df890f5dcd2ae62f8dbde191d72f3bebae\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"kernel/trace/trace_events.c\"\n ],\n \"versions\": [\n {\n \"version\": \"4.17\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"4.17\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.248\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.198\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.160\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.120\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.64\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.3\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.19\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/6819bc6285c0ff835f67cfae7efebc03541782f6","https://git.kernel.org/stable/c/6d15f08e6d8d4b4fb02d90805ea97f3e2c1d6fbc","https://git.kernel.org/stable/c/f7305697b60d79bc69c0a6e280fc931b4e8862dd","https://git.kernel.org/stable/c/65b1971147ec12f0b1cee0811c859a3d7d9b04ce","https://git.kernel.org/stable/c/3437c775bf209c674ad66304213b6b3c3b1b3f69","https://git.kernel.org/stable/c/6df47e5bb9b62d72f186f826ab643ea1856877c7","https://git.kernel.org/stable/c/ef7f38df890f5dcd2ae62f8dbde191d72f3bebae"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-71125","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-71125","identifiers":["CVE-2025-71125"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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