{"id":"CVE-2025-68798","revision":"f3a4f49231eb4302b2f470eac79c3b4f","records":[{"revision":"f3a4f49231eb4302b2f470eac79c3b4f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-68798","aliases":[],"title":"perf/x86/amd: Check event before enable to avoid GPF","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86/amd: Check event before enable to avoid GPF\n\nOn AMD machines cpuc->events[idx] can become NULL in a subtle race\ncondition with NMI->throttle->x86_pmu_stop().\n\nCheck event for NULL in amd_pmu_enable_all() before enable to avoid a GPF.\nThis appears to be an AMD only issue.\n\nSyzkaller reported a GPF in amd_pmu_enable_all.\n\nINFO: NMI handler (perf_event_nmi_handler) took too long to run: 13.143\n msecs\nOops: general protection fault, probably for non-canonical address\n 0xdffffc0000000034: 0000 PREEMPT SMP KASAN NOPTI\nKASAN: null-ptr-deref in range [0x00000000000001a0-0x00000000000001a7]\nCPU: 0 UID: 0 PID: 328415 Comm: repro_36674776 Not tainted 6.12.0-rc1-syzk\nRIP: 0010:x86_pmu_enable_event (arch/x86/events/perf_event.h:1195\n arch/x86/events/core.c:1430)\nRSP: 0018:ffff888118009d60 EFLAGS: 00010012\nRAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000\nRDX: 0000000000000034 RSI: 0000000000000000 RDI: 00000000000001a0\nRBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000002\nR13: ffff88811802a440 R14: ffff88811802a240 R15: ffff8881132d8601\nFS: 00007f097dfaa700(0000) GS:ffff888118000000(0000) GS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000200001c0 CR3: 0000000103d56000 CR4: 00000000000006f0\nCall Trace:\n \namd_pmu_enable_all (arch/x86/events/amd/core.c:760 (discriminator 2))\nx86_pmu_enable (arch/x86/events/core.c:1360)\nevent_sched_out (kernel/events/core.c:1191 kernel/events/core.c:1186\n kernel/events/core.c:2346)\n__perf_remove_from_context (kernel/events/core.c:2435)\nevent_function (kernel/events/core.c:259)\nremote_function (kernel/events/core.c:92 (discriminator 1)\n kernel/events/core.c:72 (discriminator 1))\n__flush_smp_call_function_queue (./arch/x86/include/asm/jump_label.h:27\n ./include/linux/jump_label.h:207 ./include/trace/events/csd.h:64\n kernel/smp.c:135 kernel/smp.c:540)\n__sysvec_call_function_single (./arch/x86/include/asm/jump_label.h:27\n ./include/linux/jump_label.h:207\n ./arch/x86/include/asm/trace/irq_vectors.h:99 arch/x86/kernel/smp.c:272)\nsysvec_call_function_single (arch/x86/kernel/smp.c:266 (discriminator 47)\n arch/x86/kernel/smp.c:266 (discriminator 47))\n ","state":0,"publishedAt":"2026-01-13T15:29:08.329+00:00","modifiedAt":"2026-10-15T01:10:15.72+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 \"arch/x86/events/amd/core.c\"\n ],\n \"versions\": [\n {\n \"version\": \"ada543459cab7f653dcacdaba4011a8bb19c627c\",\n \"lessThan\": \"49324a0c40f7e9bae1bd0362d23fc42232e14621\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"ada543459cab7f653dcacdaba4011a8bb19c627c\",\n \"lessThan\": \"6e41d9ec8d7cc3f01b9ba785e05f0ebef8b3b37f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"ada543459cab7f653dcacdaba4011a8bb19c627c\",\n \"lessThan\": \"e1028fb38b328084bc683a4efb001c95d3108573\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"ada543459cab7f653dcacdaba4011a8bb19c627c\",\n \"lessThan\": \"43c2e5c2acaae50e99d1c20a5a46e367c442fb3b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"ada543459cab7f653dcacdaba4011a8bb19c627c\",\n \"lessThan\": \"866cf36bfee4fba6a492d2dcc5133f857e3446b0\",\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 \"arch/x86/events/amd/core.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5.19\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.19\",\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/49324a0c40f7e9bae1bd0362d23fc42232e14621","https://git.kernel.org/stable/c/6e41d9ec8d7cc3f01b9ba785e05f0ebef8b3b37f","https://git.kernel.org/stable/c/e1028fb38b328084bc683a4efb001c95d3108573","https://git.kernel.org/stable/c/43c2e5c2acaae50e99d1c20a5a46e367c442fb3b","https://git.kernel.org/stable/c/866cf36bfee4fba6a492d2dcc5133f857e3446b0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-68798","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-68798","identifiers":["CVE-2025-68798"]},"retained":false,"historicalAffected":[]}],"coverage":[]}