{"id":"CVE-2026-92493","state":"PUBLISHED","title":"cpufreq: amd-pstate-ut: Skip tests when amd-pstate driver is not active","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: amd-pstate-ut: Skip tests when amd-pstate driver is not active\n\nThe crash issue may occur when modprobe amd_pstate_ut on intel platform.\n\n   amd_pstate_ut: 1    amd_pstate_ut_acpi_cpc_valid  success!\n   amd_pstate_ut: 2    amd_pstate_ut_check_enabled   success!\n   BUG: kernel NULL pointer dereference, address: 0000000000000080\n   #PF: supervisor read access in kernel mode\n   #PF: error_code(0x0000) - not-present page\n   PGD 0 P4D 0\n   Oops: 0000 [#1] SMP NOPTI\n   CPU: 0 PID: 20300 Comm: modprobe\n   Kdump: loaded Tainted: G O 6.6.0-0010.rc1.ctl4.x86_64 #1\n   Hardware name: FiberHome R2200 V5/Xeon Boards, BIOS 3.1a 02/24/2020\n   RIP: 0010:amd_pstate_ut_check_perf+0x141/0x280 [amd_pstate_ut]\n   Call Trace:\n    <TASK>\n    amd_pstate_ut_init+0x1b/0xff0 [amd_pstate_ut]\n    ? __pfx_amd_pstate_ut_init+0x10/0x10 [amd_pstate_ut]\n    do_one_initcall+0x42/0x2e0\n    ? kmalloc_trace+0x26/0x90\n    do_init_module+0x60/0x240\n    __se_sys_init_module+0x185/0x1c0\n    do_syscall_64+0x62/0x190\n    entry_SYSCALL_64_after_hwframe+0x76/0x7e\n    </TASK>\n\nAdd state detection to amd pstate driver to prevent amd_pstate_ut driver\nfrom testing on non-AMD platforms.\n\n(ML: adjust title)","publishedAt":"2026-09-17T16:10:09.008Z","updatedAt":"2026-10-19T09:03:59.534Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"14eb1c96e3a3fd9cd377ac9af3c7a410f8bf1015","status":"affected","lessThan":"baf5a7fd3f3e2f4297b42b249f4f4f63214f44c0","versionType":"git"},{"version":"14eb1c96e3a3fd9cd377ac9af3c7a410f8bf1015","status":"affected","lessThan":"ba6ce23d17db3d114adf13909a9002f1eedcf183","versionType":"git"},{"version":"14eb1c96e3a3fd9cd377ac9af3c7a410f8bf1015","status":"affected","lessThan":"8d31bb1451643f328db0cea0e21e63ef54b4faf2","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/amd-pstate-ut.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.1","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/amd-pstate-ut.c"]}],"references":["https://git.kernel.org/stable/c/baf5a7fd3f3e2f4297b42b249f4f4f63214f44c0","https://git.kernel.org/stable/c/ba6ce23d17db3d114adf13909a9002f1eedcf183","https://git.kernel.org/stable/c/8d31bb1451643f328db0cea0e21e63ef54b4faf2"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/92xxx/CVE-2026-92493.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-92493","state":"PUBLISHED","datePublished":"2026-09-17T16:10:09.008Z","dateUpdated":"2026-10-19T09:03:59.534Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-16T12:21:13.871Z"},"containers":{"cna":{"title":"cpufreq: amd-pstate-ut: Skip tests when amd-pstate driver is not active","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: amd-pstate-ut: Skip tests when amd-pstate driver is not active\n\nThe crash issue may occur when modprobe amd_pstate_ut on intel platform.\n\n   amd_pstate_ut: 1    amd_pstate_ut_acpi_cpc_valid  success!\n   amd_pstate_ut: 2    amd_pstate_ut_check_enabled   success!\n   BUG: kernel NULL pointer dereference, address: 0000000000000080\n   #PF: supervisor read access in kernel mode\n   #PF: error_code(0x0000) - not-present page\n   PGD 0 P4D 0\n   Oops: 0000 [#1] SMP NOPTI\n   CPU: 0 PID: 20300 Comm: modprobe\n   Kdump: loaded Tainted: G O 6.6.0-0010.rc1.ctl4.x86_64 #1\n   Hardware name: FiberHome R2200 V5/Xeon Boards, BIOS 3.1a 02/24/2020\n   RIP: 0010:amd_pstate_ut_check_perf+0x141/0x280 [amd_pstate_ut]\n   Call Trace:\n    <TASK>\n    amd_pstate_ut_init+0x1b/0xff0 [amd_pstate_ut]\n    ? __pfx_amd_pstate_ut_init+0x10/0x10 [amd_pstate_ut]\n    do_one_initcall+0x42/0x2e0\n    ? kmalloc_trace+0x26/0x90\n    do_init_module+0x60/0x240\n    __se_sys_init_module+0x185/0x1c0\n    do_syscall_64+0x62/0x190\n    entry_SYSCALL_64_after_hwframe+0x76/0x7e\n    </TASK>\n\nAdd state detection to amd pstate driver to prevent amd_pstate_ut driver\nfrom testing on non-AMD platforms.\n\n(ML: adjust title)"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"14eb1c96e3a3fd9cd377ac9af3c7a410f8bf1015","status":"affected","lessThan":"baf5a7fd3f3e2f4297b42b249f4f4f63214f44c0","versionType":"git"},{"version":"14eb1c96e3a3fd9cd377ac9af3c7a410f8bf1015","status":"affected","lessThan":"ba6ce23d17db3d114adf13909a9002f1eedcf183","versionType":"git"},{"version":"14eb1c96e3a3fd9cd377ac9af3c7a410f8bf1015","status":"affected","lessThan":"8d31bb1451643f328db0cea0e21e63ef54b4faf2","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/amd-pstate-ut.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.1","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/amd-pstate-ut.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/baf5a7fd3f3e2f4297b42b249f4f4f63214f44c0"},{"url":"https://git.kernel.org/stable/c/ba6ce23d17db3d114adf13909a9002f1eedcf183"},{"url":"https://git.kernel.org/stable/c/8d31bb1451643f328db0cea0e21e63ef54b4faf2"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:03:59.534Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}