{"id":"CVE-2026-92493","summary":"cpufreq: amd-pstate-ut: Skip tests when amd-pstate driver is not active","details":"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    \u003cTASK\u003e\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    \u003c/TASK\u003e\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)","modified":"2026-09-19T03:47:26.379006910Z","published":"2026-09-17T16:10:09.008Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92493.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/8d31bb1451643f328db0cea0e21e63ef54b4faf2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ba6ce23d17db3d114adf13909a9002f1eedcf183"},{"type":"WEB","url":"https://git.kernel.org/stable/c/baf5a7fd3f3e2f4297b42b249f4f4f63214f44c0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92493.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92493"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"14eb1c96e3a3fd9cd377ac9af3c7a410f8bf1015"},{"fixed":"baf5a7fd3f3e2f4297b42b249f4f4f63214f44c0"},{"fixed":"ba6ce23d17db3d114adf13909a9002f1eedcf183"},{"fixed":"8d31bb1451643f328db0cea0e21e63ef54b4faf2"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92493.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.1.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92493.json"}}],"schema_version":"1.9.0"}