Threats Tagged 'cve-2026-23332'
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Threats Tagged 'cve-2026-23332'
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Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: cpufreq: intel_pstate: Fix crash during turbo disable When the system is booted… (CVE-2026-23332)CVE-2026-23332 0 In the Linux kernel, the following vulnerability has been resolved: cpufreq: intel_pstate: Fix crash during turbo disable When the system is booted with kernel command line argument "nosmt" or "maxcpus" to limit the number of CPUs, disabling turbo via: echo 1 > /sys/devices/system/cpu/intel_pstate/no_turbo results in a crash: PF: supervisor read access in kernel mode PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: Oops: 0000 [#1] SMP PTI ... RIP: 0010:store_no_turbo+0x100/0x1f0 ... This occurs because for_each_possible_cpu() returns CPUs even if they are not online. For those CPUs, all_cpu_data[] will be NULL. Since commit 973207ae3d7c ("cpufreq: intel_pstate: Rearrange max frequency updates handling code"), all_cpu_data[] is dereferenced even for CPUs which are not online, causing the NULL pointer dereference. To fix that, pass CPU number to intel_pstate_update_max_freq() and use all_cpu_data[] for those CPUs for which there is a valid cpufreq policy. Join the discussion | GCVE Database | 03/25/2026, 11:16:00 UTC Added: 07/31/2026, 15:39:07 UTC |
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