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CVE-2026-64373: Linux

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: cpufreq: Fix hotplug-suspend race during reboot During system reboot, cpufreq_suspend() is called via the kernel_restart() -> device_shutdown() path. Unlike the normal system suspend path, the reboot path does not call freeze_processes(), so userspace processes and kernel threads remain active. This allows CPU hotplug operations to run concurrently with cpufreq_suspend(). The original code has no synchronization with CPU hotplug, leading to a race condition where governor_data can be freed by the hotplug path while cpufreq_suspend() is still accessing it, resulting in a null pointer dereference: Unable to handle kernel NULL pointer dereference Call Trace: do_kernel_fault+0x28/0x3c cpufreq_suspend+0xdc/0x160 device_shutdown+0x18/0x200 kernel_restart+0x40/0x80 arm64_sys_reboot+0x1b0/0x200 Fix this by adding cpus_read_lock()/cpus_read_unlock() to cpufreq_suspend() to block CPU hotplug operations while suspend is in progress. [ rjw: Changelog edits ]

    Засегнати продукти

    • Linux Linux: 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 преди 6d5dd354c37abaf4d60400c55c71f23ba2b33639; 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 преди 9103078c7b3091a2fbb52af176f95982ee7dd7f8; 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 преди cd4524ff6567fa4458a5bec4b017105e671d393e; 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 преди 73255d702c7560185fd5951aadcf7eb057c2f453; 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 преди a0ef2fc89d28ca62923376c4b8ffaa57136a36be; 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 преди 6e175c00c62dca3d91b987015808b5d52e8db2b4; 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 преди a0106b41f9a724868d390b8b3b4ea5ca0e04ea53; 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 преди a9029dd55696c651ee46912afa2a166fa456bb3e; 8bfa06ea6e81bf08d2132d7e70c2b5313b34caf8; 7ccf3b8b7a12dc9da158c2e699c36d04b2496944; 5f466713989250938624afa79dc33bae20920700; 89ab39da1452d272007acc5912d4008047b86706; cb4b4601f910c78d2b49f637a12ef98b41cb76a9; 4.4.198 преди 4.5; 4.9.198 преди 4.10; 4.14.151 преди 4.15; 4.19.81 преди 4.20; 5.3.8 преди 5.4
    • Linux Linux: 5.4; преди 5.4; 5.10.261 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.96 до 6.12.*; 6.18.39 до 6.18.*; 7.1.4 до 7.1.*; от 7.2 нататък

    История

    • 25 юли 2026 Публикувано

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    CVE-2026-64373: Linux | freedomonline.bg