CVE-2026-64373
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
cpufreq: Fix hotplug-suspend race during reboot
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 ]
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 | affected | git | 6d5dd354c37abaf4d60400c55c71f23ba2b33639 | Unavailable | None listed |
| 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 | affected | git | 9103078c7b3091a2fbb52af176f95982ee7dd7f8 | Unavailable | None listed |
| 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 | affected | git | cd4524ff6567fa4458a5bec4b017105e671d393e | Unavailable | None listed |
| 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 | affected | git | 73255d702c7560185fd5951aadcf7eb057c2f453 | Unavailable | None listed |
| 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 | affected | git | a0ef2fc89d28ca62923376c4b8ffaa57136a36be | Unavailable | None listed |
| 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 | affected | git | 6e175c00c62dca3d91b987015808b5d52e8db2b4 | Unavailable | None listed |
| 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 | affected | git | a0106b41f9a724868d390b8b3b4ea5ca0e04ea53 | Unavailable | None listed |
| 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 | affected | git | a9029dd55696c651ee46912afa2a166fa456bb3e | Unavailable | None listed |
| 8bfa06ea6e81bf08d2132d7e70c2b5313b34caf8 | affected | git | Unavailable | Unavailable | None listed |
| 7ccf3b8b7a12dc9da158c2e699c36d04b2496944 | affected | git | Unavailable | Unavailable | None listed |
| 5f466713989250938624afa79dc33bae20920700 | affected | git | Unavailable | Unavailable | None listed |
| 89ab39da1452d272007acc5912d4008047b86706 | affected | git | Unavailable | Unavailable | None listed |
| cb4b4601f910c78d2b49f637a12ef98b41cb76a9 | affected | git | Unavailable | Unavailable | None listed |
| 4.4.198 | affected | semver | 4.5 | Unavailable | None listed |
| 4.9.198 | affected | semver | 4.10 | Unavailable | None listed |
| 4.14.151 | affected | semver | 4.15 | Unavailable | None listed |
| 4.19.81 | affected | semver | 4.20 | Unavailable | None listed |
| 5.3.8 | affected | semver | 5.4 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.4 | Unavailable | None listed |
| 5.10.261 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.212 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.178 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.96 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.39 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.4 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |