CVE-2026-80655
Description
In the Linux kernel, the following vulnerability has been resolved: soc: xilinx: Fix race condition in event registration The zynqmp_power driver registers handlers for suspend and subsystem restart events using register_event(). However, the work structures (zynqmp_pm_init_suspend_work and zynqmp_pm_init_restart_work) used by these handlers were allocated and initialized after the registration call. This created a race window where, if the firmware triggered an event immediately after registration but before allocation, the callback (suspend_event_callback or subsystem_restart_event_callback) would dereference a NULL pointer in work_pending(), leading to a crash. Fix this by allocating and initializing the work structures before registering the events.
How to fix
- Linux Linux07ea9081b8fefb99e2f427e0f0602a5e576cb120, e124f7b170337563d78a7a6aa152c897d229bc39, d349aa118ff5e4cab88424ce1b16e08edd70f8bb, fb445935338405110baca8f541a2df3b4cb8d712 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | fcf544ac64397776a18246eba5a8ca72a47c4405 ≤ v < 07ea9081b8fefb99e2f427e0f0602a5e576cb120, fcf544ac64397776a18246eba5a8ca72a47c4405 ≤ v < e124f7b170337563d78a7a6aa152c897d229bc39, fcf544ac64397776a18246eba5a8ca72a47c4405 ≤ v < d349aa118ff5e4cab88424ce1b16e08edd70f8bb, fcf544ac64397776a18246eba5a8ca72a47c4405 ≤ v < fb445935338405110baca8f541a2df3b4cb8d712, 6.11 | 07ea9081b8fefb99e2f427e0f0602a5e576cb120, e124f7b170337563d78a7a6aa152c897d229bc39, d349aa118ff5e4cab88424ce1b16e08edd70f8bb, fb445935338405110baca8f541a2df3b4cb8d712 |
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