regmap: Fix race condition in hwspinlock irqsave routine

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In the Linux kernel, the following vulnerability has been resolved: regmap: Fix race condition in hwspinlock irqsave routine Previously, the address of the shared member '&map->spinlock_flags' was passed directly to 'hwspin_lock_timeout_irqsave'. This creates a race condition where multiple contexts contending for the lock could overwrite the shared flags variable, potentially corrupting the state for the current lock owner. Fix this by using a local stack variable 'flags' to store the IRQ state temporarily.

Source published

4 Feb 2026 16:07:51 UTC

Source modified

19 Oct 2026 18:25:29 UTC

Observed here

23 Oct 2026 15:48:27 UTC

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