[PATCH v2] arm64: poe: fix stale POR_EL0 values for ptrace

[Will Deacon]

On Tue, 27 Jan 2026 13:39:26 +0000, Joey Gouly wrote:
> If a process wrote to POR_EL0 and then crashed before a context switch
> happened, the coredump would contain an incorrect value for POR_EL0.
> 
> The value read in poe_get() would be a stale value left in thread.por_el0.  Fix
> this by reading the value from the system register, if the target thread is the
> current thread.
> 
> [...]

Applied to arm64 (for-next/cpufeature), thanks!

[1/1] arm64: poe: fix stale POR_EL0 values for ptrace
      https://git.kernel.org/arm64/c/1f3b950492db

Cheers,
-- 
Will

https://fixes.arm64.dev
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