[PATCH 0/4] arm64: ptrace: fix handling of partial SETREGSET calls

[Catalin Marinas]

On Thu, 05 Dec 2024 12:16:51 +0000, Mark Rutland wrote:
> A few of arm64's regsets forget to handle partial-length SETREGSET
> calls, and copy a small portion of uninitialized kernel stack memory to
> the backing storage of the relevant registers. In all cases the read is
> limited to a specific slot on the stack, and the issue does not provide
> a write mechanism.
> 
> For example, a zero-length SETREGSET to NT_ARM_FPMR will reset FPMR to
> an arbitrary uninitialized value from the kernel stack:
> 
> [...]

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

[1/4] arm64: ptrace: fix partial SETREGSET for NT_ARM_TAGGED_ADDR_CTRL
      https://git.kernel.org/arm64/c/ca62d90085f4
[2/4] arm64: ptrace: fix partial SETREGSET for NT_ARM_FPMR
      https://git.kernel.org/arm64/c/f5d71291841a
[3/4] arm64: ptrace: fix partial SETREGSET for NT_ARM_POE
      https://git.kernel.org/arm64/c/594bfc4947c4
[4/4] arm64: ptrace: fix partial SETREGSET for NT_ARM_GCS
      https://git.kernel.org/arm64/c/d60624f72d15

-- 
Catalin