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Will Deacon authored
This is a port of c95eb318 ("ARM: 7809/1: perf: fix event validation for software group leaders") to arm64, which fixes a panic in the arm64 perf backend found as a result of Vince's fuzzing tool. Cc: <stable@vger.kernel.org> Signed-off-by:
Will Deacon <will.deacon@arm.com> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com>
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