commit811d61e384upstream. futex.h's futex_atomic_cmpxchg_inatomic() does not use the __futex_atomic_op() macro and needs its own PAN toggling. This was missed when the feature was implemented. Fixes:338d4f49d6("arm64: kernel: Add support for Privileged Access Never") Signed-off-by: James Morse <james.morse@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Cc: Mian Yousaf Kaukab <yousaf.kaukab@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>