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Patch series "Fixes for MDWE prctl" These are four small fixes for the recent memory-write-deny-execute prctl patches [1]. Two reported by Alexey about error handling and two tooling fixes by Peter. This patch (of 4): Commitcc8d1b097d("mmap: clean up mmap_region() unrolling") deduplicated the error handling, do the same for the return value of `map_deny_write_exec`. Link: https://lkml.kernel.org/r/20230308190423.46491-1-joey.gouly@arm.com Link: https://lkml.kernel.org/r/20230308190423.46491-2-joey.gouly@arm.com Link: https://lore.kernel.org/linux-arm-kernel/20230119160344.54358-1-joey.gouly@arm.com/ [1] Fixes:b507808ebc("mm: implement memory-deny-write-execute as a prctl") Signed-off-by: Joey Gouly <joey.gouly@arm.com> Reported-by: Alexey Izbyshev <izbyshev@ispras.ru> Link: https://lore.kernel.org/linux-arm-kernel/8408d8901e9d7ee6b78db4c6cba04b78@ispras.ru/ Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: nd <nd@arm.com> Cc: Peter Xu <peterx@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Linux kernel
============
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