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selftests/memfd: add tests for F_SEAL_EXEC
Basic tests to ensure that user/group/other execute bits cannot be changed after applying F_SEAL_EXEC to a memfd. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Daniel Verkamp <[email protected]> Co-developed-by: Jeff Xu <[email protected]> Signed-off-by: Jeff Xu <[email protected]> Reviewed-by: Kees Cook <[email protected]> Cc: David Herrmann <[email protected]> Cc: Dmitry Torokhov <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: Jann Horn <[email protected]> Cc: Jorge Lucangeli Obes <[email protected]> Cc: kernel test robot <[email protected]> Cc: Shuah Khan <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
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