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selftests/exec: Verify execve of non-regular files fail

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Add a named pipe as an exec target to make sure that non-regular
files are rejected by execve() with EACCES. This can help verify
commit 73601ea5b7 ("fs/open.c: allow opening only regular files
during execve()").

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Kees Cook
2020-05-17 21:47:43 -07:00
committed by Shuah Khan
parent a5f304670b
commit 61016db15b
3 changed files with 10 additions and 1 deletions
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tools/testing/selftests/exec/Makefile
+1 -1
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@@ -4,7 +4,7 @@ CFLAGS += -Wno-nonnull
CFLAGS += -D_GNU_SOURCE
TEST_GEN_PROGS := execveat
TEST_GEN_FILES := execveat.symlink execveat.denatured script subdir
TEST_GEN_FILES := execveat.symlink execveat.denatured script subdir pipe
# Makefile is a run-time dependency, since it's accessed by the execveat test
TEST_FILES := Makefile