diff options
| author | Christian Brauner <brauner@kernel.org> | 2025-04-07 11:54:21 +0200 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-04-07 16:20:14 +0200 |
| commit | fcf31ec7cade5b17699bc2ed04cacbc92b14a864 (patch) | |
| tree | f01b2faa50a20d5455fc439132a332615bac23b7 /tools/testing/selftests/filesystems/anon_inode_test.c | |
| parent | c784159750bc83aa91d49ceeb2dbd627d22c0587 (diff) | |
selftests/filesystems: add chmod() test for anonymous inodes
Test that anonymous inodes cannot be chmod()ed.
Link: https://lore.kernel.org/20250407-work-anon_inode-v1-7-53a44c20d44e@kernel.org
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'tools/testing/selftests/filesystems/anon_inode_test.c')
| -rw-r--r-- | tools/testing/selftests/filesystems/anon_inode_test.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/testing/selftests/filesystems/anon_inode_test.c b/tools/testing/selftests/filesystems/anon_inode_test.c index f2cae8f1ccae..7c4d0a225363 100644 --- a/tools/testing/selftests/filesystems/anon_inode_test.c +++ b/tools/testing/selftests/filesystems/anon_inode_test.c @@ -22,5 +22,18 @@ TEST(anon_inode_no_chown) EXPECT_EQ(close(fd_context), 0); } +TEST(anon_inode_no_chmod) +{ + int fd_context; + + fd_context = sys_fsopen("tmpfs", 0); + ASSERT_GE(fd_context, 0); + + ASSERT_LT(fchmod(fd_context, 0777), 0); + ASSERT_EQ(errno, EOPNOTSUPP); + + EXPECT_EQ(close(fd_context), 0); +} + TEST_HARNESS_MAIN |