| commit | 6e589291f4b1b700ca12baec5930592a0d51e63c | [log] [tgz] |
|---|---|---|
| author | Theodore Ts'o <tytso@mit.edu> | Mon Feb 11 01:07:10 2019 -0500 |
| committer | Theodore Ts'o <tytso@mit.edu> | Mon Feb 11 01:07:10 2019 -0500 |
| tree | d6c8cb6b4bcf16c569c3e048296411eab08d0b5d | |
| parent | abdc644e8cbac2e9b19763680e5a7cf9bab2bee7 [diff] |
ext4: disallow files with EXT4_JOURNAL_DATA_FL from EXT4_IOC_SWAP_BOOT A malicious/clueless root user can use EXT4_IOC_SWAP_BOOT to force a corner casew which can lead to the file system getting corrupted. There's no usefulness to allowing this, so just prohibit this case. Signed-off-by: Theodore Ts'o <tytso@mit.edu>