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| author | Theodore Ts'o <tytso@mit.edu> | 2019-02-11 01:07:10 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2019-02-11 01:07:10 -0500 |
| commit | 6e589291f4b1b700ca12baec5930592a0d51e63c (patch) | |
| tree | d6c8cb6b4bcf16c569c3e048296411eab08d0b5d /security | |
| 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>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions