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| author | Theodore Ts'o <tytso@mit.edu> | 2018-06-17 03:21:45 +0300 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2018-06-17 03:21:45 +0300 |
| commit | e09463f220ca9a1a1ecfda84fcda658f99a1f12a (patch) | |
| tree | 09dae2d5509c2e2aa36cd621cc81e94e9abbacd2 /fs/ext4 | |
| parent | 8cdb5240ec5928b20490a2bb34cb87e9a5f40226 (diff) | |
| download | linux-e09463f220ca9a1a1ecfda84fcda658f99a1f12a.tar.xz | |
jbd2: don't mark block as modified if the handle is out of credits
Do not set the b_modified flag in block's journal head should not
until after we're sure that jbd2_journal_dirty_metadat() will not
abort with an error due to there not being enough space reserved in
the jbd2 handle.
Otherwise, future attempts to modify the buffer may lead a large
number of spurious errors and warnings.
This addresses CVE-2018-10883.
https://bugzilla.kernel.org/show_bug.cgi?id=200071
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Diffstat (limited to 'fs/ext4')
0 files changed, 0 insertions, 0 deletions