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| author | Theodore Ts'o <tytso@mit.edu> | 2018-06-16 23:41:59 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2018-06-16 23:41:59 -0400 |
| commit | 8bc1379b82b8e809eef77a9fedbb75c6c297be19 (patch) | |
| tree | 621b4e6f36dae1bf770c8bb9309028e80ece02c2 /fs/ext4/ext4.h | |
| parent | e09463f220ca9a1a1ecfda84fcda658f99a1f12a (diff) | |
| download | linux-8bc1379b82b8e809eef77a9fedbb75c6c297be19.tar.bz2 | |
ext4: avoid running out of journal credits when appending to an inline file
Use a separate journal transaction if it turns out that we need to
convert an inline file to use an data block. Otherwise we could end
up failing due to not having journal credits.
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/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 856b6a54d82b..859d6433dcc1 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -3013,9 +3013,6 @@ extern int ext4_inline_data_fiemap(struct inode *inode, struct iomap; extern int ext4_inline_data_iomap(struct inode *inode, struct iomap *iomap); -extern int ext4_try_to_evict_inline_data(handle_t *handle, - struct inode *inode, - int needed); extern int ext4_inline_data_truncate(struct inode *inode, int *has_inline); extern int ext4_convert_inline_data(struct inode *inode); |