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| author |   Theodore Ts'o <tytso@mit.edu> | 2021-07-02 13:21:06 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2021-07-08 08:37:31 -0400 |
| commit | 0955901908e80384592ed85aa164d7e5be6cc067 (patch) | |
| tree | ac3f819f4291ab2c05d76521905f1f7cc625ec01 /fs/ext4 | |
| parent | ext4: fix possible UAF when remounting r/o a mmp-protected file system (diff) | |
| download | linux-dev-0955901908e80384592ed85aa164d7e5be6cc067.tar.xz linux-dev-0955901908e80384592ed85aa164d7e5be6cc067.zip | |
ext4: fix flags validity checking for EXT4_IOC_CHECKPOINT
Use the correct bitmask when checking for any not-yet-supported flags.
Link: https://lore.kernel.org/r/20210702173425.1276158-1-tytso@mit.edu
Fixes: 351a0a3fbc35 ("ext4: add ioctl EXT4_IOC_CHECKPOINT")
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Leah Rumancik <leah.rumancik@gmail.com>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/ioctl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index 5730aeca563c..6eed6170aded 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -823,7 +823,7 @@ static int ext4_ioctl_checkpoint(struct file *filp, unsigned long arg) if (!EXT4_SB(sb)->s_journal) return -ENODEV; - if (flags & ~JBD2_JOURNAL_FLUSH_VALID) + if (flags & ~EXT4_IOC_CHECKPOINT_FLAG_VALID) return -EINVAL; q = bdev_get_queue(EXT4_SB(sb)->s_journal->j_dev); |