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| author | Theodore Ts'o <tytso@mit.edu> | 2018-10-02 18:21:19 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2018-10-02 18:21:19 -0400 |
| commit | 18aded17492088962ef43f00825179598b3e8c58 (patch) | |
| tree | 7581a1e8fb96cd3c32a66eeb04ec6e86554d8545 /fs/ext4/balloc.c | |
| parent | 799578ab16e86b074c184ec5abbda0bc698c7b0b (diff) | |
| download | linux-18aded17492088962ef43f00825179598b3e8c58.tar.bz2 | |
ext4: fix EXT4_IOC_SWAP_BOOT
The code EXT4_IOC_SWAP_BOOT ioctl hasn't been updated in a while, and
it's a bit broken with respect to more modern ext4 kernels, especially
metadata checksums.
Other problems fixed with this commit:
* Don't allow installing a DAX, swap file, or an encrypted file as a
boot loader.
* Respect the immutable and append-only flags.
* Wait until any DIO operations are finished *before* calling
truncate_inode_pages().
* Don't swap inode->i_flags, since these flags have nothing to do with
the inode blocks --- and it will give the IMA/audit code heartburn
when the inode is evicted.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Reported-by: syzbot+e81ccd4744c6c4f71354@syzkaller.appspotmail.com
Diffstat (limited to 'fs/ext4/balloc.c')
0 files changed, 0 insertions, 0 deletions