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| author |   Darrick J. Wong <darrick.wong@oracle.com> | 2017-07-12 10:26:47 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2017-07-13 14:55:05 -0700 |
| commit | d6ab17f261919d212ec0a9e33d01f46df0ec1fde (patch) | |
| tree | 185ec0d398285b1c444df1de3f109860b000f3f5 /fs | |
| parent | Revert "xfs: grab dquots without taking the ilock" (diff) | |
| download | linux-dev-d6ab17f261919d212ec0a9e33d01f46df0ec1fde.tar.xz linux-dev-d6ab17f261919d212ec0a9e33d01f46df0ec1fde.zip | |
vfs: in iomap seek_{hole,data}, return -ENXIO for negative offsets
In the iomap implementations of SEEK_HOLE and SEEK_DATA, make sure we
return -ENXIO for negative offsets.
Inspired-by: Mateusz S <muttdini@gmail.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/iomap.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/iomap.c b/fs/iomap.c index 432eed8f091f..16f5c07451bf 100644 --- a/fs/iomap.c +++ b/fs/iomap.c @@ -610,8 +610,8 @@ iomap_seek_hole(struct inode *inode, loff_t offset, const struct iomap_ops *ops) loff_t length = size - offset; loff_t ret; - /* Nothing to be found beyond the end of the file. */ - if (offset >= size) + /* Nothing to be found before or beyond the end of the file. */ + if (offset < 0 || offset >= size) return -ENXIO; while (length > 0) { @@ -656,8 +656,8 @@ iomap_seek_data(struct inode *inode, loff_t offset, const struct iomap_ops *ops) loff_t length = size - offset; loff_t ret; - /* Nothing to be found beyond the end of the file. */ - if (offset >= size) + /* Nothing to be found before or beyond the end of the file. */ + if (offset < 0 || offset >= size) return -ENXIO; while (length > 0) { |