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| author | Christoph Hellwig <hch@lst.de> | 2024-05-03 11:10:42 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-05-03 18:05:11 +0300 |
| commit | 0c12028aec837f5a002009bbf68d179d506510e8 (patch) | |
| tree | 2022ff8ffd9092f7d48f76287b58cfca87f593d2 /Documentation | |
| parent | a4217c6740dc64a3eb6815868a9260825e8c68c6 (diff) | |
| download | linux-0c12028aec837f5a002009bbf68d179d506510e8.tar.xz | |
block: refine the EOF check in blkdev_iomap_begin
blkdev_iomap_begin rounds down the offset to the logical block size
before stashing it in iomap->offset and checking that it still is
inside the inode size.
Check the i_size check to the raw pos value so that we don't try a
zero size write if iter->pos is unaligned.
Fixes: 487c607df790 ("block: use iomap for writes to block devices")
Reported-by: syzbot+0a3683a0a6fecf909244@syzkaller.appspotmail.com
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: syzbot+0a3683a0a6fecf909244@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20240503081042.2078062-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions