linux

iv/linux

History

Yuezhang Mo 0991abedde exfat: fix zero the unwritten part for dio read

For dio read, bio will be leave in flight when a successful partial
aio read have been setup, blockdev_direct_IO() will return
-EIOCBQUEUED. In the case, iter->iov_offset will be not advanced,
the oops reported by syzbot will occur if revert iter->iov_offset
with iov_iter_revert(). The unwritten part had been zeroed by aio
read, so there is no need to zero it in dio read.

Reported-by: syzbot+fd404f6b03a58e8bc403@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=fd404f6b03a58e8bc403
Fixes: 11a347fb6cef ("exfat: change to get file size from DataLength")
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>

2024-01-18 23:01:51 +09:00

balloc.c

exfat: using ffs instead of internal logic

2024-01-08 21:57:21 +09:00

cache.c

exfat: fix use of uninitialized spinlock on error path

2020-10-07 14:27:13 +09:00

dir.c

exfat: support create zero-size directory

2023-10-31 10:01:45 +09:00

exfat_fs.h

exfat: change to get file size from DataLength