2024-01-17 1:19 GMT+09:00, syzbot <syzbot+fd404f6b03a58e8bc403@xxxxxxxxxxxxxxxxxxxxxxxxx>: > Hello, Hi, > > syzbot found the following issue on: > > HEAD commit: 052d534373b7 Merge tag 'exfat-for-6.8-rc1' of > git://git.ke.. > git tree: upstream > console+strace: https://syzkaller.appspot.com/x/log.txt?x=108ca8b3e80000 > kernel config: https://syzkaller.appspot.com/x/.config?x=7c8840a4a09eab8 > dashboard link: > https://syzkaller.appspot.com/bug?extid=fd404f6b03a58e8bc403 > compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for > Debian) 2.40 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1558210be80000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14d39debe80000 Thanks for your report! Can you test if this change fix this issue ? diff --git a/fs/exfat/inode.c b/fs/exfat/inode.c index 522edcbb2ce4..65ac7b67c2da 100644 --- a/fs/exfat/inode.c +++ b/fs/exfat/inode.c @@ -501,7 +501,7 @@ static ssize_t exfat_direct_IO(struct kiocb *iocb, struct iov_iter *iter) struct inode *inode = mapping->host; struct exfat_inode_info *ei = EXFAT_I(inode); loff_t pos = iocb->ki_pos; - loff_t size = iocb->ki_pos + iov_iter_count(iter); + loff_t size = pos + iov_iter_count(iter); int rw = iov_iter_rw(iter); ssize_t ret; @@ -525,11 +525,9 @@ static ssize_t exfat_direct_IO(struct kiocb *iocb, struct iov_iter *iter) */ ret = blockdev_direct_IO(iocb, inode, iter, exfat_get_block); if (ret < 0) { - if (rw == WRITE) + if (rw == WRITE && ret != -EIOCBQUEUED) exfat_write_failed(mapping, size); - - if (ret != -EIOCBQUEUED) - return ret; + return ret; } else size = pos + ret; -- 2.25.1
