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0991abedde
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:
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.. | ||
balloc.c | ||
cache.c | ||
dir.c | ||
exfat_fs.h | ||
exfat_raw.h | ||
fatent.c | ||
file.c | ||
inode.c | ||
Kconfig | ||
Makefile | ||
misc.c | ||
namei.c | ||
nls.c | ||
super.c |