Re: [syzbot] [block?] [reiserfs?] KASAN: user-memory-access Write in zram_slot_lock

From: syzbot
Date: Tue May 23 2023 - 05:35:03 EST


syzbot has bisected this issue to:

commit 9fe95babc7420722d39a1ded379027a1e1825d3a
Author: Christoph Hellwig <hch@xxxxxx>
Date: Tue Apr 11 17:14:44 2023 +0000

zram: remove valid_io_request

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=132fa586280000
start commit: 44c026a73be8 Linux 6.4-rc3
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=10afa586280000
console output: https://syzkaller.appspot.com/x/log.txt?x=172fa586280000
kernel config: https://syzkaller.appspot.com/x/.config?x=7d8067683055e3f5
dashboard link: https://syzkaller.appspot.com/bug?extid=b8d61a58b7c7ebd2c8e0
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1223f7d9280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1245326a280000

Reported-by: syzbot+b8d61a58b7c7ebd2c8e0@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 9fe95babc742 ("zram: remove valid_io_request")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection