Re: [syzbot] [jfs?] KASAN: slab-out-of-bounds Read in jfs_readdir

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On Sun 03-03-24 19:53:03, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
> 
> commit 6f861765464f43a71462d52026fbddfc858239a5
> Author: Jan Kara <jack@xxxxxxx>
> Date:   Wed Nov 1 17:43:10 2023 +0000
> 
>     fs: Block writes to mounted block devices
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=16b9e3ca180000
> start commit:   2772d7df3c93 Merge tag 'riscv-for-linus-6.5-rc2' of git://..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=6d0f369ef5fb88c9
> dashboard link: https://syzkaller.appspot.com/bug?extid=f328fbf8718edb712341
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10233f38a80000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11d35c1aa80000
> 
> If the result looks correct, please mark the issue as fixed by replying with:

Likely corrupted fs so that logdev == fsdev and this fixed it. We could
perhaps add some sanity checking but does anybody care enough about JFS?
 
#syz fix: fs: Block writes to mounted block devices

								Honza
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR




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