Re: [syzbot] [ntfs3?] UBSAN: shift-out-of-bounds in ntfs_iget

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On Tue 05-03-24 12:21:02, 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=12be09f2180000
> start commit:   afead42fdfca Merge tag 'perf-tools-fixes-for-v6.4-2-2023-0..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=162cf2103e4a7453
> dashboard link: https://syzkaller.appspot.com/bug?extid=4768a8f039aa677897d0
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12da9bbd280000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=174e8115280000
> 
> If the result looks correct, please mark the issue as fixed by replying with:
 
The reproducer is just mounting the fs so I'm not sure what's happening
there. But since there's no working repro and this is ntfs3:

#syz fix: fs: Block writes to mounted block devices

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




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