linux-kernel - Re: [syzbot] [ntfs3?] BUG: unable to handle kernel NULL pointer dereference in __d

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Date:   Fri, 15 Sep 2023 12:01:29 -0700
From:   syzbot <syzbot+29dc75ed37be943c610e@...kaller.appspotmail.com>
To:     adilger@...ger.ca, almaz.alexandrovich@...agon-software.com,
        edward.lo@...ergroup.io, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev,
        nathan@...nel.org, ndesaulniers@...gle.com, ntfs3@...ts.linux.dev,
        syzkaller-bugs@...glegroups.com, trix@...hat.com,
        viro@...iv.linux.org.uk
Subject: Re: [syzbot] [ntfs3?] BUG: unable to handle kernel NULL pointer
 dereference in __d_instantiate

syzbot suspects this issue was fixed by commit:

commit 54e45702b648b7c0000e90b3e9b890e367e16ea8
Author: Edward Lo <edward.lo@...ergroup.io>
Date:   Thu Sep 22 16:50:23 2022 +0000

    fs/ntfs3: Validate resident attribute name

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12403c74680000
start commit:   f9ff5644bcc0 Merge tag 'hsi-for-6.2' of git://git.kernel.o..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=c163713cf9186fe7
dashboard link: https://syzkaller.appspot.com/bug?extid=29dc75ed37be943c610e
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1077def7880000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10175baf880000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: fs/ntfs3: Validate resident attribute name

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