Re: [syzbot] BUG: unable to handle kernel NULL pointer dereference in ni_find_attr

Re: [syzbot] BUG: unable to handle kernel NULL pointer dereference in ni_find_attr

[syzbot]

syzbot has bisected this issue to:

commit 6e5be40d32fb1907285277c02e74493ed43d77fe
Author: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Date:   Fri Aug 13 14:21:30 2021 +0000

    fs/ntfs3: Add NTFS3 in fs/Kconfig and fs/Makefile

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1458787d080000
start commit:   8379c0b31fbc Merge tag 'for-6.0-rc3-tag' of git://git.kern..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1658787d080000
console output: https://syzkaller.appspot.com/x/log.txt?x=1258787d080000
kernel config:  https://syzkaller.appspot.com/x/.config?x=911efaff115942bb
dashboard link: https://syzkaller.appspot.com/bug?extid=69d15cab6309bffae739
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=110d306d080000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17409333080000

Reported-by: syzbot+69d15cab6309bffae739@syzkaller.appspotmail.com
Fixes: 6e5be40d32fb ("fs/ntfs3: Add NTFS3 in fs/Kconfig and fs/Makefile")

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

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

[syzbot]

syzbot suspects this issue was fixed by commit:

commit 2681631c29739509eec59cc0b34e977bb04c6cf1
Author: Edward Lo <edward.lo@ambergroup.io>
Date:   Sat Aug 6 17:05:18 2022 +0000

    fs/ntfs3: Add null pointer check to attr_load_runs_vcn

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=110ad78d480000
start commit:   b7b275e60bcd Linux 6.1-rc7
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=2325e409a9a893e1
dashboard link: https://syzkaller.appspot.com/bug?extid=69d15cab6309bffae739
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16b3fb9b880000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=101313bb880000

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

#syz fix: fs/ntfs3: Add null pointer check to attr_load_runs_vcn

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

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

[Aleksandr Nogikh]

On Sun, Feb 5, 2023 at 8:46 PM syzbot
<syzbot+69d15cab6309bffae739@syzkaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 2681631c29739509eec59cc0b34e977bb04c6cf1
> Author: Edward Lo <edward.lo@ambergroup.io>
> Date:   Sat Aug 6 17:05:18 2022 +0000
>
>     fs/ntfs3: Add null pointer check to attr_load_runs_vcn
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=110ad78d480000
> start commit:   b7b275e60bcd Linux 6.1-rc7
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=2325e409a9a893e1
> dashboard link: https://syzkaller.appspot.com/bug?extid=69d15cab6309bffae739
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16b3fb9b880000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=101313bb880000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: fs/ntfs3: Add null pointer check to attr_load_runs_vcn

Looks correct.
#syz fix: fs/ntfs3: Add null pointer check to attr_load_runs_vcn

>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
>
> --
> You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/00000000000009570005f3f92b86%40google.com.