Re: [syzbot] [ntfs3?] BUG: unable to handle kernel NULL pointer dereference in hdr_find_e (2)

From: syzbot
Date: Wed Aug 30 2023 - 20:31:39 EST


syzbot has bisected this issue to:

commit 6e5be40d32fb1907285277c02e74493ed43d77fe
Author: Konstantin Komarov <almaz.alexandrovich@xxxxxxxxxxxxxxxxxxxx>
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=151f20a8680000
start commit: 4b954598a47b Merge tag 'exfat-for-6.5-rc5' of git://git.ke..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=171f20a8680000
console output: https://syzkaller.appspot.com/x/log.txt?x=131f20a8680000
kernel config: https://syzkaller.appspot.com/x/.config?x=1e3d5175079af5a4
dashboard link: https://syzkaller.appspot.com/bug?extid=60cf892fc31d1f4358fc
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11ee0aa6a80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=100eaedea80000

Reported-by: syzbot+60cf892fc31d1f4358fc@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 6e5be40d32fb ("fs/ntfs3: Add NTFS3 in fs/Kconfig and fs/Makefile")

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