linux-kernel - Re: [syzbot] [ntfs3?] KASAN: slab-out-of-bounds Read in ntfs

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Message-ID: <000000000000877b2c05fb7f9fd4@google.com>
Date:   Fri, 12 May 2023 07:07:19 -0700
From:   syzbot <syzbot+9fcea5ef6dc4dc72d334@...kaller.appspotmail.com>
To:     almaz.alexandrovich@...agon-software.com,
        clang-built-linux@...glegroups.com, dvyukov@...gle.com,
        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, zengheng4@...wei.com
Subject: Re: [syzbot] [ntfs3?] KASAN: slab-out-of-bounds Read in ntfs_listxattr

syzbot has bisected this issue to:

commit 6e5be40d32fb1907285277c02e74493ed43d77fe
Author: Konstantin Komarov <almaz.alexandrovich@...agon-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=1587a32a280000
start commit:   8ed710da2873 Merge tag 'arm64-fixes' of git://git.kernel.o..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1787a32a280000
console output: https://syzkaller.appspot.com/x/log.txt?x=1387a32a280000
kernel config:  https://syzkaller.appspot.com/x/.config?x=b83f3e90d74765ea
dashboard link: https://syzkaller.appspot.com/bug?extid=9fcea5ef6dc4dc72d334
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17e7ec29880000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11829e23880000

Reported-by: syzbot+9fcea5ef6dc4dc72d334@...kaller.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