linux-kernel - Re: kernel BUG at mm/vmalloc.c:LINE! (2)

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Message-ID: <00000000000043f09405ab01b0b8@google.com>
Date:   Tue, 21 Jul 2020 23:17:04 -0700
From:   syzbot <syzbot+5f326d255ca648131f87@...kaller.appspotmail.com>
To:     akpm@...ux-foundation.org, bp@...en8.de,
        dave.hansen@...ux.intel.com, hpa@...or.com,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org, luto@...nel.org,
        mingo@...nel.org, mingo@...hat.com, peterz@...radead.org,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de, x86@...nel.org
Subject: Re: kernel BUG at mm/vmalloc.c:LINE! (2)

syzbot has bisected this issue to:

commit bdbfb1d52d5e576c1d275fd8ab59b677011229e8
Author: Ingo Molnar <mingo@...nel.org>
Date:   Sun Jun 7 19:12:51 2020 +0000

    Revert "mm/vmalloc: modify struct vmap_area to reduce its size"

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=166e6b7f100000
start commit:   ab8be66e Add linux-next specific files for 20200720
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=156e6b7f100000
console output: https://syzkaller.appspot.com/x/log.txt?x=116e6b7f100000
kernel config:  https://syzkaller.appspot.com/x/.config?x=c4bf77d63d0cf88c
dashboard link: https://syzkaller.appspot.com/bug?extid=5f326d255ca648131f87
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=151192bb100000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12d7a873100000

Reported-by: syzbot+5f326d255ca648131f87@...kaller.appspotmail.com
Fixes: bdbfb1d52d5e ("Revert "mm/vmalloc: modify struct vmap_area to reduce its size"")

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