linux-kernel - [syzbot] [gfs2?] kernel panic: stack is corrupted in gfs2_block

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Message-ID: <0000000000000cfc7b05f063adba@google.com>
Date:   Wed, 21 Dec 2022 21:09:39 -0800
From:   syzbot <syzbot+2b5229694171c6846a90@...kaller.appspotmail.com>
To:     agruenba@...hat.com, broonie@...nel.org, catalin.marinas@....com,
        cluster-devel@...hat.com, kaleshsingh@...gle.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        madvenka@...ux.microsoft.com, mark.rutland@....com, maz@...nel.org,
        rpeterso@...hat.com, syzkaller-bugs@...glegroups.com,
        will@...nel.org
Subject: [syzbot] [gfs2?] kernel panic: stack is corrupted in gfs2_block_map

Hello,

syzbot found the following issue on:

HEAD commit:    a5541c0811a0 Merge branch 'for-next/core' into for-kernelci
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=10e77d27880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=cbd4e584773e9397
dashboard link: https://syzkaller.appspot.com/bug?extid=2b5229694171c6846a90
compiler:       Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11b39610480000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11a1c6f7880000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/4b7702208fb9/disk-a5541c08.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/9ec0153ec051/vmlinux-a5541c08.xz
kernel image: https://storage.googleapis.com/syzbot-assets/6f8725ad290a/Image-a5541c08.gz.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/72be6726ff4f/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2b5229694171c6846a90@...kaller.appspotmail.com

loop0: detected capacity change from 0 to 125323
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: gfs2_block_map+0x33c/0x408
CPU: 1 PID: 3073 Comm: syz-executor388 Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call trace:
 dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:156
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:163
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x104/0x16c lib/dump_stack.c:106
 dump_stack+0x1c/0x58 lib/dump_stack.c:113
 panic+0x218/0x508 kernel/panic.c:274
 warn_bogus_irq_restore+0x0/0x40 kernel/panic.c:703
 gfs2_block_map+0x33c/0x408
 0x0
SMP: stopping secondary CPUs
Kernel Offset: disabled
CPU features: 0x00000,040e0108,4c017203
Memory Limit: none
Rebooting in 86400 seconds..

---
This report is generated by a bot. It may contain errors.
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