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Message-ID: <0000000000007f649605ee57c509@google.com>
Date: Fri, 25 Nov 2022 20:07:06 -0800
From: syzbot <syzbot+47366a6b503c7edf6bbb@...kaller.appspotmail.com>
To: jfs-discussion@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
shaggy@...nel.org, syzkaller-bugs@...glegroups.com
Subject: [syzbot] WARNING in diUnmount
Hello,
syzbot found the following issue on:
HEAD commit: a77d28d13789 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=15e01df9880000
kernel config: https://syzkaller.appspot.com/x/.config?x=c4c990190d758078
dashboard link: https://syzkaller.appspot.com/bug?extid=47366a6b503c7edf6bbb
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
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/7c4b04ddbeb3/disk-a77d28d1.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/3ecedb0cf6ca/vmlinux-a77d28d1.xz
kernel image: https://storage.googleapis.com/syzbot-assets/44c59c4393c7/Image-a77d28d1.gz.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+47366a6b503c7edf6bbb@...kaller.appspotmail.com
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3130 at mm/slab_common.c:923 free_large_kmalloc+0x3c/0x144 mm/slab_common.c:924
Modules linked in:
CPU: 0 PID: 3130 Comm: syz-executor.5 Not tainted 6.1.0-rc6-syzkaller-32651-ga77d28d13789 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : free_large_kmalloc+0x3c/0x144 mm/slab_common.c:924
lr : kfree+0xb8/0x118 mm/slab_common.c:1001
sp : ffff800012dcbba0
x29: ffff800012dcbba0 x28: ffff0000c4169a40 x27: 0000000000000000
x26: 00000000000000c0 x25: 0000000000000002 x24: ffff0000eccb8800
x23: ffff80000d5d8000 x22: ffff0000f2113018 x21: 0000000040000000
x20: ffff800008d57fd4 x19: fffffc0004768200 x18: 000000000000017a
x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000406 x12: ffff80000d4f7298
x11: ff8080000805b050 x10: 0000000000000000 x9 : fffffc0000000000
x8 : ffff80000d990000 x7 : ffff8000083e0fd4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002
x2 : 0000000000000008 x1 : ffff00011da08000 x0 : fffffc0004768200
Call trace:
free_large_kmalloc+0x3c/0x144 mm/slab_common.c:924
kfree+0xb8/0x118 mm/slab_common.c:1001
diUnmount+0x74/0x8c fs/jfs/jfs_imap.c:195
jfs_umount+0x94/0x190 fs/jfs/jfs_umount.c:63
jfs_put_super+0x6c/0x104 fs/jfs/super.c:194
generic_shutdown_super+0x94/0x198 fs/super.c:492
kill_block_super+0x30/0x78 fs/super.c:1428
deactivate_locked_super+0x70/0xe8 fs/super.c:332
deactivate_super+0xd0/0xd4 fs/super.c:363
cleanup_mnt+0x184/0x1c0 fs/namespace.c:1186
__cleanup_mnt+0x20/0x30 fs/namespace.c:1193
task_work_run+0x100/0x148 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
do_notify_resume+0x174/0x1f0 arch/arm64/kernel/signal.c:1127
prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:638
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
irq event stamp: 3932962
hardirqs last enabled at (3932961): [<ffff80000c0b6d44>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last enabled at (3932961): [<ffff80000c0b6d44>] _raw_spin_unlock_irqrestore+0x48/0x8c kernel/locking/spinlock.c:194
hardirqs last disabled at (3932962): [<ffff80000c0a4074>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last enabled at (3932812): [<ffff80000801c38c>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (3932810): [<ffff80000801c358>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---
object pointer: 0x000000001b0e773b
page:00000000b707f24b refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x15da08
flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000000000 fffffc0003bf0008 ffff0001feff4c20 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0)
------------[ cut here ]------------
kernel BUG at include/linux/mm.h:757!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 3130 Comm: syz-executor.5 Tainted: G W 6.1.0-rc6-syzkaller-32651-ga77d28d13789 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : put_page_testzero include/linux/mm.h:757 [inline]
pc : __free_pages+0xc0/0x168 mm/page_alloc.c:5640
lr : put_page_testzero include/linux/mm.h:757 [inline]
lr : __free_pages+0xc0/0x168 mm/page_alloc.c:5640
sp : ffff800012dcbb70
x29: ffff800012dcbb70 x28: ffff0000c4169a40 x27: 0000000000000000
x26: 00000000000000c0 x25: 0000000000000002 x24: ffff0000eccb8800
x23: ffff80000d5d8000 x22: 0000000000000000 x21: fffffffffffff000
x20: 0000000000000000 x19: fffffc0004768200 x18: 00000000000001ba
x17: 3030303030303030 x16: ffff80000dc18158 x15: ffff0000c4169a40
x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000c4169a40
x11: ff808000081c4d40 x10: 0000000000000000 x9 : 0db713de61b9aa00
x8 : 0db713de61b9aa00 x7 : ffff80000c0b1cb4 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000100000000 x0 : 000000000000003e
Call trace:
put_page_testzero include/linux/mm.h:757 [inline]
__free_pages+0xc0/0x168 mm/page_alloc.c:5640
free_large_kmalloc+0xac/0x144 mm/slab_common.c:932
kfree+0xb8/0x118 mm/slab_common.c:1001
diUnmount+0x74/0x8c fs/jfs/jfs_imap.c:195
jfs_umount+0x94/0x190 fs/jfs/jfs_umount.c:63
jfs_put_super+0x6c/0x104 fs/jfs/super.c:194
generic_shutdown_super+0x94/0x198 fs/super.c:492
kill_block_super+0x30/0x78 fs/super.c:1428
deactivate_locked_super+0x70/0xe8 fs/super.c:332
deactivate_super+0xd0/0xd4 fs/super.c:363
cleanup_mnt+0x184/0x1c0 fs/namespace.c:1186
__cleanup_mnt+0x20/0x30 fs/namespace.c:1193
task_work_run+0x100/0x148 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
do_notify_resume+0x174/0x1f0 arch/arm64/kernel/signal.c:1127
prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:638
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
Code: d0023861 91245021 aa1303e0 97fe88b8 (d4210000)
---[ end trace 0000000000000000 ]---
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@...glegroups.com.
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https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
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