================================
WARNING: inconsistent lock state
6.11.0-rc1-next-20240729-syzkaller #0 Not tainted
--------------------------------
inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
syz.0.9/5326 [HC0[0]:SC0[0]:HE1:SE1] takes:
ffff88801f132548 (&(&bat_priv->dat.work)->timer){+.?.}-{0:0}, at: touch_wq_lockdep_map kernel/workqueue.c:3876 [inline]
ffff88801f132548 (&(&bat_priv->dat.work)->timer){+.?.}-{0:0}, at: __flush_workqueue+0x1b0/0x1710 kernel/workqueue.c:3918
{IN-SOFTIRQ-W} state was registered at:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5822
call_timer_fn+0xdd/0x650 kernel/time/timer.c:1789
expire_timers kernel/time/timer.c:1838 [inline]
__run_timers kernel/time/timer.c:2417 [inline]
__run_timer_base+0x695/0x8e0 kernel/time/timer.c:2428
run_timer_base kernel/time/timer.c:2437 [inline]
run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447
handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
console_flush_all+0x9f7/0xf50
console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3173
vprintk_emit+0x7a1/0x900 kernel/printk/printk.c:2423
_printk+0xd5/0x120 kernel/printk/printk.c:2450
set_capacity_and_notify+0x1ae/0x240 block/genhd.c:86
loop_set_size+0x44/0xb0 drivers/block/loop.c:232
loop_configure+0x9fb/0xec0 drivers/block/loop.c:1102
lo_ioctl+0x849/0x1f60
blkdev_ioctl+0x580/0x6b0 block/ioctl.c:676
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
irq event stamp: 90247
hardirqs last enabled at (90247): [<ffffffff8bc3b193>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
hardirqs last enabled at (90247): [<ffffffff8bc3b193>] _raw_spin_unlock_irq+0x23/0x50 kernel/locking/spinlock.c:202
hardirqs last disabled at (90246): [<ffffffff8bc3aedd>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline]
hardirqs last disabled at (90246): [<ffffffff8bc3aedd>] _raw_spin_lock_irq+0xad/0x120 kernel/locking/spinlock.c:170
softirqs last enabled at (89564): [<ffffffff81574a24>] __do_softirq kernel/softirq.c:588 [inline]
softirqs last enabled at (89564): [<ffffffff81574a24>] invoke_softirq kernel/softirq.c:428 [inline]
softirqs last enabled at (89564): [<ffffffff81574a24>] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
softirqs last disabled at (89357): [<ffffffff81574a24>] __do_softirq kernel/softirq.c:588 [inline]
softirqs last disabled at (89357): [<ffffffff81574a24>] invoke_softirq kernel/softirq.c:428 [inline]
softirqs last disabled at (89357): [<ffffffff81574a24>] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&(&bat_priv->dat.work)->timer);
<Interrupt>
lock(&(&bat_priv->dat.work)->timer);
*** DEADLOCK ***
1 lock held by syz.0.9/5326:
#0: ffff88801cb600e0 (&type->s_umount_key#49/1){+.+.}-{3:3}, at: alloc_super+0x221/0x9d0 fs/super.c:344
stack backtrace:
CPU: 1 UID: 0 PID: 5326 Comm: syz.0.9 Not tainted 6.11.0-rc1-next-20240729-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_usage_bug+0x62e/0x8b0 kernel/locking/lockdep.c:4035
valid_state+0x13a/0x1c0 kernel/locking/lockdep.c:4049
mark_lock_irq+0xbb/0xc20 kernel/locking/lockdep.c:4260
mark_lock+0x223/0x360 kernel/locking/lockdep.c:4722
__lock_acquire+0x11b0/0x2050 kernel/locking/lockdep.c:5153
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5822
touch_wq_lockdep_map kernel/workqueue.c:3876 [inline]
__flush_workqueue+0x1c9/0x1710 kernel/workqueue.c:3918
drain_workqueue+0xc9/0x3a0 kernel/workqueue.c:4082
destroy_workqueue+0xba/0xc40 kernel/workqueue.c:5781
gfs2_fill_super+0x128a/0x2500 fs/gfs2/ops_fstype.c:1310
get_tree_bdev+0x3f7/0x570 fs/super.c:1635
gfs2_get_tree+0x54/0x220 fs/gfs2/ops_fstype.c:1329
vfs_get_tree+0x90/0x2a0 fs/super.c:1800
do_new_mount+0x2be/0xb40 fs/namespace.c:3472
do_mount fs/namespace.c:3812 [inline]
__do_sys_mount fs/namespace.c:4020 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3997
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8b62978aba
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8b6371ae78 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8b6371af00 RCX: 00007f8b62978aba
RDX: 00000000200124c0 RSI: 0000000020012500 RDI: 00007f8b6371aec0
RBP: 00000000200124c0 R08: 00007f8b6371af00 R09: 0000000000000400
R10: 0000000000000400 R11: 0000000000000202 R12: 0000000020012500
R13: 00007f8b6371aec0 R14: 00000000000124ab R15: 0000000020000240
</TASK>
list_del corruption, ffff88801f132410->prev is LIST_POISON2 (dead000000000122)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 5326 Comm: syz.0.9 Not tainted 6.11.0-rc1-next-20240729-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:__list_del_entry_valid_or_report+0x106/0x140 lib/list_debug.c:59
Code: e8 ff f6 fd 06 90 0f 0b 48 c7 c7 20 80 60 8c 4c 89 fe e8 ed f6 fd 06 90 0f 0b 48 c7 c7 80 80 60 8c 4c 89 fe e8 db f6 fd 06 90 <0f> 0b 48 c7 c7 e0 80 60 8c 4c 89 fe 48 89 d9 e8 c6 f6 fd 06 90 0f
RSP: 0018:ffffc9000412f928 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000122 RCX: 2eff0ccb2880fa00
RDX: ffffc90009841000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffff88801f1324f8 R08: ffffffff8173f339 R09: fffffbfff1cf9f90
R10: dffffc0000000000 R11: fffffbfff1cf9f90 R12: dffffc0000000000
R13: ffff88801f132400 R14: ffff88802f1a4810 R15: ffff88801f132410
FS: 00007f8b6371b6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb251f5a520 CR3: 0000000029b44000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__list_del_entry_valid include/linux/list.h:124 [inline]
__list_del_entry include/linux/list.h:215 [inline]
list_del_rcu include/linux/rculist.h:157 [inline]
destroy_workqueue+0x7b3/0xc40 kernel/workqueue.c:5823
gfs2_fill_super+0x128a/0x2500 fs/gfs2/ops_fstype.c:1310
get_tree_bdev+0x3f7/0x570 fs/super.c:1635
gfs2_get_tree+0x54/0x220 fs/gfs2/ops_fstype.c:1329
vfs_get_tree+0x90/0x2a0 fs/super.c:1800
do_new_mount+0x2be/0xb40 fs/namespace.c:3472
do_mount fs/namespace.c:3812 [inline]
__do_sys_mount fs/namespace.c:4020 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3997
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8b62978aba
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8b6371ae78 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8b6371af00 RCX: 00007f8b62978aba
RDX: 00000000200124c0 RSI: 0000000020012500 RDI: 00007f8b6371aec0
RBP: 00000000200124c0 R08: 00007f8b6371af00 R09: 0000000000000400
R10: 0000000000000400 R11: 0000000000000202 R12: 0000000020012500
R13: 00007f8b6371aec0 R14: 00000000000124ab R15: 0000000020000240
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0x106/0x140 lib/list_debug.c:59
Code: e8 ff f6 fd 06 90 0f 0b 48 c7 c7 20 80 60 8c 4c 89 fe e8 ed f6 fd 06 90 0f 0b 48 c7 c7 80 80 60 8c 4c 89 fe e8 db f6 fd 06 90 <0f> 0b 48 c7 c7 e0 80 60 8c 4c 89 fe 48 89 d9 e8 c6 f6 fd 06 90 0f
RSP: 0018:ffffc9000412f928 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000122 RCX: 2eff0ccb2880fa00
RDX: ffffc90009841000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffff88801f1324f8 R08: ffffffff8173f339 R09: fffffbfff1cf9f90
R10: dffffc0000000000 R11: fffffbfff1cf9f90 R12: dffffc0000000000
R13: ffff88801f132400 R14: ffff88802f1a4810 R15: ffff88801f132410
FS: 00007f8b6371b6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb251f5a520 CR3: 0000000029b44000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400