[syzbot] [dm?] INFO: trying to register non-static key in __percpu_counter_sum

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 20a33c6b6cbe Add linux-next specific files for 20261023
git tree: linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=14800131580000
kernel config: https://syzkaller.appspot.com/x/.config?x=b72dfd5e7ab2b781
dashboard link: https://syzkaller.appspot.com/bug?extid=4b232570d625662eaab4
compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/cfbd1ccc6546/disk-20a33c6b.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/c36184d6a775/vmlinux-20a33c6b.xz
kernel image: https://storage.googleapis.com/syzbot-assets/48b7e871397c/bzImage-20a33c6b.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+4b2325...@syzkaller.appspotmail.com

INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 22591 Comm: syz.5.4175 Tainted: G L Y syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP, [Y]=FORCED_BIND
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:1028
register_lock_class+0xcc/0x2e0 kernel/locking/lockdep.c:1343
__lock_acquire+0x10c/0x2de0 kernel/locking/lockdep.c:5162
lock_acquire+0x115/0x350 kernel/locking/lockdep.c:5942
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:155 [inline]
_raw_spin_lock_irqsave+0x40/0x60 kernel/locking/spinlock.c:181
__percpu_counter_sum+0x2c/0x1f0 lib/percpu_counter.c:177
percpu_counter_sum include/linux/percpu_counter.h:105 [inline]
crypt_dtr+0x18c/0x450 drivers/md/dm-crypt.c:2742
crypt_ctr+0x1720/0x3c20 drivers/md/dm-crypt.c:3438
dm_table_add_target+0x58d/0xc70 drivers/md/dm-table.c:749
populate_table drivers/md/dm-ioctl.c:1602 [inline]
table_load+0x325/0x8a0 drivers/md/dm-ioctl.c:1645
ctl_ioctl drivers/md/dm-ioctl.c:2221 [inline]
dm_ctl_ioctl+0x9ec/0xe10 drivers/md/dm-ioctl.c:2243
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f69e6b9f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f69e79d8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f69e6e26090 RCX: 00007f69e6b9f559
RDX: 0000200000000840 RSI: 00000000c138fd09 RDI: 0000000000000004
RBP: 00007f69e6c36b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f69e6e26128 R14: 00007f69e6e26090 R15: 00007ffcfc580c88
</TASK>
device-mapper: table: 248:13: crypt: Unknown error (-ENOMEM)
device-mapper: ioctl: error adding target to table


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