watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz.0.218:5454]
Modules linked in:
irq event stamp: 4955
hardirqs last  enabled at (4954): [<ffff800011b52c44>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline]
hardirqs last  enabled at (4954): [<ffff800011b52c44>] exit_to_kernel_mode+0x100/0x178 arch/arm64/kernel/entry-common.c:91
hardirqs last disabled at (4955): [<ffff800011b52e8c>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (322): [<ffff80000ff06dd4>] spin_unlock_bh include/linux/spinlock.h:408 [inline]
softirqs last  enabled at (322): [<ffff80000ff06dd4>] release_sock+0x1e4/0x270 net/core/sock.c:3279
softirqs last disabled at (328): [<ffff80000ff19fd0>] spin_lock_bh include/linux/spinlock.h:368 [inline]
softirqs last disabled at (328): [<ffff80000ff19fd0>] lock_sock_nested+0x108/0x1ec net/core/sock.c:3256
CPU: 0 PID: 5454 Comm: syz.0.218 Not tainted 5.15.180-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : queued_spin_lock_slowpath+0x160/0x938 kernel/locking/qspinlock.c:382
lr : queued_spin_lock_slowpath+0x16c/0x938 kernel/locking/qspinlock.c:382
sp : ffff8000219975e0
x29: ffff800021997680 x28: 1ffff00004332ec8 x27: 1fffe0001baf4392
x26: dfff800000000000 x25: ffff700004332ec0 x24: ffff800021997600
x23: 1fffe0001baf4391 x22: ffff800021997640 x21: 0000000000000001
x20: 0000000000000001 x19: ffff0000dd7a1c88 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800008307bb8 x15: 000000000000000a
x14: 1ffff0000296e06c x13: dfff800000000000 x12: 0000000000000001
x11: 1fffe0001baf4391 x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000000000000101 x7 : ffff80000ff19fd0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800008306de0
x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 __cmpwait_case_32 arch/arm64/include/asm/cmpxchg.h:252 [inline]
 __cmpwait arch/arm64/include/asm/cmpxchg.h:278 [inline]
 queued_spin_lock_slowpath+0x160/0x938 kernel/locking/qspinlock.c:382
 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
 do_raw_spin_lock+0x334/0x35c kernel/locking/spinlock_debug.c:115
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline]
 _raw_spin_lock_bh+0x12c/0x1c4 kernel/locking/spinlock.c:178
 spin_lock_bh include/linux/spinlock.h:368 [inline]
 lock_sock_nested+0x108/0x1ec net/core/sock.c:3256
 lock_sock include/net/sock.h:1684 [inline]
 tipc_sendstream+0x50/0x84 net/tipc/socket.c:1549
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 ____sys_sendmsg+0x584/0x870 net/socket.c:2436
 ___sys_sendmsg+0x214/0x294 net/socket.c:2490
 __sys_sendmsg net/socket.c:2519 [inline]
 __do_sys_sendmsg net/socket.c:2528 [inline]
 __se_sys_sendmsg net/socket.c:2526 [inline]
 __arm64_sys_sendmsg+0x1ac/0x25c net/socket.c:2526
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584