watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz.0.337:5845]
Modules linked in:
irq event stamp: 14612541
hardirqs last  enabled at (14612540): [<ffff8000081b6140>] __local_bh_enable_ip+0x230/0x470 kernel/softirq.c:388
hardirqs last disabled at (14612541): [<ffff800011b59384>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (74): [<ffff8000116fc84c>] spin_unlock_bh include/linux/spinlock.h:408 [inline]
softirqs last  enabled at (74): [<ffff8000116fc84c>] tipc_skb_peek_port net/tipc/msg.h:1258 [inline]
softirqs last  enabled at (74): [<ffff8000116fc84c>] tipc_sk_rcv+0x34c/0x193c net/tipc/socket.c:2491
softirqs last disabled at (76): [<ffff8000116fc86c>] spin_trylock_bh include/linux/spinlock.h:423 [inline]
softirqs last disabled at (76): [<ffff8000116fc86c>] tipc_sk_rcv+0x36c/0x193c net/tipc/socket.c:2496
CPU: 0 PID: 5845 Comm: syz.0.337 Not tainted 5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : should_resched arch/arm64/include/asm/preempt.h:78 [inline]
pc : __local_bh_enable_ip+0x238/0x470 kernel/softirq.c:390
lr : __local_bh_enable_ip+0x230/0x470 kernel/softirq.c:388
sp : ffff800022776110
x29: ffff800022776120 x28: ffff800022776320 x27: ffff0000ce7eb500
x26: dfff800000000000 x25: 00000000c7961f27 x24: 0000000000000001
x23: 1fffe0001affca39 x22: dfff800000000000 x21: ffff8000116fc86c
x20: 0000000000000202 x19: ffff0000d7fe51c8 x18: 0000000000000402
x17: 0000000000000000 x16: ffff8000082ed0ac x15: ffff80000fef848c
x14: 1ffff0000296e06c x13: dfff800000000000 x12: 0000000000000003
x11: 0000000000000201 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000000e0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800008046154
x2 : 0000000000000002 x1 : ffff800011caabe0 x0 : ffff80019f6b0000
Call trace:
 arch_local_irq_enable arch/arm64/include/asm/irqflags.h:35 [inline]
 __local_bh_enable_ip+0x238/0x470 kernel/softirq.c:388
 __raw_spin_trylock_bh include/linux/spinlock_api_smp.h:186 [inline]
 _raw_spin_trylock_bh+0x16c/0x23c kernel/locking/spinlock.c:146
 spin_trylock_bh include/linux/spinlock.h:423 [inline]
 tipc_sk_rcv+0x36c/0x193c net/tipc/socket.c:2496
 tipc_node_xmit+0x1b0/0xde4 net/tipc/node.c:1703
 tipc_node_xmit_skb net/tipc/node.c:1768 [inline]
 tipc_node_distr_xmit+0x28c/0x3a4 net/tipc/node.c:1783
 tipc_sk_rcv+0x12f8/0x193c net/tipc/socket.c:2501
 tipc_node_xmit+0x1b0/0xde4 net/tipc/node.c:1703
 tipc_sk_push_backlog+0x3b0/0x74c net/tipc/socket.c:1316
 tipc_sk_conn_proto_rcv net/tipc/socket.c:1370 [inline]
 tipc_sk_proto_rcv+0x838/0x1520 net/tipc/socket.c:2158
 tipc_sk_filter_rcv+0x2988/0x2c74 net/tipc/socket.c:2352
 tipc_sk_enqueue net/tipc/socket.c:2445 [inline]
 tipc_sk_rcv+0x6d0/0x193c net/tipc/socket.c:2497
 tipc_node_xmit+0x1b0/0xde4 net/tipc/node.c:1703
 tipc_node_xmit_skb net/tipc/node.c:1768 [inline]
 tipc_node_distr_xmit+0x28c/0x3a4 net/tipc/node.c:1783
 tipc_sk_backlog_rcv+0x168/0x224 net/tipc/socket.c:2412
 sk_backlog_rcv include/net/sock.h:1061 [inline]
 __release_sock+0x1a8/0x408 net/core/sock.c:2727
 release_sock+0x68/0x270 net/core/sock.c:3268
 sock_setsockopt+0x1e5c/0x28f4 net/core/sock.c:1381
 __sys_setsockopt+0x3f8/0x6b4 net/socket.c:2199
 __do_sys_setsockopt net/socket.c:2214 [inline]
 __se_sys_setsockopt net/socket.c:2211 [inline]
 __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2211
 __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