watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz.4.4660:19599]
Modules linked in:
irq event stamp: 15148579
hardirqs last  enabled at (15148578): [<ffff80000819dc64>] __local_bh_enable_ip+0x1f8/0x380 kernel/softirq.c:406
hardirqs last disabled at (15148579): [<ffff8000111cfde8>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (390): [<ffff800010d01d28>] spin_unlock_bh include/linux/spinlock.h:408 [inline]
softirqs last  enabled at (390): [<ffff800010d01d28>] tipc_skb_peek_port net/tipc/msg.h:1258 [inline]
softirqs last  enabled at (390): [<ffff800010d01d28>] tipc_sk_rcv+0x278/0x22a8 net/tipc/socket.c:2491
softirqs last disabled at (392): [<ffff800010d01d44>] spin_trylock_bh include/linux/spinlock.h:423 [inline]
softirqs last disabled at (392): [<ffff800010d01d44>] tipc_sk_rcv+0x294/0x22a8 net/tipc/socket.c:2496
CPU: 0 PID: 19599 Comm: syz.4.4660 Not tainted 5.15.187-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : lockdep_rht_mutex_is_held+0x30/0xa0 lib/rhashtable.c:49
lr : lockdep_rht_mutex_is_held+0x18/0xa0 lib/rhashtable.c:48
sp : ffff8000224c63c0
x29: ffff8000224c63c0 x28: ffff0000c8cc2000 x27: ffff8000224c6640
x26: 000000000d1a25eb x25: dfff800000000000 x24: dfff800000000000
x23: ffff0000d88e0000 x22: dfff800000000000 x21: 0000000000000001
x20: ffff0000d88e1138 x19: ffff0000d88e1138 x18: 0000000000000402
x17: 0000000000000000 x16: ffff8000111d162c x15: ffff80000f69473c
x14: ffff80000f694500 x13: 1ffff0000283006b x12: 0000000000ff0100
x11: 0000000000000201 x10: 0000000000000000 x9 : dfff800000000000
x8 : 0000000000000000 x7 : ffff800010d0e52c x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002
x2 : 0000000000000008 x1 : 0000000000000001 x0 : ffff0000d88e1138
Call trace:
 lockdep_rht_mutex_is_held+0x30/0xa0 lib/rhashtable.c:49
 __rhashtable_lookup include/linux/rhashtable.h:594 [inline]
 rhashtable_lookup include/linux/rhashtable.h:638 [inline]
 tipc_sk_lookup+0x184/0x8a4 net/tipc/socket.c:2999
 tipc_sk_rcv+0x284/0x22a8 net/tipc/socket.c:2492
 tipc_node_xmit+0x1a4/0xdb4 net/tipc/node.c:1703
 tipc_node_xmit_skb net/tipc/node.c:1768 [inline]
 tipc_node_distr_xmit+0x248/0x33c net/tipc/node.c:1783
 tipc_sk_rcv+0x1de8/0x22a8 net/tipc/socket.c:2501
 tipc_node_xmit+0x1a4/0xdb4 net/tipc/node.c:1703
 tipc_sk_push_backlog net/tipc/socket.c:1316 [inline]
 tipc_sk_filter_connect net/tipc/socket.c:2255 [inline]
 tipc_sk_filter_rcv+0x120c/0x2798 net/tipc/socket.c:2364
 tipc_sk_enqueue net/tipc/socket.c:2445 [inline]
 tipc_sk_rcv+0x5c8/0x22a8 net/tipc/socket.c:2497
 tipc_node_xmit+0x1a4/0xdb4 net/tipc/node.c:1703
 tipc_node_xmit_skb net/tipc/node.c:1768 [inline]
 tipc_node_distr_xmit+0x248/0x33c 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+0x19c/0x3a0 net/core/sock.c:2725
 release_sock+0x60/0x258 net/core/sock.c:3266
 sock_setsockopt+0x199c/0x1e1c net/core/sock.c:1379
 __sys_setsockopt+0x32c/0x4b0 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+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584