watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor116:29471] Modules linked in: irq event stamp: 26766355 hardirqs last enabled at (26766354): [] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs last disabled at (26766355): [] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (26766355): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last enabled at (66): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (66): [] tipc_skb_peek_port net/tipc/msg.h:1235 [inline] softirqs last enabled at (66): [] tipc_sk_rcv+0x34c/0x1888 net/tipc/socket.c:2494 softirqs last disabled at (68): [] spin_trylock_bh include/linux/spinlock.h:411 [inline] softirqs last disabled at (68): [] tipc_sk_rcv+0x36c/0x1888 net/tipc/socket.c:2499 CPU: 0 PID: 29471 Comm: syz-executor116 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline] pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 sp : ffff80009ade60b0 x29: ffff80009ade60c0 x28: ffff80009ade62a0 x27: ffff80009381c700 x26: dfff800000000000 x25: 000000003079cb75 x24: 0000000000000001 x23: 1fffe0001b3dcb41 x22: dfff800000000000 x21: ffff80008a7fe750 x20: 0000000000000202 x19: ffff0000d9ee5a08 x18: ffff80009ade6100 x17: 000000000000ca2d x16: ffff80008032116c x15: 0000000000000001 x14: 1fffe0001b112d93 x13: 0000000000000000 x12: 0000000000000003 x11: 0000000000000201 x10: 0000000000000003 x9 : 0000000000000000 x8 : 0000000001986c12 x7 : ffff80008a80b3f8 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 x2 : 0000000000000002 x1 : ffff80008aedea60 x0 : ffff800125414000 Call trace: __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline] arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline] __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386 __raw_spin_trylock_bh include/linux/spinlock_api_smp.h:177 [inline] _raw_spin_trylock_bh+0x68/0x80 kernel/locking/spinlock.c:146 spin_trylock_bh include/linux/spinlock.h:411 [inline] tipc_sk_rcv+0x36c/0x1888 net/tipc/socket.c:2499 tipc_node_xmit+0x1b0/0xdb0 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+0x1280/0x1888 net/tipc/socket.c:2504 tipc_node_xmit+0x1b0/0xdb0 net/tipc/node.c:1703 tipc_sk_push_backlog+0x3b0/0x74c net/tipc/socket.c:1317 tipc_sk_conn_proto_rcv net/tipc/socket.c:1371 [inline] tipc_sk_proto_rcv+0x838/0x1520 net/tipc/socket.c:2161 tipc_sk_filter_rcv+0x29c0/0x2cac net/tipc/socket.c:2355 tipc_sk_enqueue net/tipc/socket.c:2448 [inline] tipc_sk_rcv+0x6d0/0x1888 net/tipc/socket.c:2500 tipc_node_xmit+0x1b0/0xdb0 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+0x164/0x214 net/tipc/socket.c:2415 sk_backlog_rcv include/net/sock.h:1092 [inline] __release_sock+0x1a8/0x408 net/core/sock.c:2972 release_sock+0x68/0x1b8 net/core/sock.c:3538 sk_setsockopt+0xbdc/0x306c sock_setsockopt+0x68/0x80 net/core/sock.c:1548 do_sock_setsockopt+0x238/0x4e0 net/socket.c:2307 __sys_setsockopt+0x128/0x1a8 net/socket.c:2334 __do_sys_setsockopt net/socket.c:2343 [inline] __se_sys_setsockopt net/socket.c:2340 [inline] __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2340 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598