watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.0.2011:11811] Modules linked in: irq event stamp: 337922703 hardirqs last enabled at (337922702): [] __local_bh_enable_ip+0x12d/0x1c0 kernel/softirq.c:412 hardirqs last disabled at (337922703): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1050 softirqs last enabled at (584): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (584): [] tipc_skb_peek_port net/tipc/msg.h:1235 [inline] softirqs last enabled at (584): [] tipc_sk_rcv+0x3e9/0x2ba0 net/tipc/socket.c:2489 softirqs last disabled at (586): [] spin_trylock_bh include/linux/spinlock.h:411 [inline] softirqs last disabled at (586): [] tipc_sk_rcv+0x421/0x2ba0 net/tipc/socket.c:2494 CPU: 0 UID: 0 PID: 11811 Comm: syz.0.2011 Not tainted 6.16.0-rc5-syzkaller-00224-g379f604cc3dc #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:should_resched arch/x86/include/asm/preempt.h:104 [inline] RIP: 0010:__local_bh_enable_ip+0x135/0x1c0 kernel/softirq.c:414 Code: 8b e8 6f b2 e9 09 65 66 8b 05 6f 9f 1a 11 66 85 c0 75 5a bf 01 00 00 00 e8 a8 32 0b 00 e8 b3 11 42 00 fb 65 8b 05 4b 9f 1a 11 <85> c0 75 05 e8 82 f5 ad ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00 RSP: 0018:ffffc9000e456540 EFLAGS: 00000286 RAX: 0000000000000201 RBX: 0000000000000201 RCX: 1216cf3644652a00 RDX: 0000000000000002 RSI: ffffffff8d998e51 RDI: ffffffff8be29e00 RBP: ffffc9000e4565d0 R08: ffffffff8fa1f5f7 R09: 1ffffffff1f43ebe R10: dffffc0000000000 R11: fffffbfff1f43ebf R12: ffffffff8b0f4de9 R13: dffffc0000000000 R14: dffffc0000000000 R15: 1ffff92001c8aca8 FS: 00007fa71c0906c0(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000009000 CR3: 0000000043757000 CR4: 0000000000352ef0 Call Trace: spin_unlock_bh include/linux/spinlock.h:396 [inline] tipc_skb_peek_port net/tipc/msg.h:1235 [inline] tipc_sk_rcv+0x3e9/0x2ba0 net/tipc/socket.c:2489 tipc_node_xmit+0x1c9/0xe90 net/tipc/node.c:1701 tipc_node_xmit_skb+0xf4/0x150 net/tipc/node.c:1766 tipc_sk_rcv+0x29c4/0x2ba0 net/tipc/socket.c:2520 tipc_node_xmit+0x1c9/0xe90 net/tipc/node.c:1701 tipc_sk_push_backlog net/tipc/socket.c:1312 [inline] tipc_sk_filter_connect net/tipc/socket.c:2253 [inline] tipc_sk_filter_rcv+0x12a0/0x30b0 net/tipc/socket.c:2362 tipc_sk_enqueue net/tipc/socket.c:2443 [inline] tipc_sk_rcv+0x8a5/0x2ba0 net/tipc/socket.c:2495 tipc_node_xmit+0x1c9/0xe90 net/tipc/node.c:1701 tipc_node_xmit_skb net/tipc/node.c:1766 [inline] tipc_node_distr_xmit+0x2a0/0x3b0 net/tipc/node.c:1781 tipc_sk_backlog_rcv+0x1a1/0x230 net/tipc/socket.c:2410 sk_backlog_rcv include/net/sock.h:1148 [inline] __release_sock+0x249/0x350 net/core/sock.c:3213 release_sock+0x5f/0x1f0 net/core/sock.c:3767 tipc_release+0x16e2/0x2160 net/tipc/socket.c:650 __sock_release net/socket.c:647 [inline] sock_close+0xc3/0x240 net/socket.c:1391 __fput+0x449/0xa70 fs/file_table.c:465 task_work_run+0x1d1/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xec/0x110 kernel/entry/common.c:114 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline] do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa71b18e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa71c090038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: 00000000000203a0 RBX: 00007fa71b3b5fa0 RCX: 00007fa71b18e929 RDX: 0000000000000000 RSI: 00002000000003c0 RDI: 0000000000000003 RBP: 00007fa71b210b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fa71b3b5fa0 R15: 00007fffdf037f88