watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.2.27:6051] Modules linked in: irq event stamp: 15162295 hardirqs last enabled at (15162294): [] irqentry_exit+0x74/0x90 kernel/entry/common.c:310 hardirqs last disabled at (15162295): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1050 softirqs last enabled at (14767624): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (14767624): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (14767624): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 softirqs last disabled at (14767627): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (14767627): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (14767627): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 CPU: 1 UID: 0 PID: 6051 Comm: syz.2.27 Not tainted 6.15.0-syzkaller-gdf3bed9ea576 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x83/0x90 kernel/kcov.c:316 Code: 8d 52 28 4d 39 ca 77 22 89 ff 89 f6 49 ff c0 4c 89 01 48 c7 44 11 08 05 00 00 00 48 89 7c 11 10 48 89 74 11 18 48 89 44 11 20 cc cc cc cc cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90000a07f78 EFLAGS: 00000246 RAX: ffffffff8a1c4f1d RBX: ffff888026b64000 RCX: 0000000000000100 RDX: ffff8880253a8000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 1ffff1100de29819 R08: ffffc90000a08280 R09: ffffc90000a08290 R10: ffffc90000a080e0 R11: fffff5200014101e R12: 0000000000000001 R13: 0000000000000003 R14: 1ffff1100de2981b R15: ffff88806f14c0df FS: 00007f464ee346c0(0000) GS:ffff888125d5f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30315ff8 CR3: 00000000788b8000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __in6_dev_get include/net/addrconf.h:347 [inline] ip6_ignore_linkdown include/net/addrconf.h:443 [inline] find_match+0xfd/0xc90 net/ipv6/route.c:781 __find_rr_leaf+0x23a/0x6d0 net/ipv6/route.c:869 find_rr_leaf net/ipv6/route.c:890 [inline] rt6_select net/ipv6/route.c:934 [inline] fib6_table_lookup+0x39f/0xa80 net/ipv6/route.c:2232 ip6_pol_route+0x222/0x1180 net/ipv6/route.c:2268 pol_lookup_func include/net/ip6_fib.h:617 [inline] __fib6_rule_action net/ipv6/fib6_rules.c:237 [inline] fib6_rule_action+0x674/0x7d0 net/ipv6/fib6_rules.c:275 fib_rules_lookup+0x767/0xe90 net/core/fib_rules.c:339 fib6_rule_lookup+0x18e/0x6f0 net/ipv6/fib6_rules.c:112 ip6_route_input_lookup net/ipv6/route.c:2337 [inline] ip6_route_input+0x6ce/0xa50 net/ipv6/route.c:2640 ip6_rcv_finish+0x141/0x2d0 net/ipv6/ip6_input.c:77 NF_HOOK+0x309/0x3a0 include/linux/netfilter.h:317 __netif_receive_skb_one_core net/core/dev.c:5977 [inline] __netif_receive_skb+0xd3/0x380 net/core/dev.c:6090 process_backlog+0x60e/0x14f0 net/core/dev.c:6442 __napi_poll+0xc7/0x480 net/core/dev.c:7414 napi_poll net/core/dev.c:7478 [inline] net_rx_action+0x707/0xe30 net/core/dev.c:7605 handle_softirqs+0x283/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738 RIP: 0010:preempt_schedule_irq+0xb0/0x150 kernel/sched/core.c:7104 Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 8b 0a 2b f6 e8 d6 1b 62 f6 fb bf 01 00 00 00 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24 RSP: 0018:ffffc90005407c80 EFLAGS: 00000282 RAX: 106fab37040e9400 RBX: 0000000000000000 RCX: 106fab37040e9400 RDX: 0000000000000000 RSI: ffffffff8d9705ba RDI: 0000000000000001 RBP: ffffc90005407d30 R08: ffffffff8fa0bcf7 R09: 1ffffffff1f4179e R10: dffffc0000000000 R11: fffffbfff1f4179f R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000a80f90 irqentry_exit+0x6f/0x90 kernel/entry/common.c:307 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:security_socket_create+0x4/0x2e0 security/security.c:4552 Code: 4e 4c fd e9 e0 fd ff ff e8 f9 4d 4c fd e9 e0 fd ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 <55> 41 57 41 56 41 55 41 54 53 89 cb 89 d5 41 89 f6 41 89 ff e8 c3 RSP: 0018:ffffc90005407df8 EFLAGS: 00000287 RAX: ffffffff894109b8 RBX: ffffc90005407e80 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000028 RBP: 0000000000000000 R08: ffffc90005407e80 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1f4179f R12: ffff88807b358000 R13: 0000000000000000 R14: 0000000000000028 R15: 0000000000000005 __sock_create+0xd5/0x9f0 net/socket.c:1496 sock_create net/socket.c:1599 [inline] __sys_socket_create net/socket.c:1636 [inline] __sys_socket+0xd7/0x1b0 net/socket.c:1683 __do_sys_socket net/socket.c:1697 [inline] __se_sys_socket net/socket.c:1695 [inline] __x64_sys_socket+0x7a/0x90 net/socket.c:1695 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f464df8e969 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:00007f464ee34038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f464e1b5fa0 RCX: 00007f464df8e969 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000028 RBP: 00007f464e010ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f464e1b5fa0 R15: 00007ffd7e41c138 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5832 Comm: kworker/u9:2 Not tainted 6.15.0-syzkaller-gdf3bed9ea576 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: hci0 hci_cmd_timeout RIP: 0010:check_kcov_mode kernel/kcov.c:194 [inline] RIP: 0010:write_comp_data kernel/kcov.c:246 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x37/0x90 kernel/kcov.c:321 Code: 08 10 9c 92 65 8b 15 58 d0 db 10 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 57 83 b9 3c 16 00 00 00 74 4e 8b 91 18 16 00 00 <83> fa 03 75 43 48 8b 91 20 16 00 00 44 8b 89 1c 16 00 00 49 c1 e1 RSP: 0018:ffffc900044eee58 EFLAGS: 00000246 RAX: ffffffff8b60c550 RBX: 0000000000000000 RCX: ffff8880256b1e00 RDX: 0000000000000000 RSI: 0000000000000a00 RDI: 0000000000000a00 RBP: ffffc900044eef80 R08: ffff8880256b1e00 R09: 0000000000000008 R10: 0000000000000007 R11: 0000000000000000 R12: 00000000ffff0a10 R13: 0000000000000a00 R14: ffffc900044ef267 R15: 1ffff9200089ddd8 FS: 0000000000000000(0000) GS:ffff888125c5f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f72086bd050 CR3: 00000000788be000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: number+0xc0/0xf60 lib/vsprintf.c:458 vsnprintf+0x91b/0xf00 lib/vsprintf.c:2838 sprintf+0xd9/0x120 lib/vsprintf.c:3037 print_time kernel/printk/printk.c:1381 [inline] info_print_prefix+0x155/0x310 kernel/printk/printk.c:1407 record_print_text+0x154/0x430 kernel/printk/printk.c:1456 printk_get_next_message+0x26d/0x7b0 kernel/printk/printk.c:3024 console_emit_next_record kernel/printk/printk.c:3092 [inline] console_flush_all+0x4ca/0xc40 kernel/printk/printk.c:3226 __console_flush_and_unlock kernel/printk/printk.c:3285 [inline] console_unlock+0xc4/0x270 kernel/printk/printk.c:3325 vprintk_emit+0x5b7/0x7a0 kernel/printk/printk.c:2450 _printk+0xcf/0x120 kernel/printk/printk.c:2475 bt_err+0x10b/0x160 net/bluetooth/lib.c:296 hci_cmd_timeout+0xd8/0x1e0 net/bluetooth/hci_core.c:1453 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x711/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245