------------[ cut here ]------------ workqueue: cannot queue hci_cmd_timeout on wq hci2 WARNING: CPU: 0 PID: 10159 at kernel/workqueue.c:2258 __queue_work+0xd62/0xfe0 kernel/workqueue.c:2256 Modules linked in: CPU: 0 UID: 0 PID: 10159 Comm: syz-executor Not tainted 6.16.0-rc3-syzkaller-00233-g35e261cd95dd #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:__queue_work+0xd62/0xfe0 kernel/workqueue.c:2256 Code: 42 80 3c 20 00 74 08 4c 89 ef e8 b9 e4 96 00 49 8b 75 00 49 81 c7 78 01 00 00 48 c7 c7 40 e1 89 8b 4c 89 fa e8 5f 34 f9 ff 90 <0f> 0b 90 90 e9 f1 f4 ff ff e8 90 8b 35 00 90 0f 0b 90 e9 dd fc ff RSP: 0018:ffffc90000007b08 EFLAGS: 00010046 RAX: 85e9ecd547847d00 RBX: 0000000000000100 RCX: ffff8880272ebc00 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002 RBP: 1ffff110046d9f38 R08: ffff8880b8624293 R09: 1ffff110170c4852 R10: dffffc0000000000 R11: ffffed10170c4853 R12: dffffc0000000000 R13: ffff888029ef4988 R14: 0000000000000008 R15: ffff8880236cf978 FS: 000055559013c500(0000) GS:ffff888125c84000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdd83d0a60 CR3: 000000007be92000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: call_timer_fn+0x17b/0x5f0 kernel/time/timer.c:1747 expire_timers kernel/time/timer.c:1793 [inline] __run_timers kernel/time/timer.c:2372 [inline] __run_timer_base+0x646/0x860 kernel/time/timer.c:2384 run_timer_base kernel/time/timer.c:2393 [inline] run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403 handle_softirqs+0x286/0x870 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_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:debug_lockdep_rcu_enabled+0x2a/0x40 kernel/rcu/update.c:321 Code: f3 0f 1e fa 31 c0 83 3d 67 f1 3f 04 00 74 1e 83 3d 8a 21 40 04 00 74 15 65 48 8b 0c 25 08 c0 99 92 31 c0 83 b9 ec 0a 00 00 00 <0f> 94 c0 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc RSP: 0018:ffffc9000387ecf0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffffff90bd5a01 RCX: ffff8880272ebc00 RDX: ffffc9000387ee01 RSI: dffffc0000000000 RDI: ffffc9000387edd0 RBP: dffffc0000000000 R08: ffffc9000387f4d8 R09: 0000000000000000 R10: ffffc9000387ee18 R11: fffff5200070fdc5 R12: ffffc9000387f4e8 R13: ffffc90003878000 R14: ffffc9000387edc8 R15: ffffffff81728af5 rcu_read_unlock include/linux/rcupdate.h:869 [inline] class_rcu_destructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0x195c/0x2390 arch/x86/kernel/unwind_orc.c:680 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:345 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4148 [inline] slab_alloc_node mm/slub.c:4197 [inline] kmem_cache_alloc_noprof+0x1c1/0x3c0 mm/slub.c:4204 fib_table_insert+0x4a7/0x1b50 net/ipv4/fib_trie.c:1338 fib_magic+0x2c4/0x390 net/ipv4/fib_frontend.c:1133 fib_add_ifaddr+0x144/0x5f0 net/ipv4/fib_frontend.c:1155 fib_inetaddr_event+0x12e/0x190 net/ipv4/fib_frontend.c:1469 notifier_call_chain+0x1b3/0x3e0 kernel/notifier.c:85 blocking_notifier_call_chain+0x6a/0x90 kernel/notifier.c:380 __inet_insert_ifa+0xa13/0xbf0 net/ipv4/devinet.c:567 inet_rtm_newaddr+0xf3a/0x18b0 net/ipv4/devinet.c:1002 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6944 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2534 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x75b/0x8d0 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:727 __sys_sendto+0x3bd/0x520 net/socket.c:2180 __do_sys_sendto net/socket.c:2187 [inline] __se_sys_sendto net/socket.c:2183 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2183 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: 0033:0x7f5fd47907bc Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b RSP: 002b:00007ffdd7dfa7f0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f5fd54e4620 RCX: 00007f5fd47907bc RDX: 0000000000000028 RSI: 00007f5fd54e4670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffdd7dfa844 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f5fd54e4670 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: f3 0f 1e fa endbr64 4: 31 c0 xor %eax,%eax 6: 83 3d 67 f1 3f 04 00 cmpl $0x0,0x43ff167(%rip) # 0x43ff174 d: 74 1e je 0x2d f: 83 3d 8a 21 40 04 00 cmpl $0x0,0x440218a(%rip) # 0x44021a0 16: 74 15 je 0x2d 18: 65 48 8b 0c 25 08 c0 mov %gs:0xffffffff9299c008,%rcx 1f: 99 92 21: 31 c0 xor %eax,%eax 23: 83 b9 ec 0a 00 00 00 cmpl $0x0,0xaec(%rcx) * 2a: 0f 94 c0 sete %al <-- trapping instruction 2d: c3 ret 2e: cc int3 2f: cc int3 30: cc int3 31: cc int3 32: cc int3 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: cc int3 3c: cc int3 3d: cc int3 3e: cc int3 3f: cc int3