------------[ cut here ]------------ workqueue: cannot queue hci_cmd_timeout on wq hci1 WARNING: CPU: 0 PID: 10079 at kernel/workqueue.c:2257 __queue_work+0xc9c/0x10f0 kernel/workqueue.c:2256 Modules linked in: CPU: 0 UID: 0 PID: 10079 Comm: syz-executor Not tainted 6.15.0-rc6-syzkaller #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:__queue_work+0xc9c/0x10f0 kernel/workqueue.c:2256 Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 28 04 00 00 48 8b 75 18 4c 89 f2 48 c7 c7 40 e1 8b 8b e8 55 4f f7 ff 90 <0f> 0b 90 90 e9 96 f7 ff ff e8 36 6c 37 00 90 0f 0b 90 e9 1b f6 ff RSP: 0018:ffffc90000007be8 EFLAGS: 00010082 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817a7f78 RDX: ffff8880258bc880 RSI: ffffffff817a7f85 RDI: 0000000000000001 RBP: ffff88805cd4c930 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff92000000f8f R13: 0000000000000101 R14: ffff888023887178 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880977ec000(0063) knlGS:00000000565af440 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007fce6de20000 CR3: 000000006087d000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: call_timer_fn+0x197/0x620 kernel/time/timer.c:1789 expire_timers kernel/time/timer.c:1835 [inline] __run_timers+0x569/0x960 kernel/time/timer.c:2414 __run_timer_base kernel/time/timer.c:2426 [inline] __run_timer_base kernel/time/timer.c:2418 [inline] run_timer_base+0x114/0x190 kernel/time/timer.c:2435 run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2445 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:console_flush_all+0x9a2/0xc60 kernel/printk/printk.c:3227 Code: 00 e8 d2 f1 27 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 80 2a 20 00 48 85 db 0f 85 55 01 00 00 e8 02 2f 20 00 fb 4c 89 e0 <48> c1 e8 03 42 80 3c 38 00 0f 84 11 ff ff ff 4c 89 e7 e8 a7 b2 84 RSP: 0018:ffffc900030e6c60 EFLAGS: 00000293 RAX: ffffffff8f0cc1b8 RBX: 0000000000000000 RCX: ffffffff819a6bc0 RDX: ffff8880258bc880 RSI: ffffffff819a6bce RDI: 0000000000000007 RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8f0cc1b8 R13: ffffffff8f0cc160 R14: ffffc900030e6cf0 R15: dffffc0000000000 __console_flush_and_unlock kernel/printk/printk.c:3285 [inline] console_unlock+0xd8/0x210 kernel/printk/printk.c:3325 vprintk_emit+0x418/0x6d0 kernel/printk/printk.c:2450 _printk+0xc7/0x100 kernel/printk/printk.c:2475 batadv_hardif_activate_interface.part.0+0x139/0x350 net/batman-adv/hard-interface.c:673 batadv_hardif_activate_interface net/batman-adv/hard-interface.c:658 [inline] batadv_hard_if_event+0x690/0x15b0 net/batman-adv/hard-interface.c:970 notifier_call_chain+0xb9/0x410 kernel/notifier.c:85 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2176 call_netdevice_notifiers_extack net/core/dev.c:2214 [inline] call_netdevice_notifiers net/core/dev.c:2228 [inline] __dev_notify_flags+0x12c/0x2e0 net/core/dev.c:9393 netif_change_flags+0x108/0x160 net/core/dev.c:9422 do_setlink.constprop.0+0xddf/0x44b0 net/core/rtnetlink.c:3152 rtnl_changelink net/core/rtnetlink.c:3769 [inline] __rtnl_newlink net/core/rtnetlink.c:3928 [inline] rtnl_newlink+0x1446/0x2000 net/core/rtnetlink.c:4065 rtnetlink_rcv_msg+0x95b/0xe90 net/core/rtnetlink.c:6955 netlink_rcv_skb+0x16a/0x440 net/netlink/af_netlink.c:2534 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x53a/0x7f0 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x8d1/0xdd0 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg net/socket.c:727 [inline] __sys_sendto+0x495/0x510 net/socket.c:2180 __do_compat_sys_socketcall net/compat.c:475 [inline] __se_compat_sys_socketcall net/compat.c:423 [inline] __ia32_compat_sys_socketcall+0x625/0x770 net/compat.c:423 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0x73/0x120 arch/x86/entry/syscall_32.c:306 do_fast_syscall_32+0x32/0x80 arch/x86/entry/syscall_32.c:331 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf703e579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000ffa78070 EFLAGS: 00000293 ORIG_RAX: 0000000000000066 RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00000000ffa78084 RDX: 0000000000000000 RSI: 00000000f7f04568 RDI: 00000000f73a2ff4 RBP: 00000000f7f04568 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: e8 d2 f1 27 00 call 0x27f1d7 5: 9c pushf 6: 5b pop %rbx 7: 81 e3 00 02 00 00 and $0x200,%ebx d: 31 ff xor %edi,%edi f: 48 89 de mov %rbx,%rsi 12: e8 80 2a 20 00 call 0x202a97 17: 48 85 db test %rbx,%rbx 1a: 0f 85 55 01 00 00 jne 0x175 20: e8 02 2f 20 00 call 0x202f27 25: fb sti 26: 4c 89 e0 mov %r12,%rax * 29: 48 c1 e8 03 shr $0x3,%rax <-- trapping instruction 2d: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) 32: 0f 84 11 ff ff ff je 0xffffff49 38: 4c 89 e7 mov %r12,%rdi 3b: e8 .byte 0xe8 3c: a7 cmpsl %es:(%rdi),%ds:(%rsi) 3d: b2 84 mov $0x84,%dl