------------[ cut here ]------------ workqueue: cannot queue hci_cmd_timeout on wq hci0 WARNING: CPU: 0 PID: 5397 at kernel/workqueue.c:2258 __queue_work+0xdf6/0x1090 kernel/workqueue.c:2256 Modules linked in: CPU: 0 UID: 0 PID: 5397 Comm: syz-executor Not tainted 6.14.0-rc5-syzkaller-00025-gcfced12f5100 #0 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+0xdf6/0x1090 kernel/workqueue.c:2256 Code: e8 03 80 3c 28 00 74 08 4c 89 ff e8 a4 ee 9f 00 49 8b 37 49 81 c5 78 01 00 00 48 c7 c7 60 e6 29 8c 4c 89 ea e8 bb 6f f8 ff 90 <0f> 0b 90 90 e9 66 f4 ff ff e8 2c b3 38 00 90 0f 0b 90 e9 ad fc ff RSP: 0018:ffffc90000007b08 EFLAGS: 00010046 RAX: b6ae574748ee3200 RBX: 0000000000000100 RCX: ffff888000c48000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffffff81818e32 R09: 1ffff11003f8519a R10: dffffc0000000000 R11: ffffed1003f8519b R12: 1ffff1100253e638 R13: ffff8880129f3178 R14: 0000000000000008 R15: ffff8880422d0948 FS: 0000555560a95500(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0321ba2008 CR3: 0000000034b56000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: call_timer_fn+0x187/0x650 kernel/time/timer.c:1789 expire_timers kernel/time/timer.c:1835 [inline] __run_timers kernel/time/timer.c:2414 [inline] __run_timer_base+0x695/0x8e0 kernel/time/timer.c:2426 run_timer_base kernel/time/timer.c:2435 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2445 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__pagetable_ctor+0x2c8/0x3a0 include/linux/mm.h:3001 Code: 4c 21 f3 75 65 e8 08 00 b0 ff 48 8b 5c 24 18 4d 85 ed 75 07 e8 f9 ff af ff eb 06 e8 f2 ff af ff fb 48 c7 44 24 20 0e 36 e0 45 <49> c7 04 1f 00 00 00 00 66 41 c7 44 1f 09 00 00 41 c6 44 1f 0b 00 RSP: 0018:ffffc9000d3d74e0 EFLAGS: 00000293 RAX: ffffffff8211cf2e RBX: 1ffff92001a7aea0 RCX: ffff888000c48000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000d3d75b0 R08: ffffffff8211cf0e R09: 1ffffffff28a931f R10: dffffc0000000000 R11: fffffbfff28a9320 R12: 0000000000000001 R13: 0000000000000200 R14: 0000000000000046 R15: dffffc0000000000 pagetable_pud_ctor include/linux/mm.h:3154 [inline] __pud_alloc_one_noprof include/asm-generic/pgalloc.h:176 [inline] pud_alloc_one_noprof include/asm-generic/pgalloc.h:193 [inline] __pud_alloc+0xaa/0x2b0 mm/memory.c:6441 pud_alloc include/linux/mm.h:2857 [inline] copy_pud_range mm/memory.c:1279 [inline] copy_p4d_range mm/memory.c:1323 [inline] copy_page_range+0xb30/0xe90 mm/memory.c:1421 dup_mmap kernel/fork.c:748 [inline] dup_mm kernel/fork.c:1700 [inline] copy_mm+0x1269/0x2160 kernel/fork.c:1752 copy_process+0x17d1/0x3cf0 kernel/fork.c:2403 kernel_clone+0x226/0x8e0 kernel/fork.c:2815 __do_sys_clone kernel/fork.c:2958 [inline] __se_sys_clone kernel/fork.c:2942 [inline] __x64_sys_clone+0x267/0x2e0 kernel/fork.c:2942 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f03219839d3 Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 RSP: 002b:00007fff86b085d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f03219839d3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000555560a957d0 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff86b08748 R14: 0000000000000009 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 4c 21 f3 and %r14,%rbx 3: 75 65 jne 0x6a 5: e8 08 00 b0 ff call 0xffb00012 a: 48 8b 5c 24 18 mov 0x18(%rsp),%rbx f: 4d 85 ed test %r13,%r13 12: 75 07 jne 0x1b 14: e8 f9 ff af ff call 0xffb00012 19: eb 06 jmp 0x21 1b: e8 f2 ff af ff call 0xffb00012 20: fb sti 21: 48 c7 44 24 20 0e 36 movq $0x45e0360e,0x20(%rsp) 28: e0 45 * 2a: 49 c7 04 1f 00 00 00 movq $0x0,(%r15,%rbx,1) <-- trapping instruction 31: 00 32: 66 41 c7 44 1f 09 00 movw $0x0,0x9(%r15,%rbx,1) 39: 00 3a: 41 c6 44 1f 0b 00 movb $0x0,0xb(%r15,%rbx,1)