------------[ cut here ]------------ WARNING: CPU: 1 PID: 5933 at kernel/workqueue.c:2257 __queue_work+0xcd3/0xf50 kernel/workqueue.c:2256 Modules linked in: CPU: 1 UID: 0 PID: 5933 Comm: syz-executor Not tainted 6.12.0-rc5-syzkaller-00330-ga33ab3f94f51 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__queue_work+0xcd3/0xf50 kernel/workqueue.c:2256 Code: ff e8 f1 ad 37 00 90 0f 0b 90 e9 1e fd ff ff e8 e3 ad 37 00 eb 13 e8 dc ad 37 00 eb 0c e8 d5 ad 37 00 eb 05 e8 ce ad 37 00 90 <0f> 0b 90 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc RSP: 0018:ffffc90000a18b28 EFLAGS: 00010046 RAX: ffffffff815d2bbd RBX: 0000000000000100 RCX: ffff88802cc31e00 RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000 RBP: 0000000000010000 R08: ffffffff815d1fe8 R09: 1ffffffff203a135 R10: dffffc0000000000 R11: ffffffff815d33f0 R12: ffff88807bb6e800 R13: ffff88807bb6e9c0 R14: dffffc0000000000 R15: 0000000000000008 FS: 0000555583259500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc025f32008 CR3: 000000007b19a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: call_timer_fn+0x18e/0x650 kernel/time/timer.c:1794 expire_timers kernel/time/timer.c:1840 [inline] __run_timers kernel/time/timer.c:2419 [inline] __run_timer_base+0x695/0x8e0 kernel/time/timer.c:2430 run_timer_base kernel/time/timer.c:2439 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 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:orc_ip arch/x86/kernel/unwind_orc.c:80 [inline] RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:102 [inline] RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline] RIP: 0010:unwind_next_frame+0x6d5/0x22d0 arch/x86/kernel/unwind_orc.c:494 Code: 89 c1 48 c1 f9 02 48 c1 e8 3f 48 01 c8 48 83 e0 fe 49 8d 1c 46 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 <84> c0 75 27 48 63 03 48 01 d8 48 8d 4b 04 4c 39 f8 4c 0f 46 f1 48 RSP: 0018:ffffc90003e771b0 EFLAGS: 00000a06 RAX: 0000000000000000 RBX: ffffffff905613d8 RCX: dffffc0000000000 RDX: 00000000000b0001 RSI: ffffffff90dfb40e RDI: ffffffff814156e0 RBP: ffffffff905613f0 R08: 000000000000000d R09: ffffc90003e77370 R10: ffffc90003e772d0 R11: ffffffff81809200 R12: ffffffff905613c0 R13: ffffffff905613c0 R14: ffffffff905613c0 R15: ffffffff854e740b arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:257 [inline] __kmalloc_cache_noprof+0x19c/0x2c0 mm/slub.c:4295 kmalloc_noprof include/linux/slab.h:878 [inline] kzalloc_noprof include/linux/slab.h:1014 [inline] vhci_open+0x57/0x360 drivers/bluetooth/hci_vhci.c:634 misc_open+0x2cc/0x340 drivers/char/misc.c:165 chrdev_open+0x521/0x600 fs/char_dev.c:414 do_dentry_open+0x978/0x1460 fs/open.c:958 vfs_open+0x3e/0x330 fs/open.c:1088 do_open fs/namei.c:3774 [inline] path_openat+0x2c84/0x3590 fs/namei.c:3933 do_filp_open+0x235/0x490 fs/namei.c:3960 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415 do_sys_open fs/open.c:1430 [inline] __do_sys_openat fs/open.c:1446 [inline] __se_sys_openat fs/open.c:1441 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1441 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: 0033:0x7fc025d7d031 Code: 75 57 89 f0 25 00 00 41 00 3d 00 00 41 00 74 49 80 3d 1a 05 19 00 00 74 6d 89 da 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 93 00 00 00 48 8b 54 24 28 64 48 2b 14 25 RSP: 002b:00007fff4c222600 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fc025d7d031 RDX: 0000000000000002 RSI: 00007fc025df1bd4 RDI: 00000000ffffff9c RBP: 00007fc025df1bd4 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff4c222770 R13: 00007fff4c222778 R14: 0000000000000009 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 89 c1 mov %eax,%ecx 2: 48 c1 f9 02 sar $0x2,%rcx 6: 48 c1 e8 3f shr $0x3f,%rax a: 48 01 c8 add %rcx,%rax d: 48 83 e0 fe and $0xfffffffffffffffe,%rax 11: 49 8d 1c 46 lea (%r14,%rax,2),%rbx 15: 48 89 d8 mov %rbx,%rax 18: 48 c1 e8 03 shr $0x3,%rax 1c: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 23: fc ff df 26: 0f b6 04 08 movzbl (%rax,%rcx,1),%eax * 2a: 84 c0 test %al,%al <-- trapping instruction 2c: 75 27 jne 0x55 2e: 48 63 03 movslq (%rbx),%rax 31: 48 01 d8 add %rbx,%rax 34: 48 8d 4b 04 lea 0x4(%rbx),%rcx 38: 4c 39 f8 cmp %r15,%rax 3b: 4c 0f 46 f1 cmovbe %rcx,%r14 3f: 48 rex.W