watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.2:9622] Modules linked in: irq event stamp: 3247213 hardirqs last enabled at (3247212): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3247213): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (3241620): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3241623): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 9622 Comm: syz-executor.2 Not tainted 6.12.0-next-20241120 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__read_once_word_nocheck+0x0/0x10 Code: 63 77 00 e9 c0 fc ff ff e8 7d 63 77 00 e9 79 fc ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <48> 8b 07 e9 68 72 72 03 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 RSP: 0018:ffff88806ce094b0 EFLAGS: 00000202 RAX: ffff88806ce0a001 RBX: 0000000000000002 RCX: 0000000000000002 RDX: ffff88806ce09601 RSI: ffff88806ce09618 RDI: ffff88806ce09618 RBP: ffff88806ce095d0 R08: ffffffff8677d7c4 R09: ffff88806ce095b8 R10: 000000000003c001 R11: 0000000000003f0f R12: ffff88806ce095d8 R13: ffff88806ce095c0 R14: ffff88806ce09620 R15: ffff88806ce09578 FS: 00007f55af3e4700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f710c9fc998 CR3: 000000000b5cc000 CR4: 0000000000350ef0 Call Trace: unwind_next_frame+0xa75/0x2490 __unwind_start+0x517/0x7c0 arch_stack_walk+0x63/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_node_noprof+0x311/0x3e0 __alloc_skb+0x2ad/0x370 skb_copy+0x1d5/0x3b0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xafb/0x1320 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x546/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa70 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:_raw_spin_unlock_irqrestore+0x34/0x50 Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 66 4e a9 fc 48 89 ef e8 6e c1 a9 fc 80 e7 02 74 06 e8 84 1b d3 fc fb 65 ff 0d 54 bc 7c 7b <74> 07 5b 5d e9 a3 1e 00 00 0f 1f 44 00 00 5b 5d e9 97 1e 00 00 0f RSP: 0018:ffff88803c9070d0 EFLAGS: 00000246 RAX: 000000000031475f RBX: 0000000000000246 RCX: 1ffffffff0fdfab6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8486ea6c RBP: ffff888008c4e900 R08: 0000000000000001 R09: fffffbfff0fdd9f1 R10: ffffffff87eecf8f R11: 00000000000007e0 R12: 0000000000000000 R13: 0000000000000000 R14: ffff888008c4f780 R15: 0000000000000246 __put_partials+0xc4/0x110 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __kernfs_new_node+0xd4/0x850 kernfs_new_node+0x18b/0x250 __kernfs_create_file+0x55/0x360 sysfs_add_file_mode_ns+0x21c/0x440 internal_create_group+0x573/0xeb0 internal_create_groups.part.0+0x90/0x140 sysfs_create_groups+0x29/0x50 device_add+0x680/0x17f0 netdev_register_kobject+0x182/0x3b0 register_netdevice+0x1332/0x1ab0 register_netdev+0x31/0x60 sit_init_net+0x28b/0x5c0 ops_init+0x1e1/0x650 setup_net+0x1d7/0x7a0 copy_net_ns+0x2e3/0x6f0 create_new_namespaces+0x3f6/0xaf0 copy_namespaces+0x45c/0x580 copy_process+0x2704/0x8e90 kernel_clone+0xeb/0x850 __do_sys_clone3+0x1d9/0x260 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f55b1e6eb19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f55af3e4188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f55b1f81f60 RCX: 00007f55b1e6eb19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f55b1ec8f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff1f282cdf R14: 00007f55af3e4300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 7986 Comm: syz-executor.6 Not tainted 6.12.0-next-20241120 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0xb3/0xb60 Code: 49 c1 ee 03 41 83 e5 07 48 b8 00 00 00 00 00 fc ff df 49 01 c6 41 83 c5 03 be 04 00 00 00 48 89 ef e8 b1 0e 05 fd 41 0f b6 06 <41> 38 c5 7c 08 84 c0 0f 85 48 09 00 00 8b 45 00 89 44 24 38 85 c0 RSP: 0018:ffff88806cf099e0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8486f2bf RDX: fffffbfff0c1b639 RSI: 0000000000000004 RDI: ffffffff860db1c0 RBP: ffffffff860db1c0 R08: 0000000000000000 R09: fffffbfff0c1b638 R10: ffffffff860db1c3 R11: 5050505000000011 R12: 1ffff1100d9e133d R13: 0000000000000003 R14: fffffbfff0c1b638 R15: ffff88806cf09a18 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd1385c3428 CR3: 0000000019022000 CR4: 0000000000350ef0 Call Trace: do_raw_spin_lock+0x1de/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6d1/0x1320 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x546/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa70 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:unmap_page_range+0xada/0x3590 Code: 0f 1f 44 00 00 e8 66 3a d8 ff 4c 8b 6c 24 20 e8 5c 3a d8 ff 48 83 7c 24 28 00 0f 84 db 06 00 00 e8 4b 3a d8 ff 48 8b 44 24 28 <48> b9 00 00 00 00 00 fc ff df 48 8d 78 08 48 89 f8 48 c1 e8 03 0f RSP: 0018:ffff88800c4df688 EFLAGS: 00000293 RAX: ffff88800c4df930 RBX: ffff888019a08b30 RCX: ffffffff8179c842 RDX: ffff88803a321b80 RSI: ffffffff8179c875 RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000000 R09: fffff94000164816 R10: 0000000000000000 R11: ffff8880132484a8 R12: 800000002c903007 R13: ffffea0000b240c0 R14: 00007f9202766000 R15: ffff88800c4dfad0 unmap_single_vma+0x19a/0x2b0 unmap_vmas+0x1f1/0x450 exit_mmap+0x187/0xac0 mmput+0xd5/0x350 do_exit+0x9ae/0x2a30 do_group_exit+0xd3/0x2a0 get_signal+0x2240/0x2320 arch_do_signal_or_restart+0x81/0x780 syscall_exit_to_user_mode+0x123/0x1e0 do_syscall_64+0xcc/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9202cb3b19 Code: Unable to access opcode bytes at 0x7f9202cb3aef. RSP: 002b:00007f9200229218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f9202dc6f68 RCX: 00007f9202cb3b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f9202dc6f68 RBP: 00007f9202dc6f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9202dc6f6c R13: 00007ffdd5f8319f R14: 00007f9200229300 R15: 0000000000022000 audit: type=1400 audit(1732121490.376:16): avc: denied { relabelto } for pid=9675 comm="syz-executor.5" name="file1" dev="sda" ino=16001 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:framebuf_device_t:s0 tclass=file permissive=1 Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3 Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 Bluetooth: hci1: command tx timeout Bluetooth: hci5: command tx timeout Bluetooth: hci1: command tx timeout Bluetooth: hci5: command tx timeout ---------------- Code disassembly (best guess): 0: 63 77 00 movslq 0x0(%rdi),%esi 3: e9 c0 fc ff ff jmpq 0xfffffcc8 8: e8 7d 63 77 00 callq 0x77638a d: e9 79 fc ff ff jmpq 0xfffffc8b 12: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 19: 00 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: 90 nop 23: 90 nop 24: 90 nop 25: 90 nop 26: 90 nop 27: 90 nop 28: 90 nop 29: 90 nop * 2a: 48 8b 07 mov (%rdi),%rax <-- trapping instruction 2d: e9 68 72 72 03 jmpq 0x372729a 32: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 39: 00 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop