watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.5:9924] Modules linked in: irq event stamp: 3064285 hardirqs last enabled at (3064284): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3064285): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2997270): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2997273): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 9924 Comm: syz-executor.5 Not tainted 6.13.0-rc1-next-20241205 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_access_ok+0xe1/0x1d0 Code: c1 ea 03 80 3c 02 00 0f 85 e5 00 00 00 48 8b 73 28 48 89 da 48 89 ef e8 fd 19 f5 ff 85 c0 74 13 31 c0 48 83 c4 08 5b 5d 41 5c <41> 5d 41 5e e9 76 87 72 03 48 b8 00 00 00 00 00 fc ff df 48 8d 7b RSP: 0018:ffff88806ce094b0 EFLAGS: 00000282 RAX: ffff888038ff8001 RBX: 0000000000000001 RCX: 0000000000000001 RDX: ffff888038ff7501 RSI: ffff888038ff75d8 RDI: ffff88806ce09548 RBP: ffff88806ce09590 R08: ffffffff8683dfb6 R09: ffff88806ce09578 R10: 000000000003c001 R11: 0000000000023d6e R12: ffff88806ce09598 R13: ffff888038ff0000 R14: ffff888038ff75e0 R15: ffff88806ce09538 FS: 00007f153b587700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200da000 CR3: 00000000164d8000 CR4: 0000000000350ef0 Call Trace: unwind_next_frame+0xa5c/0x2490 arch_stack_walk+0x87/0xf0 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 kmalloc_reserve+0x189/0x2b0 __alloc_skb+0x162/0x370 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/0xa80 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:lock_acquire.part.0+0x10e/0x320 Code: b6 c9 e8 35 a7 ff ff b8 ff ff ff ff 48 83 c4 28 65 0f c1 05 cc 5b d2 7e 83 f8 01 0f 85 aa 01 00 00 48 85 ed 0f 85 9b 01 00 00 <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7 RSP: 0018:ffff888038ff73f8 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff110071fee82 RCX: 1ffff110071fee67 RDX: 1ffff11003c334c0 RSI: 0000000000000001 RDI: 00000000a49412a8 RBP: 0000000000000200 R08: 0000000000000000 R09: fffffbfff0fde3e4 R10: ffffffff87ef1f27 R11: 0000000000000000 R12: ffff88806ce41558 R13: 0000000000028242 R14: ffffea0000a09080 R15: ffff88806ce41540 _raw_spin_trylock+0x46/0x60 free_frozen_pages+0x3af/0xe40 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_noprof+0x300/0x3d0 security_inode_alloc+0x3e/0x130 inode_init_always_gfp+0xc94/0xff0 alloc_inode+0x89/0x240 new_inode+0x1c/0x190 proc_pid_make_inode+0x21/0x170 proc_pident_instantiate+0x85/0x320 proc_pident_lookup+0x211/0x2a0 __lookup_slow+0x252/0x470 walk_component+0x345/0x5b0 link_path_walk.part.0+0x683/0xd50 path_openat+0x2e3/0x2980 do_filp_open+0x1e9/0x450 do_sys_openat2+0x164/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f153dfc4a04 Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44 RSP: 002b:00007f153b5870b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f153e124f60 RCX: 00007f153dfc4a04 RDX: 0000000000000000 RSI: 00007f153e06af82 RDI: 00000000ffffff9c RBP: 00007f153e06af82 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007ffcc404f16f R14: 00007f153b587300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.13.0-rc1-next-20241205 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x242/0xb60 Code: 02 48 89 e8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 85 08 00 00 b8 01 00 00 00 66 89 45 00 e9 bf fe ff ff 89 44 24 38 f3 90 5b fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 RSP: 0018:ffff88806cf099e0 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff8487108f RDX: fffffbfff0c1b94d RSI: 0000000000000004 RDI: ffffffff860dca60 RBP: ffffffff860dca60 R08: 0000000000000000 R09: fffffbfff0c1b94c R10: ffffffff860dca63 R11: 0000000000000001 R12: 1ffff1100d9e133d R13: 0000000000000003 R14: fffffbfff0c1b94c R15: ffff88806cf09a18 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc7bdf2000 CR3: 0000000013174000 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/0xa80 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:default_idle+0x1e/0x30 Code: 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 eb 0c 0f 1f 44 00 00 0f 00 2d e9 95 3d 00 0f 1f 44 00 00 fb f4 e9 fc 2e 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff8880096cfe68 EFLAGS: 00000206 RAX: 00000000000fcc55 RBX: 0000000000000001 RCX: ffffffff8484e837 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812b180a RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e6cba R10: ffff88806cf365d3 R11: 0000000000000000 R12: ffffffff863fae90 R13: 1ffff110012d9fd2 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x6d/0xb0 do_idle+0x2fa/0x3b0 cpu_startup_entry+0x4f/0x60 start_secondary+0x1c1/0x220 common_startup_64+0x12c/0x138 Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci0: command 0x0406 tx timeout Bluetooth: hci6: command 0x0406 tx timeout Bluetooth: hci1: command 0x0406 tx timeout ---------------- Code disassembly (best guess): 0: c1 ea 03 shr $0x3,%edx 3: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 7: 0f 85 e5 00 00 00 jne 0xf2 d: 48 8b 73 28 mov 0x28(%rbx),%rsi 11: 48 89 da mov %rbx,%rdx 14: 48 89 ef mov %rbp,%rdi 17: e8 fd 19 f5 ff callq 0xfff51a19 1c: 85 c0 test %eax,%eax 1e: 74 13 je 0x33 20: 31 c0 xor %eax,%eax 22: 48 83 c4 08 add $0x8,%rsp 26: 5b pop %rbx 27: 5d pop %rbp 28: 41 5c pop %r12 * 2a: 41 5d pop %r13 <-- trapping instruction 2c: 41 5e pop %r14 2e: e9 76 87 72 03 jmpq 0x37287a9 33: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 3a: fc ff df 3d: 48 rex.W 3e: 8d .byte 0x8d 3f: 7b .byte 0x7b