watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.7:7680] Modules linked in: irq event stamp: 2018549 hardirqs last enabled at (2018548): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2018549): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (1990880): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (1990907): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 7680 Comm: syz-executor.7 Not tainted 6.13.0-rc1-next-20241206 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_access_ok+0x55/0x1d0 Code: c0 74 08 3c 03 0f 8e 4b 01 00 00 8b 0b 85 c9 74 65 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 08 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 30 01 00 00 48 8d 7b 10 4c 8b 6b 08 48 b8 00 00 00 00 00 fc RSP: 0018:ffff88806ce094d0 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff88806ce09578 RCX: 0000000000000002 RDX: 1ffff1100d9c12b0 RSI: ffff88806ce09da8 RDI: ffff88806ce09580 RBP: ffff88806ce09da8 R08: 0000000000000001 R09: ffff88806ce095b8 R10: 000000000003a7a3 R11: 00000000000ba5a9 R12: 0000000000000008 R13: ffff88806ce095c0 R14: ffff88806ce09da8 R15: ffff88806ce09578 FS: 00007f357ccca700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000019afe000 CR4: 0000000000350ef0 Call Trace: unwind_next_frame+0xc56/0x2490 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 __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/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:put_cpu_partial+0x10a/0x1b0 Code: 24 28 75 5b 49 c7 44 24 28 00 00 00 00 4c 89 e7 48 8d 35 00 00 00 00 e8 f4 a9 ab ff 4d 85 ed 74 06 e8 da 71 d5 ff fb 4d 85 f6 <74> 1c 5b 4c 89 f6 48 89 ef 5d 41 5c 41 5d 41 5e e9 c1 fa ff ff 44 RSP: 0018:ffff888040cc7c40 EFLAGS: 00000246 RAX: 00000000001e60f9 RBX: ffffea0000608c80 RCX: 1ffffffff0fdfcae RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81a47976 RBP: ffff888009406640 R08: 0000000000000001 R09: fffffbfff0fddbe9 R10: ffffffff87eedf4f R11: 0000000000000000 R12: ffff88806ce421c0 R13: 0000000000000200 R14: 0000000000000000 R15: ffff8880182334b8 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 getname_flags.part.0+0x48/0x550 getname+0x8f/0xd0 do_sys_openat2+0xec/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f357f707a04 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:00007f357ccca060 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f357f867f60 RCX: 00007f357f707a04 RDX: 0000000000000002 RSI: 00007f357ccca0f0 RDI: 00000000ffffff9c RBP: 00007f357ccca0f0 R08: 0000000000000000 R09: 00007f357ccc9f70 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 00007ffd9838d63f R14: 00007f357ccca300 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-20241206 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:kasan_check_range+0x161/0x1b0 Code: 49 8d 04 2c 48 85 d2 75 b0 48 89 da 48 29 c2 e9 4c ff ff ff 48 85 d2 74 b6 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 a8 80 38 00 <74> f2 e9 77 ff ff ff b8 01 00 00 00 e9 0e 87 fb 02 48 29 c3 48 89 RSP: 0018:ffff88806cf099c0 EFLAGS: 00000246 RAX: fffffbfff0c1b97c RBX: fffffbfff0c1b97d RCX: ffffffff84a7409f RDX: fffffbfff0c1b97d RSI: 0000000000000004 RDI: ffffffff860dcbe0 RBP: fffffbfff0c1b97c R08: 0000000000000000 R09: fffffbfff0c1b97c R10: ffffffff860dcbe3 R11: 0000000000000001 R12: 1ffff1100d9e133d R13: 0000000000000003 R14: fffffbfff0c1b97c R15: ffff88806cf09a18 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055614195f5c8 CR3: 0000000014ce4000 CR4: 0000000000350ef0 Call Trace: queued_spin_lock_slowpath+0xaf/0xb60 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 79 67 1d 00 0f 1f 44 00 00 fb f4 e9 ec 2e 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff8880096cfe68 EFLAGS: 00000202 RAX: 0000000000145345 RBX: 0000000000000001 RCX: ffffffff84a51847 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff814b16aa RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e6cba R10: ffff88806cf365d3 R11: 0000000000000000 R12: ffffffff863fb690 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 ---------------- Code disassembly (best guess): 0: c0 74 08 3c 03 shlb $0x3,0x3c(%rax,%rcx,1) 5: 0f 8e 4b 01 00 00 jle 0x156 b: 8b 0b mov (%rbx),%ecx d: 85 c9 test %ecx,%ecx f: 74 65 je 0x76 11: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 18: fc ff df 1b: 48 8d 7b 08 lea 0x8(%rbx),%rdi 1f: 48 89 fa mov %rdi,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) * 2a: 0f 85 30 01 00 00 jne 0x160 <-- trapping instruction 30: 48 8d 7b 10 lea 0x10(%rbx),%rdi 34: 4c 8b 6b 08 mov 0x8(%rbx),%r13 38: 48 rex.W 39: b8 00 00 00 00 mov $0x0,%eax 3e: 00 fc add %bh,%ah