watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.6:13451] Modules linked in: irq event stamp: 2890687 hardirqs last enabled at (2890686): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2890687): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2861026): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2861045): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 13451 Comm: syz-executor.6 Not tainted 6.13.0-rc2-next-20241210 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 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 ec 58 b2 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:ffff88806ce09458 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff1100d9c128e RCX: 1ffff1100d9c1273 RDX: 1ffff11001e6c838 RSI: 0000000000000001 RDI: 000000002e1ce1be RBP: 0000000000000200 R08: 0000000000000000 R09: fffffbfff0fddddc R10: ffffffff87eeeee7 R11: 0000000000000003 R12: ffffffff85c16180 R13: 0000000000000000 R14: ffff88800f363780 R15: 0000000000092820 FS: 00007f6e665f2700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33425000 CR3: 0000000035bac000 CR4: 0000000000350ef0 Call Trace: __is_insn_slot_addr+0x3f/0x290 kernel_text_address+0x48/0xc0 __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/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 __netdev_alloc_skb+0x7a/0x7c0 __ieee80211_beacon_get+0x3f4/0xfc0 ieee80211_beacon_get_tim+0xa6/0x280 mac80211_hwsim_beacon_tx+0x49b/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:free_frozen_page_commit+0xf1/0xd60 Code: 48 8d 58 06 48 c1 e6 04 48 c1 e3 04 49 8d 7c 34 20 4c 01 e3 48 be 00 00 00 00 00 fc ff df 49 89 f9 49 c1 e9 03 41 80 3c 31 00 <0f> 85 58 09 00 00 48 be 00 00 00 00 00 fc ff df 48 c1 e0 04 4a 8b RSP: 0018:ffff88802cd279c8 EFLAGS: 00000246 RAX: 0000000000000009 RBX: ffff88806ce41630 RCX: 0000000000000003 RDX: 0000000000000008 RSI: dffffc0000000000 RDI: ffff88806ce41630 RBP: ffff88807ffdcb80 R08: 0000000000000003 R09: 1ffff1100d9c82c6 R10: ffffffff87eeeee7 R11: 00000000000007e0 R12: ffff88806ce41540 R13: ffffea0000fe5a00 R14: 1ffff110059a4f41 R15: ffffea0000fe5a08 free_frozen_pages+0x638/0xe40 __put_partials+0xd8/0x110 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_lru_noprof+0x303/0x3c0 __d_alloc+0x31/0x990 d_alloc_pseudo+0x1d/0xc0 alloc_file_pseudo+0xcc/0x200 sock_alloc_file+0x53/0x1d0 __sys_socket+0x1bc/0x260 __x64_sys_socket+0x73/0xb0 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6e6907cb19 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:00007f6e665f2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f6e6918ff60 RCX: 00007f6e6907cb19 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002 RBP: 00007f6e690d6f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc43a10f5f R14: 00007f6e665f2300 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-rc2-next-20241210 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__hrtimer_run_queues+0x280/0xa80 Code: e8 03 42 0f b6 04 38 84 c0 74 06 0f 8e 83 07 00 00 41 0f b6 5d 38 31 ff 83 e3 01 89 de e8 e8 99 11 00 84 db 0f 84 79 06 00 00 0b 97 11 00 48 8b 44 24 08 48 c1 e8 03 42 0f b6 04 38 84 c0 74 RSP: 0018:ffff88806cf09e38 EFLAGS: 00000092 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff84a1b603 RDX: ffff88800961d340 RSI: ffffffff84a1b622 RDI: ffff88801c017028 RBP: ffff88806cf2d108 R08: 0000000000000000 R09: fffffbfff0c7f792 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 R13: ffff88801c017028 R14: ffff88806cf2d0c0 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005603024fc618 CR3: 0000000015efe000 CR4: 0000000000350ef0 Call Trace: 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:finish_task_switch.isra.0+0x20f/0x840 Code: 4c 89 ff 48 c7 03 00 00 00 00 e8 6c b2 61 03 4d 85 e4 75 ba 4c 89 ff e8 df 98 61 03 e8 aa 10 34 00 fb 65 48 8b 1d b1 c8 bd 7e <48> 8d bb d0 14 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 RSP: 0018:ffff8880096cfcd0 EFLAGS: 00000202 RAX: 0000000000105b25 RBX: ffff88800961d340 RCX: 1ffffffff0c7f049 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8145de46 RBP: ffff8880096cfd10 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff863fbc97 R11: 0000000000000000 R12: ffff88806cf3b9d8 R13: ffff8880095ed340 R14: ffff88806cf3b9d8 R15: ffff88806cf3b9c0 __schedule+0xc53/0x3030 schedule_idle+0x5c/0x90 do_idle+0x251/0x3b0 cpu_startup_entry+0x4f/0x60 start_secondary+0x1c1/0x220 common_startup_64+0x12c/0x138 ---------------- Code disassembly (best guess): 0: b6 c9 mov $0xc9,%dh 2: e8 35 a7 ff ff callq 0xffffa73c 7: b8 ff ff ff ff mov $0xffffffff,%eax c: 48 83 c4 28 add $0x28,%rsp 10: 65 0f c1 05 ec 58 b2 xadd %eax,%gs:0x7eb258ec(%rip) # 0x7eb25904 17: 7e 18: 83 f8 01 cmp $0x1,%eax 1b: 0f 85 aa 01 00 00 jne 0x1cb 21: 48 85 ed test %rbp,%rbp 24: 0f 85 9b 01 00 00 jne 0x1c5 * 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction 31: fc ff df 34: 48 01 c3 add %rax,%rbx 37: 48 c7 03 00 00 00 00 movq $0x0,(%rbx) 3e: 48 rex.W 3f: c7 .byte 0xc7