rcu_tasks_wait_gp: rcu_tasks grace period number 21 (since boot) is 14882 jiffies old. watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.3:12163] Modules linked in: irq event stamp: 2600837 hardirqs last enabled at (2600836): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2600837): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2592578): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2592589): [] irq_exit_rcu+0x94/0xc0 CPU: 0 UID: 0 PID: 12163 Comm: syz-executor.3 Not tainted 6.12.0-rc5-next-20241104 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:core_kernel_text+0x6/0xa0 Code: 5d e9 de e7 63 03 48 89 ef 5d e9 75 4f 1c 00 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 54 <53> 48 89 fb 48 81 ff 00 00 00 81 72 09 48 81 ff 00 00 c0 84 72 5f RSP: 0018:ffff88806ce09608 EFLAGS: 00000296 RAX: dffffc0000000000 RBX: ffffffff81846b5a RCX: ffffffff86bf7201 RDX: 1ffff1100d9c12d6 RSI: 0000000000000000 RDI: ffffffff81846b5a RBP: ffffffff81846b5a R08: ffffffff86bf72d8 R09: ffff88806ce09698 R10: 000000000003c001 R11: 00000000000c3705 R12: ffff88806ce09720 R13: 0000000000000000 R14: ffff888015ea3700 R15: 0000000000000820 FS: 00007f0e88951700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f65355f7b58 CR3: 000000000baa2000 CR4: 0000000000350ef0 Call Trace: kernel_text_address+0x11/0xc0 __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_node_noprof+0x14c/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+0x94/0xc0 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 54 9f ab ff 4d 85 ed 74 06 e8 2a 6d 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:ffff888038717c30 EFLAGS: 00000246 RAX: 0000000000278f4b RBX: ffffea00002f9400 RCX: 1ffffffff0fde6ae RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81846b56 RBP: ffff888008cc2140 R08: 0000000000000001 R09: fffffbfff0fdc5e9 R10: ffffffff87ee2f4f R11: 0000000000000000 R12: ffff88806ce40620 R13: 0000000000000200 R14: 0000000000000000 R15: ffff88800be50200 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 __kmalloc_node_noprof+0x36c/0x4a0 __kvmalloc_node_noprof+0x178/0x200 __do_sys_add_key+0x311/0x430 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0e8b3dbb19 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:00007f0e88951188 EFLAGS: 00000246 ORIG_RAX: 00000000000000f8 RAX: ffffffffffffffda RBX: 00007f0e8b4eef60 RCX: 00007f0e8b3dbb19 RDX: 0000000020000280 RSI: 0000000020000240 RDI: 0000000020000200 RBP: 00007f0e8b435f6d R08: 00000000009818d9 R09: 0000000000000000 R10: 00000000000000f6 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd52cc4d3f R14: 00007f0e88951300 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 6.12.0-rc5-next-20241104 #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:ffff88806cf099e8 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff8485c27f RDX: fffffbfff0c1b4d5 RSI: 0000000000000004 RDI: ffffffff860da6a0 RBP: ffffffff860da6a0 R08: 0000000000000000 R09: fffffbfff0c1b4d4 R10: ffffffff860da6a3 R11: 5050505000000011 R12: 1ffff1100d9e133e R13: 0000000000000003 R14: fffffbfff0c1b4d4 R15: ffff88806cf09a20 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbc58c67db8 CR3: 0000000016b9a000 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+0x94/0xc0 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 a9 df 3e 00 0f 1f 44 00 00 fb f4 e9 1c 2e 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff8880096c7e68 EFLAGS: 00000202 RAX: 0000000000114c13 RBX: 0000000000000001 RCX: ffffffff84839b17 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812ae2ca RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e6cba R10: ffff88806cf365d3 R11: 0000000000000000 R12: ffffffff863f7790 R13: 1ffff110012d8fd2 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: 5d pop %rbp 1: e9 de e7 63 03 jmpq 0x363e7e4 6: 48 89 ef mov %rbp,%rdi 9: 5d pop %rbp a: e9 75 4f 1c 00 jmpq 0x1c4f84 f: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 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: 66 0f 1f 00 nopw (%rax) 28: 41 54 push %r12 * 2a: 53 push %rbx <-- trapping instruction 2b: 48 89 fb mov %rdi,%rbx 2e: 48 81 ff 00 00 00 81 cmp $0xffffffff81000000,%rdi 35: 72 09 jb 0x40 37: 48 81 ff 00 00 c0 84 cmp $0xffffffff84c00000,%rdi 3e: 72 5f jb 0x9f