watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.4:9462] Modules linked in: irq event stamp: 3810383 hardirqs last enabled at (3810382): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (3810383): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (3715366): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (3715369): [] __irq_exit_rcu+0xcc/0x110 CPU: 1 PID: 9462 Comm: syz-executor.4 Not tainted 6.2.0-rc8-next-20230220 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x1552/0x22d0 Code: 41 83 e0 07 44 38 c2 41 0f 9e c0 84 d2 0f 95 c2 41 84 d0 0f 85 0c 06 00 00 83 e0 07 40 38 c6 0f 9e c2 40 84 f6 0f 95 c0 84 c2 <0f> 85 f5 05 00 00 48 0f bf 41 02 ba 08 00 00 00 4c 89 ef 49 01 c6 RSP: 0018:ffff88806cf09638 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffff86117556 RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffffff86117558 RBP: ffff88806cf09700 R08: 0000000000000001 R09: ffff88806cf096e8 R10: 0000000000038001 R11: 0000000000000000 R12: ffff88806cf09708 R13: ffff88806cf096a8 R14: ffff88806cf09a80 R15: 0000000000000002 FS: 00007f350d2dd700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020004000 CR3: 0000000046ea6000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_node+0x187/0x330 __alloc_skb+0x28c/0x330 skb_copy+0x13d/0x3f0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb08/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x567/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x258/0x8a2 __irq_exit_rcu+0xcc/0x110 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:lock_acquire.part.0+0x10d/0x320 Code: b6 c9 e8 96 88 ff ff b8 ff ff ff ff 48 83 c4 20 65 0f c1 05 65 2c d5 7e 83 f8 01 0f 85 ab 01 00 00 48 85 ed 0f 85 9c 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:ffff88804712f340 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff11008e25e6b RCX: 0000000000000001 RDX: 1ffff11003d0c483 RSI: acf9aa2d26fea78f RDI: 00000000ddf1c8fa RBP: 0000000000000200 R08: 0000000000000000 R09: ffffffff87778947 R10: fffffbfff0eef128 R11: 0000000000000001 R12: ffffffff8560a880 R13: 0000000000000000 R14: ffff88801e861ac0 R15: 0000000000092800 __is_insn_slot_addr+0x41/0x290 kernel_text_address+0x48/0xc0 __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc+0x172/0x320 __create_object+0x3c/0xc90 kmem_cache_alloc+0x204/0x320 mas_alloc_nodes+0x402/0x8a0 mas_node_count_gfp+0x106/0x140 mas_expected_entries+0x117/0x210 dup_mmap+0x445/0x1120 copy_process+0x3b05/0x7390 kernel_clone+0xeb/0x8c0 __do_sys_fork+0x80/0xc0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f350fd67b19 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:00007f350d2dd188 EFLAGS: 00000246 ORIG_RAX: 0000000000000039 RAX: ffffffffffffffda RBX: 00007f350fe7af60 RCX: 00007f350fd67b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f350fdc1f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe060c044f R14: 00007f350d2dd300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.2.0-rc8-next-20230220 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:kasan_check_range+0x158/0x1d0 Code: 6a ff ff ff 48 89 d0 49 39 c2 0f 85 f3 fe ff ff 4c 89 c8 49 0f be 12 83 e0 07 48 39 d0 0f 8d e0 fe ff ff 41 bb 01 00 00 00 5b <5d> 44 89 d8 41 5c e9 21 97 c9 02 48 85 d2 74 e9 48 01 ea eb 09 48 RSP: 0018:ffff88806ce09a10 EFLAGS: 00000246 RAX: fffffbfff0b4ad05 RBX: 0000000000000001 RCX: ffffffff8449700b RDX: fffffbfff0b4ad05 RSI: 0000000000000004 RDI: ffffffff85a56820 RBP: fffffbfff0b4ad04 R08: 0000000000000000 R09: ffffffff85a56823 R10: fffffbfff0b4ad04 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b4ad04 R14: 0000000000000001 R15: 1ffff1100d9c1346 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000562a929c8648 CR3: 000000000ebd0000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: queued_spin_lock_slowpath+0xab/0xc50 do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6de/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x567/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x258/0x8a2 __irq_exit_rcu+0xcc/0x110 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0xf/0x20 Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d e3 05 3b 00 fb f4 e9 5f 13 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffffffff85407e38 EFLAGS: 00000202 RAX: 000000000060f1e9 RBX: ffffffff8542a840 RCX: ffffffff84476c3e RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812846a0 RBP: 0000000000000000 R08: 0000000000000001 R09: ffff88806ce34f83 R10: ffffed100d9c69f0 R11: 0000000000000001 R12: fffffbfff0a85508 R13: ffffffff85d25b10 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x67/0xa0 do_idle+0x300/0x3d0 cpu_startup_entry+0x18/0x20 rest_init+0x166/0x290 arch_call_rest_init+0x13/0x40 start_kernel+0x372/0x530 secondary_startup_64_no_verify+0xe0/0xeb ---------------- Code disassembly (best guess): 0: 41 83 e0 07 and $0x7,%r8d 4: 44 38 c2 cmp %r8b,%dl 7: 41 0f 9e c0 setle %r8b b: 84 d2 test %dl,%dl d: 0f 95 c2 setne %dl 10: 41 84 d0 test %dl,%r8b 13: 0f 85 0c 06 00 00 jne 0x625 19: 83 e0 07 and $0x7,%eax 1c: 40 38 c6 cmp %al,%sil 1f: 0f 9e c2 setle %dl 22: 40 84 f6 test %sil,%sil 25: 0f 95 c0 setne %al 28: 84 c2 test %al,%dl * 2a: 0f 85 f5 05 00 00 jne 0x625 <-- trapping instruction 30: 48 0f bf 41 02 movswq 0x2(%rcx),%rax 35: ba 08 00 00 00 mov $0x8,%edx 3a: 4c 89 ef mov %r13,%rdi 3d: 49 01 c6 add %rax,%r14