watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.0:4745] Modules linked in: irq event stamp: 4680455 hardirqs last enabled at (4680454): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4680455): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (4609256): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (4609259): [] __irq_exit_rcu+0xcc/0x110 CPU: 0 PID: 4745 Comm: syz-executor.0 Not tainted 6.3.0-rc2-next-20230315 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0x0/0x170 Code: 4c 89 ef e8 d2 34 46 00 e9 ac fd ff ff 48 89 df e8 95 34 46 00 e9 3e fd ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 55 53 48 89 fb 48 83 c7 RSP: 0018:ffff88806ce097f8 EFLAGS: 00000286 RAX: ffffffff8361aa22 RBX: ffffffff813a5940 RCX: 0000000000000001 RDX: 1ffff1100d9c130b RSI: ffffffff8361aa22 RDI: ffff88806ce098c8 RBP: ffff88806ce09898 R08: 0000000000000001 R09: ffff88806ce09840 R10: 0000000000038001 R11: 0000000000000001 R12: ffff88806ce098c8 R13: 0000000000000000 R14: ffff888045adb580 R15: ffff88800d532ab0 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc1068e4ae0 CR3: 0000000005482000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x77/0xf0 stack_trace_save+0x90/0xd0 set_track_prepare+0x74/0xd0 __create_object+0x3b2/0xc90 kmem_cache_alloc_node+0x21f/0x330 kmalloc_reserve+0x169/0x270 __alloc_skb+0x129/0x330 __netdev_alloc_skb+0x72/0x370 __ieee80211_beacon_get+0x3d9/0x13c0 ieee80211_beacon_get_tim+0x99/0x540 mac80211_hwsim_beacon_tx+0x1d2/0xb10 __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:__sanitizer_cov_trace_pc+0x4/0x70 Code: 00 e8 a0 ff ff ff 31 c0 e9 4d fc ff 02 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <65> 8b 05 2d 10 b8 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b RSP: 0018:ffff8880445c76c8 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff816f833f RDX: ffff888045adb580 RSI: 0000000000000000 RDI: 0000000000000005 RBP: ffff88800efe2400 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: ffff8880445c7ad8 R14: dffffc0000000000 R15: 00000000ffffffd6 trace_rss_stat+0x180/0x250 unmap_page_range+0x1297/0x2db0 unmap_single_vma+0x19a/0x2b0 unmap_vmas+0x233/0x390 exit_mmap+0x15e/0x960 mmput+0xd5/0x390 do_exit+0x9c6/0x2800 do_group_exit+0xd4/0x2a0 get_signal+0x23c8/0x2450 arch_do_signal_or_restart+0x79/0x590 exit_to_user_mode_prepare+0xeb/0x180 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7ff4398f3b19 Code: Unable to access opcode bytes at 0x7ff4398f3aef. RSP: 002b:00007ff436e69188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: 0000000000000007 RBX: 00007ff439a06f60 RCX: 00007ff4398f3b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080 RBP: 00007ff43994df6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff2f0e731f R14: 00007ff436e69300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.3.0-rc2-next-20230315 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lapic_next_deadline+0x25/0x50 Code: 90 90 90 90 90 f3 0f 1e fa 0f ae f0 0f ae e8 0f 31 48 c1 e2 20 b9 e0 06 00 00 48 09 c2 48 8d 04 fa 48 89 c2 48 c1 ea 20 0f 30 <66> 90 31 c0 e9 96 fe 3a 03 48 89 c6 31 d2 bf e0 06 00 00 e8 a3 20 RSP: 0018:ffff88806cf09ee0 EFLAGS: 00000017 RAX: 000000e8e923e8bc RBX: 0000000000000000 RCX: 00000000000006e0 RDX: 00000000000000e8 RSI: ffff88806cf28140 RDI: 000000000005385a RBP: ffff88806cf28140 R08: 0000000000000007 R09: 0000000000000000 R10: 00000000000ef153 R11: 0000000000000001 R12: 000000000005385a R13: 0000000000000000 R14: 0000000000000000 R15: ffff88806cf2b8c0 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc106a4e650 CR3: 000000000e45a000 CR4: 0000000000350ee0 Call Trace: clockevents_program_event+0x248/0x360 tick_program_event+0xa4/0x140 hrtimer_interrupt+0x340/0x750 __sysvec_apic_timer_interrupt+0xff/0x4a0 sysvec_apic_timer_interrupt+0x69/0x90 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 33 1d 39 00 fb f4 e9 ef 12 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff888008e1fe68 EFLAGS: 00000206 RAX: 00000000001e61f9 RBX: 0000000000000001 RCX: ffffffff8449556e RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81285575 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffff88806cf34f83 R10: ffffed100d9e69f0 R11: 0000000000000001 R12: ffffffff85d2a190 R13: 1ffff110011c3fd2 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x67/0xa0 do_idle+0x305/0x3c0 cpu_startup_entry+0x18/0x20 start_secondary+0x1ca/0x220 secondary_startup_64_no_verify+0xe0/0xeb ---------------- Code disassembly (best guess): 0: 4c 89 ef mov %r13,%rdi 3: e8 d2 34 46 00 callq 0x4634da 8: e9 ac fd ff ff jmpq 0xfffffdb9 d: 48 89 df mov %rbx,%rdi 10: e8 95 34 46 00 callq 0x4634aa 15: e9 3e fd ff ff jmpq 0xfffffd58 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: 90 nop 25: 90 nop 26: 90 nop 27: 90 nop 28: 90 nop 29: 90 nop * 2a: f3 0f 1e fa endbr64 <-- trapping instruction 2e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 35: fc ff df 38: 55 push %rbp 39: 53 push %rbx 3a: 48 89 fb mov %rdi,%rbx 3d: 48 rex.W 3e: 83 .byte 0x83 3f: c7 .byte 0xc7