watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.0:9641] Modules linked in: irq event stamp: 5748855 hardirqs last enabled at (5748854): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5748855): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (5737120): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (5737123): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 9641 Comm: syz-executor.0 Not tainted 6.2.0-rc3-next-20230112 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x1fd/0x2130 Code: 48 89 54 24 28 48 89 74 24 20 44 89 5c 24 18 e8 c9 ba 6a 00 48 8b 54 24 28 48 8b 74 24 20 44 8b 5c 24 18 8b 0c 95 64 0c 4a 86 <8d> 56 01 48 b8 00 00 00 00 00 fc ff df 48 8d 3c 95 64 0c 4a 86 49 RSP: 0018:ffff88806cf097e8 EFLAGS: 00000246 RAX: 0000000000000007 RBX: 0000000000000002 RCX: 0000000000021c4c RDX: 00000000000080fa RSI: 00000000000080fa RDI: ffffffff864c104c RBP: ffff88806cf098c0 R08: ffffffff86101308 R09: ffffffff8610130c R10: ffffed100d9e131a R11: 0000000000038001 R12: ffff88806cf098a9 R13: ffff88806cf098c8 R14: ffff88806cf09868 R15: ffffffff8180fad3 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33726000 CR3: 0000000005482000 CR4: 0000000000350ee0 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 set_track_prepare+0x74/0xd0 __create_object+0x3b4/0xc40 __kmem_cache_alloc_node+0x1ed/0x2f0 __kmalloc_node_track_caller+0x43/0xb0 __alloc_skb+0xe9/0x310 __netdev_alloc_skb+0x76/0x3e0 __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+0x176/0x350 __do_softirq+0x1c7/0x913 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 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 1d 23 fb 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 3d 16 ba 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b RSP: 0018:ffff888037f1f6d0 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffff888037f1f810 RCX: 0000000000000000 RDX: ffff88801a0b9ac0 RSI: ffffffff816d10cf RDI: ffff88801715e900 RBP: ffff88801715e900 R08: 0000000000000001 R09: ffffffff87657907 R10: fffffbfff0ecaf20 R11: 0000000000000001 R12: 0000000000000000 R13: 00000000fffffff9 R14: ffffffff85d113d0 R15: dffffc0000000000 trace_rss_stat+0x16/0x250 unmap_page_range+0x11ad/0x2ef0 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x225/0x370 exit_mmap+0x158/0x6a0 mmput+0xd5/0x390 do_exit+0x99b/0x2780 do_group_exit+0xd4/0x2a0 get_signal+0x2255/0x2390 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0xf5/0x190 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f888668bb19 Code: Unable to access opcode bytes at 0x7f888668baef. RSP: 002b:00007f8883c01108 EFLAGS: 00000202 ORIG_RAX: 00000000000001a9 RAX: 0000000000000007 RBX: 00007f888679ef60 RCX: 00007f888668bb19 RDX: 0000000020ffe000 RSI: 0000000020000080 RDI: 0000000000000fa7 RBP: 0000000020000080 R08: 0000000020000000 R09: 0000000020000000 R10: 0000000020000100 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020ffe000 R14: 0000000020000100 R15: 0000000020ffc000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess): 0: 48 89 54 24 28 mov %rdx,0x28(%rsp) 5: 48 89 74 24 20 mov %rsi,0x20(%rsp) a: 44 89 5c 24 18 mov %r11d,0x18(%rsp) f: e8 c9 ba 6a 00 callq 0x6abadd 14: 48 8b 54 24 28 mov 0x28(%rsp),%rdx 19: 48 8b 74 24 20 mov 0x20(%rsp),%rsi 1e: 44 8b 5c 24 18 mov 0x18(%rsp),%r11d 23: 8b 0c 95 64 0c 4a 86 mov -0x79b5f39c(,%rdx,4),%ecx * 2a: 8d 56 01 lea 0x1(%rsi),%edx <-- trapping instruction 2d: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 34: fc ff df 37: 48 8d 3c 95 64 0c 4a lea -0x79b5f39c(,%rdx,4),%rdi 3e: 86 3f: 49 rex.WB