watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.4:18494] Modules linked in: irq event stamp: 4641971 hardirqs last enabled at (4641970): [] asm_sysvec_x86_platform_ipi-0xa/0x20 hardirqs last disabled at (4641971): [] sysvec_apic_timer_interrupt+0xb/0xd0 softirqs last enabled at (4553594): [] __irq_exit_rcu+0x11b/0x190 softirqs last disabled at (4553597): [] __irq_exit_rcu+0x11b/0x190 CPU: 0 PID: 18494 Comm: syz-executor.4 Not tainted 6.1.0-rc1-next-20221019 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x1f9/0x2140 Code: 48 89 54 24 28 48 89 74 24 20 44 89 5c 24 18 e8 6d 55 69 00 48 8b 54 24 28 48 8b 74 24 20 44 8b 5c 24 18 8b 0c 95 a8 cd 08 86 <8d> 56 01 48 b8 00 00 00 00 00 fc ff df 48 8d 3c 95 a8 cd 08 86 49 RSP: 0018:ffff88806ce099f8 EFLAGS: 00000246 RAX: 0000000000000007 RBX: 0000000000000001 RCX: 0000000000009e3e RDX: 0000000000001f77 RSI: 0000000000001f77 RDI: ffffffff86094b84 RBP: ffff88806ce09ad0 R08: ffffffff85c663ee R09: ffffffff85c663f2 R10: ffff88806ce09ff8 R11: 0000000000036001 R12: ffff88806ce09ab9 R13: ffff88806ce09ad8 R14: ffff88806ce09a78 R15: ffffffff811f77d2 FS: 00007f01973de700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f926000 CR3: 000000004346e000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x83/0x100 stack_trace_save+0x8c/0xd0 kasan_save_stack+0x1e/0x50 kasan_set_track+0x21/0x40 kasan_save_free_info+0x2a/0x60 __kasan_slab_free+0x106/0x1a0 kmem_cache_free+0xf7/0x620 rcu_core+0x7e2/0x2090 __do_softirq+0x1c3/0x8f5 __irq_exit_rcu+0x11b/0x190 irq_exit_rcu+0x5/0x30 sysvec_apic_timer_interrupt+0x8e/0xd0 asm_sysvec_x86_platform_ipi-0xa/0x20 RIP: 0010:__create_object+0x2/0xc20 Code: 84 e9 7d e1 a5 02 48 c7 c7 98 a9 90 85 e8 e6 aa fc ff eb ce 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 57 <41> 56 41 89 d6 41 55 45 89 c5 41 54 55 48 89 fd 53 48 89 f3 48 83 RSP: 0018:ffff8880452377b0 EFLAGS: 00000282 RAX: dffffc0000000000 RBX: 0000607f92e29040 RCX: 0000000000000cc0 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffe8ffffc29040 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000001 R12: fffffbfff0b21564 R13: 0000000000000008 R14: 0000000000000cc0 R15: 0000000000000000 kmemleak_alloc_percpu+0xa1/0x150 pcpu_alloc+0x7f4/0x10b0 alloc_vfsmnt+0xfd/0x6d0 clone_mnt+0x6d/0xdd0 copy_tree+0x3b0/0xa70 copy_mnt_ns+0x1a9/0xaa0 create_new_namespaces+0xd6/0xb40 copy_namespaces+0x3b3/0x4b0 copy_process+0x29f8/0x6ea0 kernel_clone+0xe7/0x8a0 __do_sys_clone3+0x1d5/0x2f0 do_syscall_64+0x3b/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f0199e68b19 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:00007f01973de188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f0199f7bf60 RCX: 00007f0199e68b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000640 RBP: 00007f0199ec2f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc14902c7f R14: 00007f01973de300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 18496 Comm: syz-executor.3 Not tainted 6.1.0-rc1-next-20221019 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:check_preemption_disabled+0x33/0x190 Code: 55 48 89 fd 53 0f 1f 44 00 00 65 44 8b 25 a1 88 cf 7b 65 8b 1d 96 88 cf 7b 81 e3 ff ff ff 7f 31 ff 89 de 0f 1f 44 00 00 85 db <74> 15 0f 1f 44 00 00 44 89 e0 5b 5d 41 5c 41 5d 41 5e e9 a6 31 02 RSP: 0018:ffff88806cf091b8 EFLAGS: 00000002 RAX: 0000000000000004 RBX: 0000000000010102 RCX: ffff88806cf09238 RDX: 1ffff110068c012d RSI: 0000000000010102 RDI: 0000000000000000 RBP: ffffffff847edc00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001 R13: ffffffff8466f800 R14: ffff888034600970 R15: ffff888034600000 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056051b4fd2b0 CR3: 000000000f0ac000 CR4: 0000000000350ee0 Call Trace: lock_release+0x3b2/0x760 ktime_get+0x8d/0x200 perf_swevent_hrtimer+0x223/0x3e0 __hrtimer_run_queues+0x184/0xb60 hrtimer_interrupt+0x315/0x780 __sysvec_apic_timer_interrupt+0x144/0x510 sysvec_apic_timer_interrupt+0x3b/0xd0 asm_sysvec_x86_platform_ipi-0xa/0x20 RIP: 0010:__orc_find+0x6f/0x100 Code: 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 <48> 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 50 48 63 03 48 01 RSP: 0018:ffff88806cf09788 EFLAGS: 00000217 RAX: 1ffffffff0b2fa2e RBX: ffffffff8597d174 RCX: ffffffff8133b1b9 RDX: 0000000000000000 RSI: ffffffff85c88120 RDI: ffffffff8597d160 RBP: ffffffff8597d160 R08: ffffffff85c88120 R09: ffffffff85cee68e R10: ffffed100d9e1317 R11: 0000000000036001 R12: ffffffff8597d18c R13: ffffffff8597d160 R14: ffffffff8597d160 R15: dffffc0000000000 unwind_next_frame+0x2ad/0x2140 arch_stack_walk+0x83/0x100 stack_trace_save+0x8c/0xd0 kasan_save_stack+0x1e/0x50 __kasan_record_aux_stack+0x95/0xc0 __call_rcu_common.constprop.0+0x6a/0xa50 __kmem_cache_free+0x91/0x410 skb_release_data+0x6d8/0x820 consume_skb+0xc2/0x170 mac80211_hwsim_tx_frame+0x1f6/0x2b0 mac80211_hwsim_beacon_tx+0x562/0xac0 __iterate_interfaces+0x2d3/0x570 ieee80211_iterate_active_interfaces_atomic+0x70/0x190 mac80211_hwsim_beacon+0x101/0x210 __hrtimer_run_queues+0x541/0xb60 hrtimer_run_softirq+0x172/0x350 __do_softirq+0x1c3/0x8f5 __irq_exit_rcu+0x11b/0x190 irq_exit_rcu+0x5/0x30 sysvec_apic_timer_interrupt+0x8e/0xd0 asm_sysvec_x86_platform_ipi-0xa/0x20 RIP: 0010:lock_acquire+0x1db/0x540 Code: 03 b8 ff ff ff ff 65 0f c1 05 91 e9 d6 7e 83 f8 01 0f 85 c8 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24 RSP: 0018:ffff888044f0f4d0 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 1ffff110089e1e9c RCX: 000000004b307976 RDX: 1ffff110068c012e RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff87205807 R10: fffffbfff0e40b00 R11: 0000000000000001 R12: 0000000000000002 R13: 0000000000000000 R14: ffffffff85207920 R15: 0000000000000000 folio_memcg_lock+0x3a/0x4b0 page_remove_rmap+0x1e/0x4a0 unmap_page_range+0x1c26/0x2a20 unmap_single_vma+0x190/0x2b0 unmap_vmas+0x21e/0x380 exit_mmap+0x154/0x690 mmput+0xd1/0x3a0 do_exit+0xa2e/0x2800 do_group_exit+0xd0/0x2b0 get_signal+0x2195/0x22e0 arch_do_signal_or_restart+0x89/0x1bf0 exit_to_user_mode_prepare+0x131/0x1b0 syscall_exit_to_user_mode+0x19/0x50 do_syscall_64+0x48/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f5564769b19 Code: Unable to access opcode bytes at 0x7f5564769aef. RSP: 002b:00007f5561cdf218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f556487cf68 RCX: 00007f5564769b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f556487cf68 RBP: 00007f556487cf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f556487cf6c R13: 00007fff4dacc2cf R14: 00007f5561cdf300 R15: 0000000000022000 ---------------- 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 6d 55 69 00 callq 0x695581 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 a8 cd 08 86 mov -0x79f73258(,%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 a8 cd 08 lea -0x79f73258(,%rdx,4),%rdi 3e: 86 3f: 49 rex.WB