loop7: detected capacity change from 0 to 40 pci 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem watchdog: BUG: soft lockup - CPU#1 stuck for 25s! [syz-executor.6:10792] Modules linked in: irq event stamp: 4709561 hardirqs last enabled at (4709560): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4709561): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4701974): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4701977): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 10792 Comm: syz-executor.6 Not tainted 6.1.0-rc5-next-20221118 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_raw_spin_unlock_irqrestore+0x32/0x60 Code: 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 96 82 eb fc 48 89 ef e8 5e fa eb fc 80 e7 02 74 06 e8 e4 74 0f fd fb bf 01 00 00 00 19 57 e1 fc 65 8b 05 3a 00 c3 7b 85 c0 74 07 5b 5d e9 2b 29 00 RSP: 0018:ffff88806cf09bc0 EFLAGS: 00000202 RAX: 000000000047dc9e RBX: 0000000000000246 RCX: ffffffff812b6aff RDX: 0000000000000000 RSI: 0000000000000101 RDI: 0000000000000001 RBP: ffffffff856d1e00 R08: 0000000000000001 R09: ffffffff8763284f R10: fffffbfff0ec6509 R11: 0000000000000001 R12: ffff88800eac9260 R13: ffff88801634f2a8 R14: ffff88800eac9af8 R15: ffff888008441c80 FS: 00007f98afe6e700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556ea1c98 CR3: 0000000036306000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: find_and_remove_object+0x123/0x170 kmemleak_free+0x25/0x40 __kmem_cache_free+0x95/0x410 skb_release_data+0x6d8/0x810 consume_skb+0xcb/0x170 mac80211_hwsim_tx_frame+0x1f6/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x541/0xb50 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __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:__create_object+0x3a8/0xc00 Code: 00 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 0f b6 14 11 84 d2 74 09 80 fa 03 0f 8e 80 05 00 00 41 89 87 c8 00 00 00 <48> c7 c7 00 1e 6d 85 e8 5c 42 c0 02 49 89 c1 45 84 ed 0f 85 de 01 RSP: 0018:ffff888045977790 EFLAGS: 00000246 RAX: 000000000783021a RBX: 0000000000000104 RCX: 1ffff11001b68395 RDX: 0000000000000000 RSI: ffff888045977714 RDI: ffff88800db41ca8 RBP: ffffe8ffffc24658 R08: 000000000000000c R09: ffff888009473830 R10: ffff88806cbb6da0 R11: 0000000000000001 R12: ffff88800db41c28 R13: 0000000000000000 R14: ffff88800db41cbc R15: ffff88800db41be0 kmemleak_alloc_percpu+0xa5/0x140 pcpu_alloc+0x7f4/0x10a0 sock_inuse_init_net+0x22/0x80 ops_init+0xbb/0x680 setup_net+0x40c/0x9d0 copy_net_ns+0x31c/0x760 create_new_namespaces+0x3f6/0xb30 copy_namespaces+0x3b7/0x4a0 copy_process+0x29e3/0x7220 kernel_clone+0xeb/0x950 __do_sys_clone3+0x1d9/0x370 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f98b28f8b19 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:00007f98afe6e188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f98b2a0bf60 RCX: 00007f98b28f8b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f98b2952f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe047cb62f R14: 00007f98afe6e300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 10773 Comm: syz-executor.5 Not tainted 6.1.0-rc5-next-20221118 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:rcu_lockdep_current_cpu_online+0x39/0x140 Code: f0 00 b8 01 00 00 00 75 0a 8b 15 ca 8c 9d 04 85 d2 75 05 e9 3d 39 0d 03 55 53 48 83 ec 08 65 ff 05 34 10 d0 7e e8 47 05 0b 03 <48> c7 c3 00 9e 03 00 48 ba 00 00 00 00 00 fc ff df 89 c0 48 8d 3c RSP: 0018:ffff88806ce08d80 EFLAGS: 00000006 RAX: 0000000000000000 RBX: 1ffff1100d9c11b8 RCX: 1ffffffff0a54918 RDX: 0000000000000001 RSI: 0000000000010106 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff85d10257 R10: fffffbfff0ba204a R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000000 R14: ffffffff85608460 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1bd266f0fb CR3: 0000000033570000 CR4: 0000000000350ef0 Call Trace: rcu_read_lock_sched_held+0x2d/0x80 lock_acquire+0x462/0x530 perf_output_begin_forward+0xb4/0xb00 perf_event_output_forward+0xf6/0x280 __perf_event_overflow+0x2d6/0x5b0 perf_swevent_hrtimer+0x361/0x3d0 __hrtimer_run_queues+0x184/0xb50 hrtimer_interrupt+0x319/0x770 __sysvec_apic_timer_interrupt+0x148/0x500 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__orc_find+0x7c/0xf0 Code: 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 d8 48 39 c1 73 b0 4c 8d 63 fc 49 39 ec RSP: 0018:ffff88806ce095a8 EFLAGS: 00000206 RAX: 0000000000000003 RBX: ffffffff85d80880 RCX: ffffffff8132de31 RDX: 0000000000000000 RSI: ffffffff8608b3c4 RDI: ffffffff85d8086c RBP: ffffffff85d8086c R08: ffffffff8608b3c4 R09: ffffffff86463722 R10: ffff88806ce09ff8 R11: 0000000000038001 R12: ffffffff85d80894 R13: ffffffff85d8086c R14: ffffffff85d8086c R15: dffffc0000000000 unwind_next_frame+0x2b1/0x2130 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x5c/0x70 kmem_cache_alloc+0x1e0/0x410 __create_object+0x3d/0xc00 kmem_cache_alloc_node+0x282/0x420 __alloc_skb+0x21a/0x310 skb_copy+0x13d/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x541/0xb50 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __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:lock_is_held_type+0xfc/0x130 Code: 20 fe 86 84 e8 b5 0e 00 00 b8 ff ff ff ff 65 0f c1 05 f8 19 c4 7b 83 f8 01 75 26 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f e9 36 42 02 00 45 31 ed eb RSP: 0018:ffff88804573f5e0 EFLAGS: 00000292 RAX: 0000000000000001 RBX: 0000000000000002 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffffff856083a0 R08: 0000000000000000 R09: ffffffff85d10257 R10: fffffbfff0ba204a R11: 0000000000000001 R12: ffff88800ff9d040 R13: 0000000000000000 R14: 00000000ffffffff R15: ffff88800ff9d9c8 rcu_read_lock_sched_held+0x42/0x80 lock_release+0x54b/0x750 _raw_spin_unlock+0x16/0x50 unmap_page_range+0xd42/0x2c10 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x226/0x380 exit_mmap+0x158/0x680 mmput+0xd5/0x390 do_exit+0x99b/0x2720 do_group_exit+0xd4/0x2a0 get_signal+0x21a5/0x22e0 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f072f72ab19 Code: Unable to access opcode bytes at 0x7f072f72aaef. RSP: 002b:00007f072cc3d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: 0000000000000006 RBX: 00007f072f83e1a0 RCX: 00007f072f72ab19 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002 RBP: 00007f072f784f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffd7387b3f R14: 00007f072cc3d300 R15: 0000000000022000 I/O error, dev loop7, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 pci 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem ---------------- Code disassembly (best guess): 0: 48 83 c7 18 add $0x18,%rdi 4: 53 push %rbx 5: 48 89 f3 mov %rsi,%rbx 8: 48 8b 74 24 10 mov 0x10(%rsp),%rsi d: e8 96 82 eb fc callq 0xfceb82a8 12: 48 89 ef mov %rbp,%rdi 15: e8 5e fa eb fc callq 0xfcebfa78 1a: 80 e7 02 and $0x2,%bh 1d: 74 06 je 0x25 1f: e8 e4 74 0f fd callq 0xfd0f7508 24: fb sti 25: bf 01 00 00 00 mov $0x1,%edi * 2a: e8 19 57 e1 fc callq 0xfce15748 <-- trapping instruction 2f: 65 8b 05 3a 00 c3 7b mov %gs:0x7bc3003a(%rip),%eax # 0x7bc30070 36: 85 c0 test %eax,%eax 38: 74 07 je 0x41 3a: 5b pop %rbx 3b: 5d pop %rbp 3c: e9 .byte 0xe9 3d: 2b 29 sub (%rcx),%ebp