watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.6:7222] Modules linked in: irq event stamp: 8353901 hardirqs last enabled at (8353900): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (8353901): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (8300524): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (8300527): [] __irq_exit_rcu+0xcc/0x110 CPU: 1 PID: 7222 Comm: syz-executor.6 Not tainted 6.2.0-rc7-next-20230210 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0x7e/0x170 Code: 0f 8e ad 00 00 00 31 c0 3b 6b 08 0f 83 81 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 0c 48 89 fa 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 98 00 00 00 8b RSP: 0018:ffff88806cf095e0 EFLAGS: 00000213 RAX: dffffc0000000000 RBX: ffff88806cf096c8 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff81731c8b RDI: ffff88806cf096d4 RBP: 0000000000000018 R08: 0000000000000001 R09: ffff88806cf09640 R10: 0000000000038001 R11: 0000000000000001 R12: ffff88806cf096c8 R13: 0000000000000000 R14: ffff88804e370000 R15: 0000000000092820 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f20ae7dc650 CR3: 0000000005482000 CR4: 0000000000350ee0 Call Trace: arch_stack_walk+0x77/0xf0 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_node+0x215/0x330 __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:unmap_page_range+0xbbd/0x2da0 Code: 00 10 00 00 48 89 44 24 08 e8 8f c0 db ff 48 8b 04 24 48 c1 e8 03 42 80 3c 30 00 0f 85 2c 17 00 00 48 8b 04 24 31 ff 4c 8b 20 <4c> 89 e3 48 83 e3 9f 48 89 de e8 64 bc db ff 48 85 db 0f 85 38 fe RSP: 0018:ffff8880457376f0 EFLAGS: 00000246 RAX: ffff888016815cd8 RBX: 00007fbda999b000 RCX: 0000000000000000 RDX: ffff88804e370000 RSI: ffffffff816faf11 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000006 R09: 00007fbda999b000 R10: 00007fbda9a00000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff888045737ad8 R14: dffffc0000000000 R15: 00007fbda9a00000 unmap_single_vma+0x194/0x2a0 unmap_vmas+0x233/0x390 exit_mmap+0x15b/0x6a0 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: 0033:0x7fbda92cfa04 Code: Unable to access opcode bytes at 0x7fbda92cf9da. RSP: 002b:00007fbda6891cc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: 000000000000000a RBX: 00007fbda942ff60 RCX: 00007fbda92cfa04 RDX: 0000000000000002 RSI: 00007fbda6891d60 RDI: 00000000ffffff9c RBP: 00007fbda6891d60 R08: 0000000000000000 R09: 000000000000000d R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 00007ffc997a398f R14: 00007fbda6892300 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-rc7-next-20230210 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc50 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 d5 09 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 6e 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e4 00 00 RSP: 0018:ffff88806ce09a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff84489c1b RDX: fffffbfff0b49c31 RSI: 0000000000000004 RDI: ffffffff85a4e180 RBP: ffffffff85a4e180 R08: 0000000000000000 R09: ffffffff85a4e183 R10: fffffbfff0b49c30 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b49c30 R14: 0000000000000001 R15: 1ffff1100d9c1346 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000565370cf9df0 CR3: 000000000ca12000 CR4: 0000000000350ef0 Call Trace: 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 a3 d6 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: 00000206 RAX: 000000000043770f RBX: ffffffff8542a800 RCX: ffffffff8446987e RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81284520 RBP: 0000000000000000 R08: 0000000000000001 R09: ffff88806ce34f83 R10: ffffed100d9c69f0 R11: 0000000000000001 R12: fffffbfff0a85500 R13: ffffffff85d15910 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: 0f 8e ad 00 00 00 jle 0xb3 6: 31 c0 xor %eax,%eax 8: 3b 6b 08 cmp 0x8(%rbx),%ebp b: 0f 83 81 00 00 00 jae 0x92 11: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 18: fc ff df 1b: 48 8d 7b 0c lea 0xc(%rbx),%rdi 1f: 48 89 fa mov %rdi,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx * 2a: 48 89 f8 mov %rdi,%rax <-- trapping instruction 2d: 83 e0 07 and $0x7,%eax 30: 83 c0 03 add $0x3,%eax 33: 38 d0 cmp %dl,%al 35: 7c 08 jl 0x3f 37: 84 d2 test %dl,%dl 39: 0f 85 98 00 00 00 jne 0xd7 3f: 8b .byte 0x8b