watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.3:130891] Modules linked in: irq event stamp: 3164403 hardirqs last enabled at (3164402): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (3164403): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (3153976): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (3153979): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 130891 Comm: syz-executor.3 Not tainted 6.2.0-rc2-next-20230106 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_access_ok+0x55/0x1d0 Code: c0 74 08 3c 03 0f 8e 4b 01 00 00 8b 0b 85 c9 74 65 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 08 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 30 01 00 00 48 8d 7b 10 4c 8b 6b 08 48 b8 00 00 00 00 00 fc RSP: 0018:ffff88806ce09678 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff88806ce09730 RCX: 0000000000000001 RDX: 1ffff1100d9c12e7 RSI: ffff8880417f7f30 RDI: ffff88806ce09738 RBP: ffff8880417f7f30 R08: ffffffff86469b48 R09: ffffffff86469b4c R10: ffff88806ce09ff8 R11: ffff88806ce09770 R12: 0000000000000008 R13: ffff88806ce09790 R14: ffff88806ce09730 R15: 0000000000000005 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555794c58 CR3: 0000000037972000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: unwind_next_frame+0x14e5/0x2130 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_kmalloc+0x82/0x90 __kmalloc_node_track_caller+0x53/0xb0 __alloc_skb+0xe9/0x310 skb_copy+0x13d/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xb10 __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:_raw_spin_unlock_irqrestore+0x32/0x60 Code: 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 e6 bb e7 fc 48 89 ef e8 2e 33 e8 fc 80 e7 02 74 06 e8 84 2e 0c fd fb bf 01 00 00 00 99 80 dd fc 65 8b 05 ba 2e bf 7b 85 c0 74 07 5b 5d e9 6b 29 00 RSP: 0018:ffff8880417f77b8 EFLAGS: 00000202 RAX: 000000000027d867 RBX: 0000000000000287 RCX: ffffffff812b788f RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffffff856d1c00 R08: 0000000000000001 R09: ffffffff8764e92f R10: fffffbfff0ec9d25 R11: 0000000000000001 R12: 0000000000000287 R13: ffff8880205d5048 R14: 0000000000aaa240 R15: 0000000000000000 kmemleak_free+0x18a/0x200 kmem_cache_free+0xb9/0x510 ___pte_free_tlb+0x1d/0x110 free_pgd_range+0x7be/0x1330 free_pgtables+0x2d6/0x420 exit_mmap+0x1b8/0x6a0 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+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f27ba3fdb19 Code: Unable to access opcode bytes at 0x7f27ba3fdaef. RSP: 002b:00007f27b7973188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 00007f27ba510f60 RCX: 00007f27ba3fdb19 RDX: 0000000020000000 RSI: 0000000000008914 RDI: 0000000000000005 RBP: 00007f27ba457f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc1b51861f R14: 00007f27b7973300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.2.0-rc2-next-20230106 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc90 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 e6 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 fe 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:ffff88806cf09a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff844463cb RDX: fffffbfff0b48a71 RSI: 0000000000000004 RDI: ffffffff85a45380 RBP: ffffffff85a45380 R08: 0000000000000000 R09: ffffffff85a45383 R10: fffffbfff0b48a70 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b48a70 R14: 0000000000000001 R15: 1ffff1100d9e1346 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555edfcca9dc CR3: 0000000016362000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6f1/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xb10 __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:default_idle+0xf/0x20 Code: de fe fd cc cc cc cc cc cc cc cc 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 3e 3e 00 fb f4 a0 44 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 RSP: 0018:ffff888008df7e58 EFLAGS: 00000202 RAX: ffffffff84443f90 RBX: ffff888008d85040 RCX: ffffffff84424d32 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000001 R09: ffff88806cf34f83 R10: ffffed100d9e69f0 R11: 0000000000000001 R12: ffffed10011b0a08 R13: ffffffff85d0c210 R14: 0000000000000000 R15: dffffc0000000000 default_idle_call+0x88/0xd0 do_idle+0x3bd/0x530 cpu_startup_entry+0x18/0x20 start_secondary+0x1cc/0x220 secondary_startup_64_no_verify+0xe0/0xeb hpet: Lost 4 RTC interrupts hpet: Lost 1 RTC interrupts netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. random: crng reseeded on system resumption Restarting kernel threads ... done. random: crng reseeded on system resumption Restarting kernel threads ... done. random: crng reseeded on system resumption random: crng reseeded on system resumption Bluetooth: hci0: unexpected event 0x48 length: 15 > 3 Bluetooth: hci0: wrong event for mode 0 Bluetooth: hci0: unexpected event 0x48 length: 15 > 3 Bluetooth: hci0: wrong event for mode 0 Process accounting resumed ---------------- Code disassembly (best guess): 0: c0 74 08 3c 03 shlb $0x3,0x3c(%rax,%rcx,1) 5: 0f 8e 4b 01 00 00 jle 0x156 b: 8b 0b mov (%rbx),%ecx d: 85 c9 test %ecx,%ecx f: 74 65 je 0x76 11: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 18: fc ff df 1b: 48 8d 7b 08 lea 0x8(%rbx),%rdi 1f: 48 89 fa mov %rdi,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) * 2a: 0f 85 30 01 00 00 jne 0x160 <-- trapping instruction 30: 48 8d 7b 10 lea 0x10(%rbx),%rdi 34: 4c 8b 6b 08 mov 0x8(%rbx),%r13 38: 48 rex.W 39: b8 00 00 00 00 mov $0x0,%eax 3e: 00 fc add %bh,%ah