watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.1:11956] Modules linked in: irq event stamp: 6489925 hardirqs last enabled at (6489924): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (6489925): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (6486716): [] irq_exit_rcu+0x11f/0x190 softirqs last disabled at (6486719): [] irq_exit_rcu+0x11f/0x190 CPU: 0 PID: 11956 Comm: syz-executor.1 Not tainted 6.2.0-rc4-next-20230116 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__orc_find+0x83/0xf0 Code: 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 73 b3 4d 29 ee 49 c1 RSP: 0018:ffff88806ce096e0 EFLAGS: 00000246 RAX: fffffffffe1066a7 RBX: ffffffff85ff0038 RCX: ffffffff840f6a58 RDX: 0000000000000000 RSI: ffffffff86436b04 RDI: ffffffff85ff0038 RBP: ffffffff85ff0038 R08: ffffffff86436b04 R09: ffffffff8636c2ba R10: 0000000000000000 R11: 0000000000038001 R12: ffffffff85ff0038 R13: ffffffff85ff0038 R14: ffffffff85ff0038 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f372491d540 CR3: 000000000c6dc000 CR4: 0000000000350ef0 Call Trace: 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+0x59/0x70 kmem_cache_alloc_node+0x187/0x310 __alloc_skb+0x21a/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+0x274/0x8ff irq_exit_rcu+0x11f/0x190 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:kasan_set_track+0x28/0x30 Code: 90 90 66 0f 1f 00 53 48 89 fb 89 f7 be 01 00 00 00 65 48 8b 04 25 80 89 03 00 8b 80 20 05 00 00 89 03 e8 7b ff ff ff 89 43 04 <5b> e9 06 42 c7 02 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffff888038d777b0 EFLAGS: 00000282 RAX: 00000000071201a4 RBX: ffff88800d8d4188 RCX: 0000000000000000 RDX: 00000000000e8db9 RSI: ffff888038d7761c RDI: 0000000000000000 RBP: ffffffff8113a058 R08: 0000000000000012 R09: ffff88804284f120 R10: ffff88806cb46dc8 R11: 0000000000000001 R12: ffff88800d8d4180 R13: ffff88800844fa00 R14: 0000000021000fff R15: 00000000211fffff kasan_save_free_info+0x2e/0x50 __kasan_slab_free+0x10a/0x190 kmem_cache_free+0xff/0x510 ___pmd_free_tlb+0xa8/0x200 free_pgd_range+0xa09/0x1330 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+0xf5/0x190 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fc65025ab19 Code: Unable to access opcode bytes at 0x7fc65025aaef. RSP: 002b:00007fc64d7d0188 EFLAGS: 00000246 ORIG_RAX: 0000000000000097 RAX: 0000000000000000 RBX: 00007fc65036df60 RCX: 00007fc65025ab19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007fc6502b4f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff1e5b774f R14: 00007fc64d7d0300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 11954 Comm: syz-executor.5 Not tainted 6.2.0-rc4-next-20230116 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:perf_prepare_sample+0xa10/0x21f0 Code: 4c 89 e6 e8 a2 e5 ec ff 4d 85 e4 0f 85 83 09 00 00 e8 34 e9 ec ff 49 89 ec 31 ff 41 81 e4 00 00 20 00 4c 89 e6 e8 80 e5 ec ff <4d> 85 e4 0f 85 4b 05 00 00 e8 12 e9 ec ff 49 89 ec 31 ff 41 81 e4 RSP: 0018:ffff88806cf094e8 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffff88806cf09740 RCX: ffffffff815c9950 RDX: ffff888014589ac0 RSI: 0000000000000100 RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff888008dec680 R14: ffff888008dec680 R15: ffff88806cf095e0 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055a33ac919ac CR3: 000000000c6dc000 CR4: 0000000000350ee0 Call Trace: perf_event_output_forward+0xdd/0x2c0 __perf_event_overflow+0x3f3/0x760 perf_swevent_hrtimer+0x361/0x3d0 __hrtimer_run_queues+0x17f/0xcb0 hrtimer_interrupt+0x319/0x770 __sysvec_apic_timer_interrupt+0x148/0x510 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:mac80211_hwsim_tx_frame_no_nl.isra.0+0x790/0x1360 Code: 44 24 08 e8 42 38 4a fe 0f b6 44 24 08 84 c0 0f 85 09 06 00 00 e8 60 3c 4a fe e8 5b 3c 4a fe 48 89 d8 48 c1 e8 03 80 3c 28 00 <0f> 85 3f 09 00 00 48 8b 1b 48 81 fb a0 88 a4 85 0f 84 54 04 00 00 RSP: 0018:ffff88806cf09b88 EFLAGS: 00000246 RAX: 1ffff11007b6b674 RBX: ffff88803db5b3a0 RCX: 0000000000000100 RDX: ffff888014589ac0 RSI: ffffffff82ff4615 RDI: 0000000000000004 RBP: dffffc0000000000 R08: 0000000000000004 R09: 0000000000000005 R10: 0000000000000002 R11: 0000000000000001 R12: ffff888033cbda00 R13: ffff888016a033a0 R14: ffff888016a03638 R15: 0000000000000002 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+0x274/0x8ff irq_exit_rcu+0x11f/0x190 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__sanitizer_cov_trace_pc+0x20/0x70 Code: 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 8b 05 0d 07 ba 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 80 89 03 00 00 01 ff 00 74 0e 85 c9 74 35 8b 82 14 14 00 00 85 c0 74 2b 8b RSP: 0018:ffff88804502f6f8 EFLAGS: 00000246 RAX: 0000000080000001 RBX: ffffea0000d9cf40 RCX: 0000000000000000 RDX: ffff888014589ac0 RSI: ffffffff816d8a82 RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffffea0000d9cf70 R13: ffff88804502fad8 R14: dffffc0000000000 R15: ffffea0000d9cf40 unmap_page_range+0x1632/0x2d90 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: 0033:0x7fc10ecaab19 Code: Unable to access opcode bytes at 0x7fc10ecaaaef. RSP: 002b:00007fc10c220188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: 0000000000000014 RBX: 00007fc10edbdf60 RCX: 00007fc10ecaab19 RDX: 0000000000000000 RSI: 0000000020007ec0 RDI: 0000000000000003 RBP: 00007fc10ed04f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdb53b4f6f R14: 00007fc10c220300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 01 d0 add %edx,%eax 2: 48 d1 f8 sar %rax 5: 48 8d 5c 85 00 lea 0x0(%rbp,%rax,4),%rbx a: 48 89 d8 mov %rbx,%rax d: 48 c1 e8 03 shr $0x3,%rax 11: 42 0f b6 14 38 movzbl (%rax,%r15,1),%edx 16: 48 89 d8 mov %rbx,%rax 19: 83 e0 07 and $0x7,%eax 1c: 83 c0 03 add $0x3,%eax 1f: 38 d0 cmp %dl,%al 21: 7c 04 jl 0x27 23: 84 d2 test %dl,%dl 25: 75 50 jne 0x77 27: 48 63 03 movslq (%rbx),%rax * 2a: 48 01 d8 add %rbx,%rax <-- trapping instruction 2d: 48 39 c1 cmp %rax,%rcx 30: 73 b0 jae 0xffffffe2 32: 4c 8d 63 fc lea -0x4(%rbx),%r12 36: 49 39 ec cmp %rbp,%r12 39: 73 b3 jae 0xffffffee 3b: 4d 29 ee sub %r13,%r14 3e: 49 rex.WB 3f: c1 .byte 0xc1