watchdog: BUG: soft lockup - CPU#1 stuck for 21s! [syz-executor.0:6697] Modules linked in: irq event stamp: 11807963 hardirqs last enabled at (11807962): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (11807963): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (11798414): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (11798417): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 6697 Comm: syz-executor.0 Not tainted 6.1.0-rc4-next-20221109 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__orc_find+0x6f/0xf0 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:ffff88806d1096d0 EFLAGS: 00000212 RAX: 1ffffffff0b6ca40 RBX: ffffffff85b65200 RCX: ffffffff811ad9d4 RDX: 0000000000000000 RSI: ffffffff85e6227a RDI: ffffffff85b65200 RBP: ffffffff85b65200 R08: ffffffff85e6227a R09: ffffffff85e5c4ca R10: ffff88806d109ff8 R11: 0000000000036001 R12: ffffffff85b65200 R13: ffffffff85b65200 R14: ffffffff85b65200 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c00061e000 CR3: 00000000191d8000 CR4: 0000000000350ee0 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+0x5c/0x70 kmem_cache_alloc_node+0x1ce/0x400 __alloc_skb+0x21a/0x310 __netdev_alloc_skb+0x76/0x3e0 __ieee80211_beacon_get+0x3de/0x1380 ieee80211_beacon_get_tim+0x99/0x4f0 mac80211_hwsim_beacon_tx+0x1d2/0xab0 __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:stack_trace_consume_entry+0x4e/0x170 Code: 04 02 84 c0 74 08 3c 03 0f 8e e7 00 00 00 48 8d 7b 08 8b 6b 10 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e ad 00 00 00 31 c0 3b 6b 08 0f 83 81 00 00 RSP: 0018:ffff888041a0f400 EFLAGS: 00000212 RAX: 0000000000000000 RBX: ffff888041a0f4e8 RCX: 0000000000000000 RDX: 1ffff11008341e9e RSI: ffffffff8135f371 RDI: ffff888041a0f4f0 RBP: 000000000000000d R08: ffffffff85e3e916 R09: ffffffff85e3e91a R10: ffffed1008341e91 R11: ffff888041a0f460 R12: ffff888041a0f4e8 R13: 0000000000000000 R14: ffff888015651ac0 R15: ffff88800804fa00 arch_stack_walk+0x77/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 __kasan_record_aux_stack+0x95/0xb0 __call_rcu_common.constprop.0+0x6a/0xa40 kmem_cache_free+0xc1/0x610 ___pte_free_tlb+0x1d/0x110 free_pgd_range+0x7be/0x1330 free_pgtables+0x2d6/0x420 exit_mmap+0x1b8/0x680 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: 0033:0x7f1fbe805b19 Code: Unable to access opcode bytes at 0x7f1fbe805aef. RSP: 002b:00007f1fbbd7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f1fbe918f68 RCX: 00007f1fbe805b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f1fbe918f68 RBP: 00007f1fbe918f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1fbe918f6c R13: 00007ffd00aa158f R14: 00007f1fbbd7b300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6702 Comm: syz-executor.1 Not tainted 6.1.0-rc4-next-20221109 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:kasan_check_range+0x145/0x1d0 Code: 00 74 ef 49 8d 04 2c 48 85 d2 75 0b 48 89 da 48 29 c2 e9 6a ff ff ff 48 89 d0 49 39 c2 0f 85 f3 fe ff ff 4c 89 c8 49 0f be 12 <83> e0 07 48 39 d0 0f 8d e0 fe ff ff 41 bb 01 00 00 00 5b 5d 44 89 RSP: 0018:ffff88806d0094c0 EFLAGS: 00000046 RAX: ffff88806d00950b RBX: ffffed100da012a2 RCX: ffffffff812c4415 RDX: 0000000000000004 RSI: 0000000000000004 RDI: ffff88806d009508 RBP: ffffed100da012a1 R08: 0000000000000001 R09: ffff88806d00950b R10: ffffed100da012a1 R11: 0000000000000001 R12: ffff88806d02b608 R13: ffff88806d02b610 R14: ffff88806d02b680 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c00061d000 CR3: 00000000191d8000 CR4: 0000000000350ef0 Call Trace: do_raw_spin_lock+0x125/0x270 __hrtimer_run_queues+0x1f3/0xb50 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:unwind_next_frame+0x1fd/0x2130 Code: 48 89 54 24 28 48 89 74 24 20 44 89 5c 24 18 e8 79 cc 69 00 48 8b 54 24 28 48 8b 74 24 20 44 8b 5c 24 18 8b 0c 95 ec 2a 29 86 <8d> 56 01 48 b8 00 00 00 00 00 fc ff df 48 8d 3c 95 ec 2a 29 86 49 RSP: 0018:ffff88806d0097f0 EFLAGS: 00000246 RAX: 0000000000000007 RBX: 0000000000000002 RCX: 0000000000020471 RDX: 0000000000007c2c RSI: 0000000000007c2c RDI: ffffffff862b1b9c RBP: ffff88806d0098c8 R08: ffffffff85ef20fa R09: ffffffff85ef20fe R10: ffffed100da0131b R11: 0000000000036001 R12: ffff88806d0098b1 R13: ffff88806d0098d0 R14: ffff88806d009870 R15: ffffffff817c2c5e arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2e/0x50 __kasan_slab_free+0x10a/0x190 __kmem_cache_free+0xcf/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:__sanitizer_cov_trace_pc+0x4/0x70 Code: 00 e8 a0 ff ff ff 31 c0 e9 7d b6 f5 02 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <65> 8b 05 9d f4 ba 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b RSP: 0018:ffff88803d17f628 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffea0000c131c0 RCX: ffffffff81783c71 RDX: ffff8880396c8000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffffea0000c131c8 R13: ffff88800ed2e820 R14: dffffc0000000000 R15: dffffc0000000000 PageHuge+0x5b/0x230 page_remove_rmap+0x8f/0x780 unmap_page_range+0x1c8c/0x2c20 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: 0033:0x7f94b2520b19 Code: Unable to access opcode bytes at 0x7f94b2520aef. RSP: 002b:00007f94afa96218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f94b2633f68 RCX: 00007f94b2520b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f94b2633f68 RBP: 00007f94b2633f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f94b2633f6c R13: 00007ffdd722fc8f R14: 00007f94afa96300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 72 4d jb 0x4f 2: 4c 89 e0 mov %r12,%rax 5: 48 29 e8 sub %rbp,%rax 8: 48 89 c2 mov %rax,%rdx b: 48 c1 e8 3f shr $0x3f,%rax f: 48 c1 fa 02 sar $0x2,%rdx 13: 48 01 d0 add %rdx,%rax 16: 48 d1 f8 sar %rax 19: 48 8d 5c 85 00 lea 0x0(%rbp,%rax,4),%rbx 1e: 48 89 d8 mov %rbx,%rax 21: 48 c1 e8 03 shr $0x3,%rax 25: 42 0f b6 14 38 movzbl (%rax,%r15,1),%edx * 2a: 48 89 d8 mov %rbx,%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 04 jl 0x3b 37: 84 d2 test %dl,%dl 39: 75 50 jne 0x8b 3b: 48 63 03 movslq (%rbx),%rax 3e: 48 rex.W 3f: 01 .byte 0x1