watchdog: BUG: soft lockup - CPU#1 stuck for 25s! [syz-executor.4:7298] Modules linked in: irq event stamp: 4444729 hardirqs last enabled at (4444728): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4444729): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4395514): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4395517): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 7298 Comm: syz-executor.4 Not tainted 6.1.0-rc6-next-20221128 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__orc_find+0x8f/0xf0 Code: 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 fe 02 4b 8d 04 76 48 8d 04 46 48 83 RSP: 0018:ffff88806cf096d0 EFLAGS: 00000297 RAX: ffffffff8460147a RBX: ffffffff8600e138 RCX: ffffffff84601449 RDX: 0000000000000000 RSI: ffffffff86465034 RDI: ffffffff8600e0f8 RBP: ffffffff8600e0f8 R08: ffffffff86465034 R09: ffffffff8645b228 R10: ffff88806cf09ff8 R11: 0000000000038001 R12: ffffffff8600e134 R13: ffffffff8600e0f8 R14: ffffffff8600e0f8 R15: dffffc0000000000 FS: 00007f791acf9700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f51529e93a4 CR3: 00000000209e8000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 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+0x1f5/0x420 __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+0x54b/0xba0 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:unwind_next_frame+0x1c2/0x2130 Code: 8d 43 ff 39 c6 0f 83 8c 15 00 00 48 b8 00 00 00 00 00 fc ff df 89 f2 48 8d 3c 95 08 cd 48 86 48 89 f9 48 c1 e9 03 0f b6 0c 01 <48> 89 f8 83 e0 07 83 c0 03 38 c8 7c 27 84 c9 74 23 48 89 54 24 28 RSP: 0018:ffff88801838f2f0 EFLAGS: 00000212 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 000000000000381e RSI: 000000000000381e RDI: ffffffff8649ad80 RBP: ffff88801838f3c8 R08: ffffffff8603efa4 R09: ffffffff8603efa8 R10: ffffed1003071e7b R11: 0000000000038001 R12: ffff88801838f3b1 R13: ffff88801838f3d0 R14: ffff88801838f370 R15: ffffffff81381e0f 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+0x1e1/0x410 __create_object+0x3d/0xc10 __kmem_cache_alloc_node+0x25b/0x400 __kmalloc+0x46/0xc0 sg_build_indirect.isra.0+0x94/0x640 sg_open+0xdbb/0x1620 chrdev_open+0x26c/0x6e0 do_dentry_open+0x6ca/0x12b0 path_openat+0x1847/0x29b0 do_filp_open+0x1ba/0x410 do_sys_openat2+0x171/0x4c0 __x64_sys_openat+0x143/0x200 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f791d736a04 Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44 RSP: 002b:00007f791acf8cc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007f791d736a04 RDX: 0000000000000000 RSI: 00007f791acf8d60 RDI: 00000000ffffff9c RBP: 00007f791acf8d60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007ffe1dd2f5ff R14: 00007f791acf9300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 7301 Comm: syz-executor.7 Not tainted 6.1.0-rc6-next-20221128 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:kasan_check_range+0x179/0x1d0 Code: ff ff 41 bb 01 00 00 00 5b 5d 44 89 d8 41 5c e9 71 1c c4 02 48 85 d2 74 e9 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 db 80 38 00 <74> f2 e9 64 ff ff ff 41 bb 01 00 00 00 44 89 d8 e9 46 1c c4 02 48 RSP: 0018:ffff88806ce09188 EFLAGS: 00000046 RAX: fffffbfff0ec5109 RBX: fffffbfff0ec510a RCX: ffffffff812bc3fd RDX: fffffbfff0ec510a RSI: 0000000000000008 RDI: ffffffff87628848 RBP: fffffbfff0ec5109 R08: 0000000000000000 R09: ffffffff8762884f R10: fffffbfff0ec5109 R11: 0000000000000001 R12: ffff8880209d3580 R13: ffff8880209d3f80 R14: 0000000000000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c23b000 CR3: 000000001c006000 CR4: 0000000000350ef0 Call Trace: __lock_acquire+0x164d/0x5e70 lock_acquire+0x1a6/0x530 ktime_get+0x80/0x1f0 clockevents_program_event+0x14f/0x360 tick_program_event+0xb0/0x150 hrtimer_interrupt+0x36a/0x770 __sysvec_apic_timer_interrupt+0x148/0x500 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 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:ffff88806ce09628 EFLAGS: 00000213 RAX: 1ffffffff0bfc267 RBX: ffffffff85fe133c RCX: ffffffff840bbb38 RDX: 0000000000000000 RSI: ffffffff86421b9a RDI: ffffffff85fe133c RBP: ffffffff85fe133c R08: ffffffff86421b9a R09: ffffffff864219a0 R10: ffffed100d9c12eb R11: 0000000000038001 R12: ffffffff85fe133c R13: ffffffff85fe133c R14: ffffffff85fe133c 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+0x1e1/0x410 __create_object+0x3d/0xc10 kmem_cache_alloc_node+0x283/0x420 __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+0x54b/0xba0 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_const_cmp4+0x8/0x20 Code: bf 03 00 00 00 e9 58 fe ff ff 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 48 8b 0c 24 <89> f2 89 fe bf 05 00 00 00 e9 2a fe ff ff 66 2e 0f 1f 84 00 00 00 RSP: 0018:ffff888018d1f6f8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 8000000000000007 RCX: ffffffff816cf989 RDX: ffff8880209d3580 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888010ad96e0 R13: ffffea0000d76e80 R14: 0000000000000000 R15: ffff888018d1fad8 unmap_page_range+0x1a69/0x2c10 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: 0033:0x7fceea838b19 Code: Unable to access opcode bytes at 0x7fceea838aef. RSP: 002b:00007fcee7d8cf48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: 0000000000000009 RBX: 0000000020000040 RCX: 00007fceea838b19 RDX: 000000000000000c RSI: 0000000000000000 RDI: 00007fceea8920fb RBP: 0000000000000002 R08: 0000000000000006 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000008100000 R13: 00000000200000c0 R14: 000000000000000c R15: 0000000020000040 ---------------- Code disassembly (best guess): 0: d8 48 c1 fmuls -0x3f(%rax) 3: e8 03 42 0f b6 callq 0xb60f420b 8: 14 38 adc $0x38,%al a: 48 89 d8 mov %rbx,%rax d: 83 e0 07 and $0x7,%eax 10: 83 c0 03 add $0x3,%eax 13: 38 d0 cmp %dl,%al 15: 7c 04 jl 0x1b 17: 84 d2 test %dl,%dl 19: 75 50 jne 0x6b 1b: 48 63 03 movslq (%rbx),%rax 1e: 48 01 d8 add %rbx,%rax 21: 48 39 c1 cmp %rax,%rcx 24: 73 b0 jae 0xffffffd6 26: 4c 8d 63 fc lea -0x4(%rbx),%r12 * 2a: 49 39 ec cmp %rbp,%r12 <-- trapping instruction 2d: 73 b3 jae 0xffffffe2 2f: 4d 29 ee sub %r13,%r14 32: 49 c1 fe 02 sar $0x2,%r14 36: 4b 8d 04 76 lea (%r14,%r14,2),%rax 3a: 48 8d 04 46 lea (%rsi,%rax,2),%rax 3e: 48 rex.W 3f: 83 .byte 0x83