watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.6:19788] Modules linked in: irq event stamp: 4241739 hardirqs last enabled at (4241738): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4241739): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4203714): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4203717): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 19788 Comm: syz-executor.6 Not tainted 6.1.0-rc4-next-20221111 #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:ffff88806d109578 EFLAGS: 00000246 RAX: fffffffffe5acd66 RBX: ffffffff85e0e3f0 RCX: ffffffff843bb13e RDX: 0000000000000000 RSI: ffffffff86260132 RDI: ffffffff85e0e3e0 RBP: ffffffff85e0e3e0 R08: ffffffff86260132 R09: ffffffff85efa664 R10: ffff88806d109ff8 R11: 0000000000036001 R12: ffffffff85e0e400 R13: ffffffff85e0e3e0 R14: ffffffff85e0e3e0 R15: dffffc0000000000 FS: 00007f60f9c7c700(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e216882908 CR3: 000000000e4ea000 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+0x1b1/0x3e0 __create_object+0x3d/0xc00 __kmem_cache_alloc_node+0x237/0x3d0 __kmalloc_node_track_caller+0x43/0xb0 __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+0x566/0xab0 __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: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 ec 2a 29 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:ffff8880442ef728 EFLAGS: 00000212 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000007fb5 RSI: 0000000000007fb5 RDI: ffffffff862b29c0 RBP: ffff8880442ef800 R08: ffffffff85e919b4 R09: ffffffff85e919b8 R10: ffffed100885df02 R11: 0000000000036001 R12: ffff8880442ef7e9 R13: ffff8880442ef808 R14: ffff8880442ef7a8 R15: ffffffff817fb583 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 set_track_prepare+0x74/0xd0 __create_object+0x378/0xc00 kmem_cache_alloc+0x23d/0x3e0 security_file_alloc+0x38/0x170 __alloc_file+0xb6/0x240 alloc_empty_file+0x71/0x170 path_openat+0xd4/0x29b0 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: 0033:0x7f60fc706b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f60f9c7c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f60fc819f60 RCX: 00007f60fc706b19 RDX: 0000000000000000 RSI: 0000000020000040 RDI: ffffffffffffff9c RBP: 00007f60fc760f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff52fb695f R14: 00007f60f9c7c300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 19792 Comm: syz-executor.0 Not tainted 6.1.0-rc4-next-20221111 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lapic_next_deadline+0x25/0x50 Code: 90 90 90 90 90 f3 0f 1e fa 0f ae f0 0f ae e8 0f 31 48 c1 e2 20 b9 e0 06 00 00 48 09 c2 48 8d 04 fa 48 89 c2 48 c1 ea 20 0f 30 <66> 90 31 c0 e9 e6 56 2e 03 48 89 c6 31 d2 bf e0 06 00 00 e8 33 1b RSP: 0018:ffff88806d009840 EFLAGS: 00000016 RAX: 000001db1eed8e50 RBX: 0000000000000000 RCX: 00000000000006e0 RDX: 00000000000001db RSI: ffff88806d028100 RDI: 0000000000000475 RBP: ffff88806d028100 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000cc3 R11: 0000000000000001 R12: 0000000000000475 R13: 0000000000000000 R14: 0000000000000001 R15: ffff88806d02b600 FS: 0000000000000000(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e21689af78 CR3: 0000000038a0a000 CR4: 0000000000350ef0 Call Trace: clockevents_program_event+0x248/0x360 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:queued_spin_lock_slowpath+0x128/0xc80 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 cd 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 ce 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e5 00 00 RSP: 0018:ffff88806d009a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff843e243b RDX: fffffbfff0b08919 RSI: 0000000000000004 RDI: ffffffff858448c0 RBP: ffffffff858448c0 R08: 0000000000000000 R09: ffffffff858448c3 R10: fffffbfff0b08918 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b08918 R14: 0000000000000001 R15: 1ffff1100da01346 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+0x566/0xab0 __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:page_remove_rmap+0x16b/0x780 Code: d8 d6 ff 45 84 ed 0f 85 c6 00 00 00 e8 3e dc d6 ff 4c 8d 6d 08 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 <0f> 85 6a 05 00 00 4c 8b 7d 08 bf 01 00 00 00 41 83 e7 01 44 89 fe RSP: 0018:ffff888032207658 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 1ffff11006440ecd RCX: 0000000000000000 RDX: 1ffffd40001ec829 RSI: ffffffff8171ae62 RDI: 0000000000000001 RBP: ffffea0000f64140 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888036adf410 R13: ffffea0000f64148 R14: ffffea0000f64170 R15: ffff888032207ad8 unmap_page_range+0x2002/0x2c30 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: 0033:0x7f417867eb19 Code: Unable to access opcode bytes at 0x7f417867eaef. RSP: 002b:00007f4175bd3188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000009 RBX: 00007f4178792020 RCX: 00007f417867eb19 RDX: 0000000000000000 RSI: 0000000000005441 RDI: 0000000000000006 RBP: 00007f41786d8f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc56f5f57f R14: 00007f4175bd3300 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