watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.4:6645] Modules linked in: irq event stamp: 2699513 hardirqs last enabled at (2699512): [<ffffffff8460144a>] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (2699513): [<ffffffff8440522f>] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (2693436): [<ffffffff81182e7b>] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (2693451): [<ffffffff81182e7b>] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 6645 Comm: syz-executor.4 Not tainted 6.1.0-next-20221219 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__orc_find+0x66/0xf0 Code: 8d 6b 04 49 89 de 49 39 ec 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 RSP: 0018:ffff88806cf09568 EFLAGS: 00000216 RAX: ffffffff85db1654 RBX: ffffffff85db1654 RCX: ffffffff81695db2 RDX: 000000000000000a RSI: ffffffff860da972 RDI: ffffffff85db1614 RBP: ffffffff85db1640 R08: ffffffff860da972 R09: ffffffff860f1332 R10: ffffed100d9e12d3 R11: 0000000000038001 R12: ffffffff85db1668 R13: ffffffff85db1614 R14: ffffffff85db163c R15: dffffc0000000000 FS: 00007fbcb097d700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555749ec58 CR3: 000000001e89a000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: <IRQ> 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/0xc40 __kmem_cache_alloc_node+0x25b/0x400 __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+0x54b/0xc70 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 </IRQ> <TASK> 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 f6 a2 e9 fc 48 89 ef e8 0e 1a ea fc 80 e7 02 74 06 e8 04 d4 0d fd fb bf 01 00 00 00 <e8> b9 74 df fc 65 8b 05 ca 19 c1 7b 85 c0 74 07 5b 5d e9 3b 29 00 RSP: 0018:ffff888046e97478 EFLAGS: 00000202 RAX: 0000000000291949 RBX: 0000000000000246 RCX: ffffffff812b740f RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffff88800844e900 R08: 0000000000000001 R09: ffffffff87635937 R10: fffffbfff0ec6b26 R11: 0000000000000001 R12: ffff88800844e900 R13: 0000000000000246 R14: 0000000000000000 R15: ffffea00005b8f00 __unfreeze_partials+0x11c/0x150 qlist_free_all+0x6d/0x1a0 kasan_quarantine_reduce+0x196/0x230 __kasan_slab_alloc+0x4c/0x70 kmem_cache_alloc+0x1e1/0x410 ptlock_alloc+0x21/0x70 pte_alloc_one+0x6c/0x200 __pte_alloc+0x6d/0x210 copy_page_range+0x1c19/0x4430 dup_mmap+0xa4a/0x10b0 copy_process+0x6b69/0x7220 kernel_clone+0xeb/0x950 __do_sys_clone3+0x1d9/0x370 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fbcb3407b19 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:00007fbcb097d188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007fbcb351af60 RCX: 00007fbcb3407b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000640 RBP: 00007fbcb3461f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe5b94f0af R14: 00007fbcb097d300 R15: 0000000000022000 </TASK> Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess): 0: 8d 6b 04 lea 0x4(%rbx),%ebp 3: 49 89 de mov %rbx,%r14 6: 49 39 ec cmp %rbp,%r12 9: 72 4d jb 0x58 b: 4c 89 e0 mov %r12,%rax e: 48 29 e8 sub %rbp,%rax 11: 48 89 c2 mov %rax,%rdx 14: 48 c1 e8 3f shr $0x3f,%rax 18: 48 c1 fa 02 sar $0x2,%rdx 1c: 48 01 d0 add %rdx,%rax 1f: 48 d1 f8 sar %rax 22: 48 8d 5c 85 00 lea 0x0(%rbp,%rax,4),%rbx 27: 48 89 d8 mov %rbx,%rax * 2a: 48 c1 e8 03 shr $0x3,%rax <-- trapping instruction 2e: 42 0f b6 14 38 movzbl (%rax,%r15,1),%edx 33: 48 89 d8 mov %rbx,%rax 36: 83 e0 07 and $0x7,%eax 39: 83 c0 03 add $0x3,%eax 3c: 38 d0 cmp %dl,%al 3e: 7c 04 jl 0x44