watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.4:14300] Modules linked in: irq event stamp: 4626115 hardirqs last enabled at (4626114): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4626115): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4617516): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4617519): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 14300 Comm: syz-executor.4 Not tainted 6.2.0-rc3-next-20230112 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__read_once_word_nocheck+0x3/0x10 Code: e9 8b fd ff ff e8 2d c4 6a 00 e9 43 fd 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 48 8b 07 6c e4 31 03 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 RSP: 0018:ffff88806cf097e0 EFLAGS: 00000202 RAX: ffffffff811824f9 RBX: 0000000000000002 RCX: 0000000000000002 RDX: ffff88806cf09f01 RSI: ffff88806cf09fe8 RDI: ffff88806cf09fe8 RBP: ffff88806cf098c0 R08: ffffffff86063d12 R09: ffffffff86063d16 R10: ffffed100d9e131a R11: ffff88806cf098a8 R12: ffff88806cf098a9 R13: ffff88806cf098c8 R14: ffff88806cf09868 R15: ffffffff86063d17 FS: 00007fb94ddc6700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30f31000 CR3: 00000000390a6000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: unwind_next_frame+0x967/0x2130 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 set_track_prepare+0x74/0xd0 __create_object+0x3b4/0xc40 __kmem_cache_alloc_node+0x1ed/0x2f0 __kmalloc_node_track_caller+0x43/0xb0 __alloc_skb+0xe9/0x310 __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+0x1c7/0x913 __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:rcu_preempt_deferred_qs_irqrestore+0x142/0xf00 Code: 84 f6 75 3c 41 f7 c4 00 02 00 00 75 13 48 83 c4 50 5b 5d 41 5c 41 5d 41 5e 41 5f e9 8c 15 10 03 e8 53 09 1c 00 fb 48 83 c4 50 <5b> 5d 41 5c 41 5d 41 5e 41 5f e9 73 15 10 03 e8 ea 44 ff ff eb 8e RSP: 0018:ffff888034b0f630 EFLAGS: 00000286 RAX: 00000000000e4267 RBX: ffff888040e21ac0 RCX: ffffffff812b79df RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88806cf3a0c0 R08: 0000000000000001 R09: ffffffff8765792f R10: fffffbfff0ecaf25 R11: 0000000000000001 R12: 0000000000000246 R13: ffff88806cf3a0d1 R14: 0000000000000100 R15: ffff888040e21eb8 __rcu_read_unlock+0x289/0x520 __is_insn_slot_addr+0x12f/0x290 kernel_text_address+0x5b/0xc0 __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc+0x172/0x300 __create_object+0x3d/0xc40 kmem_cache_alloc_bulk+0x3ad/0x660 mas_alloc_nodes+0x276/0x8a0 mas_preallocate+0x1bf/0x370 mmap_region+0x766/0x1c20 do_mmap+0x82c/0xf50 ioctx_alloc+0x838/0x1f20 __x64_sys_io_setup+0xc8/0x1f0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fb950850b19 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:00007fb94ddc6188 EFLAGS: 00000246 ORIG_RAX: 00000000000000ce RAX: ffffffffffffffda RBX: 00007fb950963f60 RCX: 00007fb950850b19 RDX: 0000000000000000 RSI: 0000000020000780 RDI: 0000000000000d29 RBP: 00007fb9508aaf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff934c69af R14: 00007fb94ddc6300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0xf/0x20 device lo left promiscuous mode platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 syz-executor.7 (14322) used greatest stack depth: 22872 bytes left netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. ---------------- Code disassembly (best guess): 0: e9 8b fd ff ff jmpq 0xfffffd90 5: e8 2d c4 6a 00 callq 0x6ac437 a: e9 43 fd ff ff jmpq 0xfffffd52 f: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 16: 00 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: 90 nop 23: 90 nop 24: 90 nop 25: 90 nop 26: 90 nop 27: 48 8b 07 mov (%rdi),%rax * 2a: e9 6c e4 31 03 jmpq 0x331e49b <-- trapping instruction 2f: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 36: 00 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop