watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.7:18504] Modules linked in: irq event stamp: 4961375 hardirqs last enabled at (4961374): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4961375): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4936906): [] irq_exit_rcu+0x11f/0x190 softirqs last disabled at (4936909): [] irq_exit_rcu+0x11f/0x190 CPU: 0 PID: 18504 Comm: syz-executor.7 Not tainted 6.2.0-rc4-next-20230117 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__kernel_text_address+0x32/0x40 Code: e8 23 ff ff ff 85 c0 75 1b 48 81 fb 00 e0 5b 86 72 0c 31 c0 48 81 fb cc 13 6c 86 0f 92 c0 5b e9 88 cc 25 03 b8 01 00 00 00 5b 7d cc 25 03 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 RSP: 0018:ffff88806ce09658 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffff88806ce09678 RCX: 0000000000000000 RDX: 1ffff1100d9c12da RSI: ffff888042707f18 RDI: ffffffff844258cd RBP: ffff88806ce096d0 R08: ffffffff860977e4 R09: ffffffff860977e8 R10: ffff88806ce09ff8 R11: ffff88806ce096b8 R12: ffff88806ce09740 R13: 0000000000000000 R14: ffff888016c58000 R15: 00000000000000f0 FS: 00007f9bcb7dd700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff4e5d2ab58 CR3: 000000002a710000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: 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_node+0x215/0x310 __alloc_skb+0x21a/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+0x566/0xb10 __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+0x274/0x8ff irq_exit_rcu+0x11f/0x190 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:mas_next_nentry+0x11a/0x9e0 Code: b6 04 02 48 89 f2 83 e2 07 38 d0 7f 08 84 c0 0f 85 6c 07 00 00 44 0f b6 7d 39 31 ff 44 89 fe 44 89 fb e8 f9 87 1e fd 45 84 ff <0f> 84 24 07 00 00 e8 1b 8c 1e fd 41 83 ef 01 48 8b 04 24 4d 63 ff RSP: 0018:ffff8880427079d0 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff842af647 RDX: ffff888016c58000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffff888042707b40 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000001 R12: 00007f9bcb7bdfff R13: 0000000000000001 R14: ffff888032ac0400 R15: 0000000000000002 mas_find+0x1d6/0xe00 acct_collect+0x1ca/0x880 do_exit+0x792/0x2780 do_group_exit+0xd4/0x2a0 get_signal+0x2255/0x2390 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0xf5/0x190 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f9bce267b62 Code: 00 00 00 00 00 0f 1f 00 41 f7 c1 ff 0f 00 00 75 27 55 48 89 fd 53 89 cb 48 85 ff 74 3b 41 89 da 48 89 ef b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 66 5b 5d c3 0f 1f 00 48 c7 c0 bc ff ff ff 64 RSP: 002b:00007f9bcb7dd0f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 RAX: 0000000020ff7000 RBX: 0000000000008011 RCX: 00007f9bce267b62 RDX: 0000000000000003 RSI: 0000000000200000 RDI: 0000000020ff7000 RBP: 0000000020ff7000 R08: 0000000000000005 R09: 0000000010000000 R10: 0000000000008011 R11: 0000000000000206 R12: 0000000020000640 R13: 0000000020ff7000 R14: 00000000200003c0 R15: 0000000020ffb000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.2.0-rc4-next-20230117 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc90 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 e6 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 de 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e4 00 00 RSP: 0018:ffff88806cf09a30 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8444746b RDX: fffffbfff0b49155 RSI: 0000000000000004 RDI: ffffffff85a48aa0 RBP: ffffffff85a48aa0 R08: 0000000000000000 R09: ffffffff85a48aa3 R10: fffffbfff0b49154 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b49154 R14: 0000000000000001 R15: 1ffff1100d9e1347 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7253c53e40 CR3: 000000000bbaa000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: 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+0x566/0xb10 __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+0x274/0x8ff irq_exit_rcu+0x11f/0x190 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0xf/0x20 Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 63 10 40 00 fb f4 e9 bf 23 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff888008dffe70 EFLAGS: 00000206 RAX: 00000000002ff317 RBX: 0000000000000001 RCX: ffffffff84425e02 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff888008d85040 R08: 0000000000000001 R09: ffff88806cf34f83 R10: ffffed100d9e69f0 R11: 0000000000000001 R12: ffffed10011b0a08 R13: ffffffff85d10490 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x67/0xa0 do_idle+0x30d/0x3e0 cpu_startup_entry+0x18/0x20 start_secondary+0x1cc/0x220 secondary_startup_64_no_verify+0xe0/0xeb ---------------- Code disassembly (best guess): 0: e8 23 ff ff ff callq 0xffffff28 5: 85 c0 test %eax,%eax 7: 75 1b jne 0x24 9: 48 81 fb 00 e0 5b 86 cmp $0xffffffff865be000,%rbx 10: 72 0c jb 0x1e 12: 31 c0 xor %eax,%eax 14: 48 81 fb cc 13 6c 86 cmp $0xffffffff866c13cc,%rbx 1b: 0f 92 c0 setb %al 1e: 5b pop %rbx 1f: e9 88 cc 25 03 jmpq 0x325ccac 24: b8 01 00 00 00 mov $0x1,%eax 29: 5b pop %rbx * 2a: e9 7d cc 25 03 jmpq 0x325ccac <-- trapping instruction 2f: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1) 36: 00 00 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop