watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.6:29562] Modules linked in: irq event stamp: 4406561 hardirqs last enabled at (4406560): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4406561): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4337394): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4337397): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 29562 Comm: syz-executor.6 Not tainted 6.2.0-rc3-next-20230109 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xd99/0x2130 Code: c0 74 08 3c 03 0f 8e 92 12 00 00 41 3b 1e 0f 84 04 08 00 00 bf 01 00 00 00 e8 73 15 0f 00 b8 01 00 00 00 65 8b 15 ef c2 f0 7e <85> d2 0f 85 9e f2 ff ff 0f 1f 44 00 00 e9 94 f2 ff ff 48 8b 74 24 RSP: 0018:ffff88806ce096b0 EFLAGS: 00000213 RAX: 0000000000000001 RBX: ffff888031737888 RCX: 0000000000000000 RDX: 0000000000000102 RSI: ffff888031737858 RDI: 0000000000000001 RBP: ffff888031730000 R08: ffffffff860e39a2 R09: ffffffff860e39a6 R10: ffff88806ce09ff8 R11: ffff88806ce09770 R12: ffff88806ce09771 R13: ffff88806ce09790 R14: ffff88806ce09730 R15: 0000000000000007 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555557201c58 CR3: 000000003abda000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_kmalloc+0x7f/0x90 __kmalloc_node_track_caller+0x53/0xb0 __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+0x566/0xb10 __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:percpu_counter_add_batch+0x144/0x1a0 Code: 01 30 e8 af db 23 02 e8 7a f9 28 ff 31 ff 48 89 de e8 d0 f5 28 ff 48 85 db 74 0b e8 66 f9 28 ff e8 31 10 30 ff fb 48 83 c4 18 <5b> 5d 41 5c 41 5d 41 5e 41 5f e9 4d f9 28 ff e8 48 f9 28 ff 65 45 RSP: 0018:ffff8880317376c8 EFLAGS: 00000282 RAX: 000000000002fe41 RBX: 0000000000000200 RCX: ffffffff812b799f RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000020 R08: 0000000000000001 R09: ffffffff8764e907 R10: fffffbfff0ec9d20 R11: 0000000000000001 R12: ffff888015abd320 R13: fffffffffffffe89 R14: 0000000000000000 R15: 0000607f92e01424 unmap_page_range+0xdff/0x2c90 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x226/0x380 exit_mmap+0x158/0x6a0 mmput+0xd5/0x390 do_exit+0x99b/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: 0033:0x7fbc4a2cbb19 Code: Unable to access opcode bytes at 0x7fbc4a2cbaef. RSP: 002b:00007fbc47841188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: 0000000000000028 RBX: 00007fbc4a3def60 RCX: 00007fbc4a2cbb19 RDX: 0000000004000101 RSI: 0000000020002880 RDI: 0000000000000006 RBP: 00007fbc4a325f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9f7355cf R14: 00007fbc47841300 R15: 0000000000022000 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-rc3-next-20230109 #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 ee 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:ffff88806cf09a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff84445edb RDX: fffffbfff0b48ac9 RSI: 0000000000000004 RDI: ffffffff85a45640 RBP: ffffffff85a45640 R08: 0000000000000000 R09: ffffffff85a45643 R10: fffffbfff0b48ac8 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b48ac8 R14: 0000000000000001 R15: 1ffff1100d9e1346 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c00342d010 CR3: 000000000e636000 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+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:default_idle+0xf/0x20 Code: e3 fe fd cc cc cc cc cc cc cc cc 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 73 45 3e 00 fb f4 90 44 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 RSP: 0018:ffff888008df7e58 EFLAGS: 00000206 RAX: ffffffff84443aa0 RBX: ffff888008d85040 RCX: ffffffff84424842 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000001 R09: ffff88806cf34f83 R10: ffffed100d9e69f0 R11: 0000000000000001 R12: ffffed10011b0a08 R13: ffffffff85d0c5d0 R14: 0000000000000000 R15: dffffc0000000000 default_idle_call+0x88/0xd0 do_idle+0x3bd/0x530 cpu_startup_entry+0x18/0x20 start_secondary+0x1cc/0x220 secondary_startup_64_no_verify+0xe0/0xeb ---------------- Code disassembly (best guess): 0: c0 74 08 3c 03 shlb $0x3,0x3c(%rax,%rcx,1) 5: 0f 8e 92 12 00 00 jle 0x129d b: 41 3b 1e cmp (%r14),%ebx e: 0f 84 04 08 00 00 je 0x818 14: bf 01 00 00 00 mov $0x1,%edi 19: e8 73 15 0f 00 callq 0xf1591 1e: b8 01 00 00 00 mov $0x1,%eax 23: 65 8b 15 ef c2 f0 7e mov %gs:0x7ef0c2ef(%rip),%edx # 0x7ef0c319 * 2a: 85 d2 test %edx,%edx <-- trapping instruction 2c: 0f 85 9e f2 ff ff jne 0xfffff2d0 32: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 37: e9 94 f2 ff ff jmpq 0xfffff2d0 3c: 48 rex.W 3d: 8b .byte 0x8b 3e: 74 24 je 0x64