watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.5:26402] Modules linked in: irq event stamp: 3315479 hardirqs last enabled at (3315478): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (3315479): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (3309630): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (3309635): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 26402 Comm: syz-executor.5 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:unwind_next_frame+0x15a3/0x2130 Code: 49 0f bf 00 48 01 44 24 18 e9 31 f1 ff ff 48 b8 00 00 00 00 00 fc ff df 48 8b 14 24 48 c1 ea 03 80 3c 02 00 0f 85 0c 06 00 00 <49> 8d 7e 08 49 8b 5e 48 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 RSP: 0018:ffff88806ce09808 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000001 RDX: 1ffff1100d9c131a RSI: ffff88804e067a08 RDI: ffff88806ce098d8 RBP: ffff888042bc5780 R08: ffffffff860e808a R09: ffffffff860e808e R10: ffff88806ce09ff8 R11: ffff88806ce098c8 R12: ffff88806ce098c9 R13: ffff88806ce098e8 R14: ffff88806ce09888 R15: 0000000000000007 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f42a78dd260 CR3: 0000000005482000 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_save_free_info+0x2e/0x50 __kasan_slab_free+0x10a/0x190 __kmem_cache_free+0xd1/0x2f0 skb_release_data+0x6d8/0x810 consume_skb+0xcb/0x170 mac80211_hwsim_tx_frame+0x1f6/0x2a0 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:_raw_spin_unlock_irqrestore+0x32/0x60 Code: 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 d6 aa e7 fc 48 89 ef e8 1e 22 e8 fc 80 e7 02 74 06 e8 64 1d 0c fd fb bf 01 00 00 00 09 70 dd fc 65 8b 05 ca 1c bf 7b 85 c0 74 07 5b 5d e9 7b 29 00 RSP: 0018:ffff88804e0677b8 EFLAGS: 00000206 RAX: 0000000000328041 RBX: 0000000000000283 RCX: ffffffff812b79df RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffffff856d4760 R08: 0000000000000001 R09: ffffffff8765792f R10: fffffbfff0ecaf25 R11: 0000000000000001 R12: 0000000000000283 R13: ffff88804b348048 R14: 0000000001387780 R15: 0000000000000000 kmemleak_free+0x18a/0x200 kmem_cache_free+0xb9/0x510 ___pte_free_tlb+0x1d/0x110 free_pgd_range+0x7be/0x1330 free_pgtables+0x2d6/0x420 exit_mmap+0x1b8/0x6a0 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: 0033:0x7f8eba59eb19 Code: Unable to access opcode bytes at 0x7f8eba59eaef. RSP: 002b:00007f8eb7b14188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: fffffffffffffff5 RBX: 00007f8eba6b1f60 RCX: 00007f8eba59eb19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000640 RBP: 00007f8eba5f8f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffde453d3af R14: 00007f8eb7b14300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 ------------[ cut here ]------------ ------------[ cut here ]------------ WARNING: CPU: 1 PID: 0 at kernel/rcu/srcutree.c:680 srcu_check_nmi_safety+0xaa/0x120 Modules linked in: CPU: 1 PID: 0 Comm: swapper/1 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:srcu_check_nmi_safety+0xaa/0x120 Code: 00 00 8b 53 20 85 d2 74 11 41 39 d4 75 23 48 83 c4 08 5b 41 5c e9 2a 59 11 03 44 89 63 20 48 83 c4 08 5b 41 5c e9 1a 59 11 03 <0f> 0b e9 7b ff ff ff 80 3d 15 60 9b 04 00 75 d4 48 8d bb c8 01 00 RSP: 0018:fffffe4ecab1f720 EFLAGS: 00010006 RAX: 0000000080110002 RBX: ffffffff85656f60 RCX: 0000000000000000 RDX: ffff888008d85040 RSI: 0000000000000000 RDI: ffffffff85656f60 RBP: ffffffff879d3d68 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000100000 R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000000 R14: fffffe4ecab1f7d0 R15: 0000000000000024 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ff30b9b50c CR3: 000000000dcdc000 CR4: 0000000000350ee0 Call Trace: printk_sprint+0x176/0x2b0 vprintk_store+0x3d6/0xa00 vprintk+0x5f/0xa0 _printk+0xbe/0xf5 report_bug.cold+0x72/0xab handle_bug+0x3c/0x70 exc_invalid_op+0x18/0x50 asm_exc_invalid_op+0x1a/0x20 RIP: 0010:printk_sprint+0x286/0x2b0 Code: f0 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 22 41 83 0e 02 e9 26 fe ff ff 4c 89 e7 e8 04 ff 4e 00 e9 fd fd ff ff e8 ea fc 1a 00 <0f> 0b e9 cf fe ff ff 4c 89 f7 e8 4b ff 4e 00 eb d4 e8 74 ff 4e 00 RSP: 0018:fffffe4ecab1fb30 EFLAGS: 00010046 RAX: 0000000080110001 RBX: 0000000000100000 RCX: 0000000000000000 RDX: ffff888008d85040 RSI: ffffffff812e7656 RDI: 0000000000000005 RBP: ffffffff879d3d18 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000100000 R11: 0000000000000001 R12: 0000000000000040 R13: 0000000000000000 R14: fffffe4ecab1fbc0 R15: 0000000000000040 vprintk_store+0x3d6/0xa00 vprintk+0x5f/0xa0 _printk+0xbe/0xf5 nmi_cpu_backtrace.cold+0xab/0xf2 nmi_cpu_backtrace_handler+0xc/0x20 nmi_handle+0x144/0x3d0 default_do_nmi+0x6b/0x180 exc_nmi+0x104/0x130 end_repeat_nmi+0x16/0x67 RIP: 0010:default_idle+0xf/0x20 Code: 90 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 d3 2f 3e 00 fb f4 b0 44 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 RSP: 0018:ffff888008dffe58 EFLAGS: 00000206 RAX: ffffffff84445180 RBX: ffff888008d85040 RCX: ffffffff84425f22 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000001 R09: ffff88806cf34f83 R10: ffffed100d9e69f0 R11: 0000000000000001 R12: ffffed10011b0a08 R13: ffffffff85d10290 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 irq event stamp: 14883202 hardirqs last enabled at (14883201): [] default_idle_call+0x57/0xd0 hardirqs last disabled at (14883202): [] exc_nmi+0x8e/0x130 softirqs last enabled at (14883178): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (14883165): [] __irq_exit_rcu+0x11b/0x180 ---[ end trace 0000000000000000 ]--- WARNING: CPU: 1 PID: 0 at include/trace/events/printk.h:10 printk_sprint+0x286/0x2b0 Modules linked in: CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 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:printk_sprint+0x286/0x2b0 Code: f0 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 22 41 83 0e 02 e9 26 fe ff ff 4c 89 e7 e8 04 ff 4e 00 e9 fd fd ff ff e8 ea fc 1a 00 <0f> 0b e9 cf fe ff ff 4c 89 f7 e8 4b ff 4e 00 eb d4 e8 74 ff 4e 00 RSP: 0018:fffffe4ecab1fb30 EFLAGS: 00010046 RAX: 0000000080110001 RBX: 0000000000100000 RCX: 0000000000000000 RDX: ffff888008d85040 RSI: ffffffff812e7656 RDI: 0000000000000005 RBP: ffffffff879d3d18 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000100000 R11: 0000000000000001 R12: 0000000000000040 R13: 0000000000000000 R14: fffffe4ecab1fbc0 R15: 0000000000000040 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ff30b9b50c CR3: 000000000dcdc000 CR4: 0000000000350ee0 Call Trace: vprintk_store+0x3d6/0xa00 vprintk+0x5f/0xa0 _printk+0xbe/0xf5 nmi_cpu_backtrace.cold+0xab/0xf2 nmi_cpu_backtrace_handler+0xc/0x20 nmi_handle+0x144/0x3d0 default_do_nmi+0x6b/0x180 exc_nmi+0x104/0x130 end_repeat_nmi+0x16/0x67 RIP: 0010:default_idle+0xf/0x20 Code: 90 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 d3 2f 3e 00 fb f4 b0 44 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 RSP: 0018:ffff888008dffe58 EFLAGS: 00000206 RAX: ffffffff84445180 RBX: ffff888008d85040 RCX: ffffffff84425f22 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000001 R09: ffff88806cf34f83 R10: ffffed100d9e69f0 R11: 0000000000000001 R12: ffffed10011b0a08 R13: ffffffff85d10290 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 irq event stamp: 14883202 hardirqs last enabled at (14883201): [] default_idle_call+0x57/0xd0 hardirqs last disabled at (14883202): [] exc_nmi+0x8e/0x130 softirqs last enabled at (14883178): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (14883165): [] __irq_exit_rcu+0x11b/0x180 ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 49 0f bf 00 movswq (%r8),%rax 4: 48 01 44 24 18 add %rax,0x18(%rsp) 9: e9 31 f1 ff ff jmpq 0xfffff13f e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 15: fc ff df 18: 48 8b 14 24 mov (%rsp),%rdx 1c: 48 c1 ea 03 shr $0x3,%rdx 20: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 24: 0f 85 0c 06 00 00 jne 0x636 * 2a: 49 8d 7e 08 lea 0x8(%r14),%rdi <-- trapping instruction 2e: 49 8b 5e 48 mov 0x48(%r14),%rbx 32: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 39: fc ff df 3c: 48 89 fa mov %rdi,%rdx 3f: 48 rex.W