watchdog: BUG: soft lockup - CPU#1 stuck for 25s! [syz-executor.3:9336] Modules linked in: irq event stamp: 2732925 hardirqs last enabled at (2732924): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2732925): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2731540): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2731545): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 9336 Comm: syz-executor.3 Not tainted 6.12.0-next-20241122 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0x39/0x170 Code: 53 48 89 fb 48 83 c7 10 48 89 fa 48 c1 ea 03 48 83 ec 08 0f b6 04 02 84 c0 74 08 3c 03 0f 8e e7 00 00 00 48 8d 7b 08 8b 6b 10 <48> b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 RSP: 0018:ffff88806cf08db8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff88806cf08ea0 RCX: 0000000000000001 RDX: 1ffff1100d9e11d6 RSI: ffffffff818bc8f9 RDI: ffff88806cf08ea8 RBP: 000000000000001b R08: 0000000000000001 R09: ffff88806cf08e18 R10: 000000000003c001 R11: 0000000000023f95 R12: ffff88806cf08ea0 R13: 0000000000000000 R14: ffff888031d73700 R15: 0000000000092820 FS: 00007fe31047f700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555563bcbc58 CR3: 0000000037e76000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x77/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 __kmalloc_noprof+0x37e/0x4b0 ieee802_11_parse_elems_full+0xec/0x15a0 ieee80211_inform_bss+0xf7/0x10b0 cfg80211_inform_single_bss_data+0x7fe/0x1c50 cfg80211_inform_bss_data+0x20f/0x3510 cfg80211_inform_bss_frame_data+0x250/0x690 ieee80211_bss_info_update+0x2f6/0xa90 ieee80211_scan_rx+0x474/0xac0 ieee80211_rx_list+0x1e38/0x2840 ieee80211_rx_napi+0xdc/0x3b0 ieee80211_handle_queued_frames+0xd9/0x130 tasklet_action_common+0x235/0x3b0 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:_raw_spin_unlock_irqrestore+0x34/0x50 Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 66 4e a9 fc 48 89 ef e8 6e c1 a9 fc 80 e7 02 74 06 e8 e4 1a d3 fc fb 65 ff 0d 54 bc 7c 7b <74> 07 5b 5d e9 a3 1e 00 00 0f 1f 44 00 00 5b 5d e9 97 1e 00 00 0f RSP: 0018:ffff8880398f7500 EFLAGS: 00000246 RAX: 000000000029ae17 RBX: 0000000000000246 RCX: 1ffffffff0fdfeb6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8486ea6c RBP: ffff888008c4e900 R08: 0000000000000001 R09: fffffbfff0fdddf1 R10: ffffffff87eeef8f R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffff888008c4f780 R15: 0000000000000246 __put_partials+0xc4/0x110 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_noprof+0x300/0x3d0 __kernfs_new_node+0xd4/0x850 kernfs_new_node+0x18b/0x250 __kernfs_create_file+0x55/0x360 sysfs_add_file_mode_ns+0x21c/0x440 internal_create_group+0x573/0xeb0 loop_configure+0x967/0x1220 lo_ioctl+0x8cc/0x18f0 blkdev_ioctl+0x27e/0x6d0 __x64_sys_ioctl+0x1a7/0x210 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe312f098d7 Code: 3c 1c 48 f7 d8 49 39 c4 72 b8 e8 a4 54 02 00 85 c0 78 bd 48 83 c4 08 4c 89 e0 5b 41 5c c3 0f 1f 44 00 00 b8 10 00 00 00 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:00007fe31047ef48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe312f53970 RCX: 00007fe312f098d7 RDX: 0000000000000006 RSI: 0000000000004c00 RDI: 0000000000000007 RBP: 0000000000000007 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 R13: 0000000000000006 R14: 0000000020000248 R15: 0000000000000003 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.0-next-20241122 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:asm_sysvec_apic_timer_interrupt+0x0/0x20 Code: b6 9e e4 ff e9 11 06 00 00 90 f3 0f 1e fa 0f 01 ca fc 6a ff e8 c1 04 00 00 48 89 c4 48 89 e7 e8 06 9e e4 ff e9 f1 05 00 00 90 0f 1e fa 0f 01 ca fc 6a ff e8 a1 04 00 00 48 89 c4 48 89 e7 e8 RSP: 0018:ffffffff85a07de8 EFLAGS: 00000006 RAX: 00000000001ac2db RBX: 0000000000000000 RCX: ffffffff8484caf7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812b10ea RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9c6cba R10: ffff88806ce365d3 R11: 0000000000000000 R12: ffffffff863f9410 R13: 1ffffffff0b40fc7 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c00926c000 CR3: 0000000009b66000 CR4: 0000000000350ef0 Call Trace: RIP: 0010:default_idle+0x1e/0x30 Code: 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 eb 0c 0f 1f 44 00 00 0f 00 2d e9 b0 3d 00 0f 1f 44 00 00 fb f4 e9 7c 2e 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffffffff85a07e10 EFLAGS: 00000206 loop3: detected capacity change from 0 to 512 cgroup: release_agent respecified cgroup: release_agent respecified cgroup: release_agent respecified cgroup: release_agent respecified ---------------- Code disassembly (best guess): 0: 53 push %rbx 1: 48 89 fb mov %rdi,%rbx 4: 48 83 c7 10 add $0x10,%rdi 8: 48 89 fa mov %rdi,%rdx b: 48 c1 ea 03 shr $0x3,%rdx f: 48 83 ec 08 sub $0x8,%rsp 13: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 17: 84 c0 test %al,%al 19: 74 08 je 0x23 1b: 3c 03 cmp $0x3,%al 1d: 0f 8e e7 00 00 00 jle 0x10a 23: 48 8d 7b 08 lea 0x8(%rbx),%rdi 27: 8b 6b 10 mov 0x10(%rbx),%ebp * 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction 31: fc ff df 34: 48 89 fa mov %rdi,%rdx 37: 48 c1 ea 03 shr $0x3,%rdx 3b: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 3f: 84 .byte 0x84