watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.5:7266] Modules linked in: irq event stamp: 3615367 hardirqs last enabled at (3615366): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3615367): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (3606746): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3606749): [] irq_exit_rcu+0x94/0xc0 CPU: 1 UID: 0 PID: 7266 Comm: syz-executor.5 Not tainted 6.12.0-rc3-next-20241016 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x16dc/0x2490 Code: 00 0f 85 b3 08 00 00 49 8d 7f 10 49 8b 6f 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 86 08 00 00 <49> 8b 47 10 48 39 dd 0f 87 d1 f5 ff ff 48 39 d8 0f 86 c8 f5 ff ff RSP: 0018:ffff88806cf08e18 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff888019037a58 RCX: 0000000000000001 RDX: 1ffff1100d9e11d3 RSI: ffff888019037a28 RDI: ffff88806cf08e98 RBP: ffff888019030000 R08: 0000000000000001 R09: ffff88806cf08ec8 R10: 000000000003c001 R11: 0000000000026571 R12: ffff88806cf08ee8 R13: ffff88806cf08ed0 R14: ffff888019037a28 R15: ffff88806cf08e88 FS: 00007f8888b2a700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2057cfb258 CR3: 000000001b098000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_kmalloc+0x7f/0x90 __kmalloc_noprof+0x1f7/0x4b0 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+0x21ec/0x2cf0 ieee80211_rx_napi+0xdc/0x3b0 ieee80211_handle_queued_frames+0xd9/0x130 tasklet_action_common+0x235/0x3b0 handle_softirqs+0x1b1/0x770 irq_exit_rcu+0x94/0xc0 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:free_unref_page_commit+0xa/0xd40 Code: 5d 41 5c 41 5d 41 5e 41 5f e9 12 0a 02 03 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 b8 00 00 00 00 00 fc ff df <41> 57 41 89 cf 44 89 c1 41 56 41 55 49 89 d5 41 54 49 89 f4 55 48 RSP: 0018:ffff8880190374f0 EFLAGS: 00000286 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffffea00002e1e00 RSI: ffff88806cf41500 RDI: ffff88807ffdcb80 RBP: ffff88806cf41500 R08: 0000000000000003 R09: fffffbfff0fda9d4 R10: ffffffff87ed4ea7 R11: 00000000000c2f81 R12: ffff88807ffdcb80 R13: 000000000000b878 R14: 0000000000000003 R15: ffffea00002e1e00 free_unref_page+0x55e/0xc40 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19c/0x230 __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 security_inode_alloc+0x3e/0x130 inode_init_always_gfp+0xc27/0xf60 alloc_inode+0x89/0x240 new_inode+0x1c/0x190 proc_pid_make_inode+0x21/0x170 proc_pid_make_base_inode.constprop.0+0x25/0x180 proc_task_instantiate+0x54/0x1f0 proc_task_lookup+0x51b/0x620 __lookup_slow+0x252/0x470 walk_component+0x345/0x5b0 link_path_walk.part.0+0x553/0xd50 path_openat+0x2e3/0x2980 do_filp_open+0x1b8/0x410 do_sys_openat2+0x164/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f888b567a04 Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44 RSP: 002b:00007f8888b2a060 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f888b6c7f60 RCX: 00007f888b567a04 RDX: 0000000000000002 RSI: 00007f8888b2a0f0 RDI: 00000000ffffff9c RBP: 00007f8888b2a0f0 R08: 0000000000000000 R09: 00007f8888b29f70 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 00007ffc600768ef R14: 00007f8888b2a300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0x1e/0x30 kernel write not supported for file /vcsa1 (pid: 10 comm: kworker/0:1) ---------------- Code disassembly (best guess): 0: 00 0f add %cl,(%rdi) 2: 85 b3 08 00 00 49 test %esi,0x49000008(%rbx) 8: 8d 7f 10 lea 0x10(%rdi),%edi b: 49 8b 6f 08 mov 0x8(%r15),%rbp f: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 16: fc ff df 19: 48 89 fa mov %rdi,%rdx 1c: 48 c1 ea 03 shr $0x3,%rdx 20: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 24: 0f 85 86 08 00 00 jne 0x8b0 * 2a: 49 8b 47 10 mov 0x10(%r15),%rax <-- trapping instruction 2e: 48 39 dd cmp %rbx,%rbp 31: 0f 87 d1 f5 ff ff ja 0xfffff608 37: 48 39 d8 cmp %rbx,%rax 3a: 0f 86 c8 f5 ff ff jbe 0xfffff608