watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.2:21621] Modules linked in: irq event stamp: 2488959 hardirqs last enabled at (2488958): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2488959): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2475252): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2475255): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 21621 Comm: syz-executor.2 Not tainted 6.13.0-rc7-next-20250116 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:arch_stack_walk+0x8d/0xf0 Code: 8b 95 68 ff ff ff 85 d2 75 24 eb 36 4c 89 e7 e8 89 1f 7e 03 84 c0 74 2a 48 8d bd 68 ff ff ff e8 29 73 07 00 8b 85 68 ff ff ff <85> c0 74 14 48 8d bd 68 ff ff ff e8 83 70 07 00 48 89 c6 48 85 c0 RSP: 0018:ffff88806ce08de8 EFLAGS: 00000292 RAX: 0000000000000002 RBX: ffffffff815ec430 RCX: 0000000000000001 RDX: ffff88806ce095a0 RSI: ffff88806ce09568 RDI: ffff88806ce08df8 RBP: ffff88806ce08e80 R08: 0000000000000001 R09: ffff88806ce08e28 R10: 000000000003ab8d R11: 00000000000b8cc5 R12: ffff88806ce08eb0 R13: 0000000000000000 R14: ffff8880157f0000 R15: 0000000000092820 FS: 00007f1999d8a700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffca475af78 CR3: 0000000037c62000 CR4: 0000000000350ef0 Call Trace: 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/0x17d0 ieee80211_inform_bss+0xf4/0x10b0 cfg80211_inform_single_bss_data+0x801/0x1c70 cfg80211_inform_bss_data+0x20f/0x3520 cfg80211_inform_bss_frame_data+0x250/0x6a0 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:put_cpu_partial+0x10a/0x1b0 Code: 24 28 75 5b 49 c7 44 24 28 00 00 00 00 4c 89 e7 48 8d 35 00 00 00 00 e8 34 b0 ab ff 4d 85 ed 74 06 e8 1a 34 d5 ff fb 4d 85 f6 <74> 1c 5b 4c 89 f6 48 89 ef 5d 41 5c 41 5d 41 5e e9 c1 fa ff ff 44 RSP: 0018:ffff88803e137a40 EFLAGS: 00000246 RAX: 00000000002452b9 RBX: ffffea00002d9ec0 RCX: 1ffffffff0fe34c7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81a47376 RBP: ffff888008c41780 R08: 0000000000000001 R09: fffffbfff0fe13e9 R10: ffffffff87f09f4f R11: 0000000000000001 R12: ffff88806ce3f450 R13: 0000000000000200 R14: 0000000000000000 R15: ffff88800b67b0c0 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_kmalloc+0x6f/0x90 __kmalloc_noprof+0x1f7/0x4b0 alloc_pipe_info+0x1f1/0x5b0 splice_direct_to_actor+0x78e/0x9d0 do_splice_direct+0x17a/0x250 do_sendfile+0xa7e/0xdb0 __x64_sys_sendfile64+0x1d5/0x210 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f199c814b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f1999d8a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f199c927f60 RCX: 00007f199c814b19 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004 RBP: 00007f199c86ef6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000100000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe86f9b63f R14: 00007f1999d8a300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0x1e/0x30 ---------------- Code disassembly (best guess): 0: 8b 95 68 ff ff ff mov -0x98(%rbp),%edx 6: 85 d2 test %edx,%edx 8: 75 24 jne 0x2e a: eb 36 jmp 0x42 c: 4c 89 e7 mov %r12,%rdi f: e8 89 1f 7e 03 callq 0x37e1f9d 14: 84 c0 test %al,%al 16: 74 2a je 0x42 18: 48 8d bd 68 ff ff ff lea -0x98(%rbp),%rdi 1f: e8 29 73 07 00 callq 0x7734d 24: 8b 85 68 ff ff ff mov -0x98(%rbp),%eax * 2a: 85 c0 test %eax,%eax <-- trapping instruction 2c: 74 14 je 0x42 2e: 48 8d bd 68 ff ff ff lea -0x98(%rbp),%rdi 35: e8 83 70 07 00 callq 0x770bd 3a: 48 89 c6 mov %rax,%rsi 3d: 48 85 c0 test %rax,%rax