loop3: detected capacity change from 0 to 104 watchdog: BUG: soft lockup - CPU#1 stuck for 21s! [syz-executor.0:9782] Modules linked in: irq event stamp: 3330403 hardirqs last enabled at (3330402): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3330403): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (3315020): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3315039): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 9782 Comm: syz-executor.0 Not tainted 6.12.0-rc7-next-20241115 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:___slab_alloc+0x195/0x1200 Code: 24 28 00 00 00 00 4c 89 e7 48 8d 35 00 00 00 00 e8 a0 bd ab ff 48 83 bd 58 ff ff ff 00 74 06 e8 11 86 d5 ff fb 48 83 7b 18 00 <0f> 84 a3 0c 00 00 48 8d 05 00 00 00 00 48 89 85 60 ff ff ff 48 89 RSP: 0018:ffff88806cf09880 EFLAGS: 00000282 RAX: 000000000032d0c6 RBX: ffff88806cf40330 RCX: 1ffffffff0fdfecf RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81847a0f RBP: ffff88806cf09950 R08: 0000000000000001 R09: fffffbfff0fdddf1 R10: ffffffff87eeef8f R11: ffff88806cf40350 R12: ffff88806cf40350 R13: 00000000ffffffff R14: ffff888008c4f780 R15: ffffea0000364e00 FS: 00007fa4cfa2d700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f99ad9386f4 CR3: 000000004219e000 CR4: 0000000000350ef0 Call Trace: kmem_cache_alloc_noprof+0x228/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_node_noprof+0x311/0x3e0 __alloc_skb+0x2ad/0x370 __netdev_alloc_skb+0x7a/0x7c0 __ieee80211_beacon_get+0x3f4/0xfc0 ieee80211_beacon_get_tim+0xa6/0x280 mac80211_hwsim_beacon_tx+0x49b/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa70 hrtimer_run_softirq+0x14c/0x310 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 14 9a ab ff 4d 85 ed 74 06 e8 8a 62 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:ffff88803a8af490 EFLAGS: 00000246 RAX: 000000000032955d RBX: ffffea0000396240 RCX: 1ffffffff0fdfecf RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81849d96 RBP: ffff888008c4f780 R08: 0000000000000001 R09: fffffbfff0fdddf1 R10: ffffffff87eeef8f R11: 00000000000007e0 R12: ffff88806cf40350 R13: 0000000000000200 R14: 0000000000000000 R15: ffff88800e5896f0 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_kmalloc+0x6f/0x90 __kmalloc_noprof+0x1f7/0x4b0 security_sk_alloc+0x101/0x160 sk_prot_alloc+0x20b/0x280 sk_alloc+0x34/0xb50 __netlink_create+0x5d/0x280 __netlink_kernel_create+0xeb/0x7c0 genl_pernet_init+0xbe/0x170 ops_init+0x1e1/0x650 setup_net+0x1d7/0x7a0 copy_net_ns+0x2e3/0x6f0 create_new_namespaces+0x3f6/0xaf0 copy_namespaces+0x45c/0x580 copy_process+0x2704/0x8e90 kernel_clone+0xeb/0x850 __do_sys_clone3+0x1d9/0x260 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa4d24d8b19 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:00007fa4cfa2d188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007fa4d25ec020 RCX: 00007fa4d24d8b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007fa4d2532f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffde4858d8f R14: 00007fa4cfa2d300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 16 Comm: rcu_preempt Not tainted 6.12.0-rc7-next-20241115 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lapic_next_deadline+0x25/0x50 Code: 90 90 90 90 90 f3 0f 1e fa 66 0f 1f 44 00 00 0f 31 48 c1 e2 20 b9 e0 06 00 00 48 09 c2 48 8d 04 fa 48 89 c2 48 c1 ea 20 0f 30 <66> 90 31 c0 e9 32 ed 74 03 48 89 c6 31 d2 bf e0 06 00 00 e8 03 76 RSP: 0018:ffff88800960f830 EFLAGS: 00000016 RAX: 000002631da72774 RBX: dffffc0000000000 RCX: 00000000000006e0 RDX: 0000000000000263 RSI: ffff88806ce28300 RDI: 000000000000015d RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880095e5cb8 R10: 0000000000000003 R11: 0000000000000000 R12: 000000000000015d R13: 0000000000000003 R14: ffffed100d9c5065 R15: ffff88806ce28300 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd588f7ff8 CR3: 000000001ac70000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: clockevents_program_min_delta+0x155/0x380 clockevents_program_event+0x27c/0x360 tick_program_event+0xa4/0x140 hrtimer_reprogram+0x351/0x3f0 hrtimer_start_range_ns+0x79b/0xab0 dl_server_stop+0x40/0x90 dequeue_entities+0x12b3/0x1b90 dequeue_task_fair+0x16d/0x450 __schedule+0x4db/0x2fa0 schedule+0xdb/0x340 schedule_timeout+0x11b/0x270 rcu_gp_fqs_loop+0x1c4/0xf10 rcu_gp_kthread+0x4b7/0x6b0 kthread+0x2c2/0x3a0 ret_from_fork+0x48/0x80 ret_from_fork_asm+0x1a/0x30 ---------------- Code disassembly (best guess): 0: 24 28 and $0x28,%al 2: 00 00 add %al,(%rax) 4: 00 00 add %al,(%rax) 6: 4c 89 e7 mov %r12,%rdi 9: 48 8d 35 00 00 00 00 lea 0x0(%rip),%rsi # 0x10 10: e8 a0 bd ab ff callq 0xffabbdb5 15: 48 83 bd 58 ff ff ff cmpq $0x0,-0xa8(%rbp) 1c: 00 1d: 74 06 je 0x25 1f: e8 11 86 d5 ff callq 0xffd58635 24: fb sti 25: 48 83 7b 18 00 cmpq $0x0,0x18(%rbx) * 2a: 0f 84 a3 0c 00 00 je 0xcd3 <-- trapping instruction 30: 48 8d 05 00 00 00 00 lea 0x0(%rip),%rax # 0x37 37: 48 89 85 60 ff ff ff mov %rax,-0xa0(%rbp) 3e: 48 rex.W 3f: 89 .byte 0x89