watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.3:13642] Modules linked in: irq event stamp: 3726991 hardirqs last enabled at (3726990): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3726991): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (3721754): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3721775): [] irq_exit_rcu+0x94/0xc0 CPU: 0 UID: 0 PID: 13642 Comm: syz-executor.3 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:_raw_spin_unlock_irqrestore+0x34/0x50 Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 16 a6 ab fc 48 89 ef e8 0e 17 ac fc 80 e7 02 74 06 e8 24 26 d5 fc fb 65 ff 0d a4 54 7f 7b <74> 07 5b 5d e9 b3 1e 00 00 0f 1f 44 00 00 5b 5d e9 a7 1e 00 00 0f RSP: 0018:ffff88806ce09ea8 EFLAGS: 00000206 RAX: 000000000038de8a RBX: 0000000000000246 RCX: 1ffffffff0fdca53 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8484521c RBP: ffff888018921620 R08: 0000000000000001 R09: fffffbfff0fda9d9 R10: ffffffff87ed4ecf R11: ffffffff81518787 R12: ffff888037b4ba00 R13: ffff888018921620 R14: ffff888018921608 R15: ffff8880189215e0 FS: 00007f0eb5414700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe5e1bbff8 CR3: 000000003ad92000 CR4: 0000000000350ef0 Call Trace: skb_dequeue+0x129/0x180 ieee80211_handle_queued_frames+0x3b/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:_raw_spin_unlock_irqrestore+0x34/0x50 Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 16 a6 ab fc 48 89 ef e8 0e 17 ac fc 80 e7 02 74 06 e8 24 26 d5 fc fb 65 ff 0d a4 54 7f 7b <74> 07 5b 5d e9 b3 1e 00 00 0f 1f 44 00 00 5b 5d e9 a7 1e 00 00 0f RSP: 0018:ffff888018f2f408 EFLAGS: 00000246 RAX: 000000000038ca2d RBX: 0000000000000256 RCX: 1ffffffff0fdca53 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8484521c RBP: ffff888008ffea80 R08: 0000000000000001 R09: fffffbfff0fda9d9 R10: ffffffff87ed4ecf R11: 0000000000000000 R12: ffffea0000fd9c00 R13: ffff888008ffea80 R14: ffff88803f674400 R15: ffff888009402280 __slab_free+0x2a4/0x310 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19c/0x230 __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 uevent_net_init+0xf9/0x330 ops_init+0x1e1/0x650 setup_net+0x1d7/0x7a0 copy_net_ns+0x2e3/0x6f0 create_new_namespaces+0x3f6/0xaf0 copy_namespaces+0x45c/0x580 copy_process+0x2704/0x8e00 kernel_clone+0xeb/0x850 __do_sys_clone3+0x1d5/0x250 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0eb7e9eb19 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:00007f0eb5414188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f0eb7fb1f60 RCX: 00007f0eb7e9eb19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f0eb7ef8f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff038cc53f R14: 00007f0eb5414300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0x1e/0x30 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=2816 sclass=netlink_tcpdiag_socket pid=13678 comm=syz-executor.1 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=2816 sclass=netlink_tcpdiag_socket pid=13695 comm=syz-executor.1 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=2816 sclass=netlink_tcpdiag_socket pid=13704 comm=syz-executor.1 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 18 53 48 sbb %dl,0x48(%rbx) 3: 89 f3 mov %esi,%ebx 5: 48 8b 74 24 10 mov 0x10(%rsp),%rsi a: e8 16 a6 ab fc callq 0xfcaba625 f: 48 89 ef mov %rbp,%rdi 12: e8 0e 17 ac fc callq 0xfcac1725 17: 80 e7 02 and $0x2,%bh 1a: 74 06 je 0x22 1c: e8 24 26 d5 fc callq 0xfcd52645 21: fb sti 22: 65 ff 0d a4 54 7f 7b decl %gs:0x7b7f54a4(%rip) # 0x7b7f54cd * 29: 74 07 je 0x32 <-- trapping instruction 2b: 5b pop %rbx 2c: 5d pop %rbp 2d: e9 b3 1e 00 00 jmpq 0x1ee5 32: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 37: 5b pop %rbx 38: 5d pop %rbp 39: e9 a7 1e 00 00 jmpq 0x1ee5 3e: 0f .byte 0xf