netlink: 8 bytes leftover after parsing attributes in process `syz-executor.6'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.6'. watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.2:42864] Modules linked in: irq event stamp: 7751655 hardirqs last enabled at (7751654): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (7751655): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (7743892): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (7743895): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 42864 Comm: syz-executor.2 Tainted: G L 6.4.0-rc4-next-20230602 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lock_release+0x14/0x680 Code: fd ff ff 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 41 57 41 56 41 55 <49> 89 f5 41 54 49 89 fc 55 53 48 81 ec 90 00 00 00 48 c7 44 24 10 RSP: 0018:ffff88806ce095d0 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000100 RDX: ffff88804513d1c0 RSI: ffffffff814c8895 RDI: ffffffff8560b300 RBP: ffffffffa0008000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff856526a8 R15: 0000000000092820 FS: 00007f02e970f700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555574d2c58 CR3: 000000000fdaa000 CR4: 0000000000350ef0 Call Trace: __is_insn_slot_addr+0x147/0x290 kernel_text_address+0x48/0xc0 __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc+0x172/0x390 __create_object+0x3c/0xc90 kmem_cache_alloc_node+0x229/0x3a0 kmalloc_reserve+0x169/0x270 __alloc_skb+0x129/0x330 __netdev_alloc_skb+0x72/0x370 __ieee80211_beacon_get+0x3f6/0xfc0 ieee80211_beacon_get_tim+0xa1/0x550 mac80211_hwsim_beacon_tx+0x402/0x730 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x59d/0xb60 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:qlist_free_all+0xc7/0x1a0 Code: 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 b9 d4 aa 03 48 8b 48 08 48 89 c2 f6 c1 01 0f 85 ba 00 00 00 0f 1f 44 00 00 48 8b 02 c4 02 b8 00 00 00 00 48 0f 44 d0 4c 8b 72 08 e9 50 ff ff ff 49 RSP: 0018:ffff88804d2dfc08 EFLAGS: 00000202 RAX: 0100000000010200 RBX: ffff888045bc6a00 RCX: ffffea000116f101 RDX: ffffea000116f100 RSI: ffffea00015eb800 RDI: 0000000040000000 RBP: 0000000000000000 R08: ffff888045bc6a00 R09: 0000000080100006 R10: ffffea00015eb800 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff88804d2dfc48 R14: 0000000000000000 R15: ffff888057ae4000 kasan_quarantine_reduce+0x199/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc+0x172/0x390 __alloc_file+0x21/0x240 alloc_empty_file+0x71/0x190 alloc_file+0x5e/0x810 alloc_file_pseudo+0x16e/0x260 sock_alloc_file+0x53/0x1e0 __sys_socket+0x1ac/0x250 __x64_sys_socket+0x73/0xb0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f02ec199b19 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:00007f02e970f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f02ec2acf60 RCX: 00007f02ec199b19 RDX: 0000000000000088 RSI: 0000000000000002 RDI: 000000000000000a RBP: 00007f02ec1f3f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff5e809a4f R14: 00007f02e970f300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess), 3 bytes skipped: 0: 0f 1f 00 nopl (%rax) 3: 90 nop 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: f3 0f 1e fa endbr64 17: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1e: fc ff df 21: 41 57 push %r15 23: 41 56 push %r14 25: 41 55 push %r13 * 27: 49 89 f5 mov %rsi,%r13 <-- trapping instruction 2a: 41 54 push %r12 2c: 49 89 fc mov %rdi,%r12 2f: 55 push %rbp 30: 53 push %rbx 31: 48 81 ec 90 00 00 00 sub $0x90,%rsp 38: 48 rex.W 39: c7 .byte 0xc7 3a: 44 24 10 rex.R and $0x10,%al