netlink: 164 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 164 bytes leftover after parsing attributes in process `syz-executor.7'. syz-executor.4: attempt to access beyond end of device loop4: rw=2049, sector=40, nr_sectors = 4 limit=40 watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.3:12515] Modules linked in: irq event stamp: 4254723 hardirqs last enabled at (4254722): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4254723): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4214606): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4214609): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 12515 Comm: syz-executor.3 Not tainted 6.2.0-rc2-next-20230106 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x1611/0x2130 Code: 00 00 49 8b 46 10 48 39 dd 0f 87 8d f7 ff ff 48 39 d8 0f 86 84 f7 ff ff 48 8d 53 08 48 39 d0 0f 93 c1 48 39 ea 0f 97 c0 84 c1 <0f> 84 6c f7 ff ff 48 3b 5c 24 10 0f 87 61 f7 ff ff 48 b8 00 00 00 RSP: 0018:ffff88806ce09638 EFLAGS: 00000202 RAX: ffff888039b38001 RBX: ffff888039b36fa8 RCX: 0000000000000001 RDX: ffff888039b36fb0 RSI: ffff888039b36ef8 RDI: ffff88806ce096c8 RBP: ffff888039b30000 R08: ffffffff864735d4 R09: ffffffff864735d8 R10: ffff88806ce09ff8 R11: 0000000000038001 R12: ffff888039b36ef8 R13: ffff88806ce09718 R14: ffff88806ce096b8 R15: 0000000000000001 FS: 00007f6323a94700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f62c000 CR3: 0000000044986000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x5c/0x70 kmem_cache_alloc+0x172/0x300 __create_object+0x3d/0xc40 __kmem_cache_alloc_node+0x1ed/0x2f0 __kmalloc_node_track_caller+0x43/0xb0 __alloc_skb+0xe9/0x310 __netdev_alloc_skb+0x76/0x3e0 __ieee80211_beacon_get+0x3d9/0x13c0 ieee80211_beacon_get_tim+0x99/0x540 mac80211_hwsim_beacon_tx+0x1d2/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x913 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:rcu_preempt_deferred_qs_irqrestore+0x142/0xf00 Code: 84 f6 75 3c 41 f7 c4 00 02 00 00 75 13 48 83 c4 50 5b 5d 41 5c 41 5d 41 5e 41 5f e9 3c 01 10 03 e8 33 06 1c 00 fb 48 83 c4 50 <5b> 5d 41 5c 41 5d 41 5e 41 5f e9 23 01 10 03 e8 6a 45 ff ff eb 8e RSP: 0018:ffff888039b36fa8 EFLAGS: 00000282 RAX: 00000000003b4b9f RBX: ffff888036378000 RCX: ffffffff812b788f RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88806ce3a0c0 R08: 0000000000000001 R09: ffffffff8764e93f R10: fffffbfff0ec9d27 R11: 0000000000000001 R12: 0000000000000246 R13: ffff88806ce3a0d1 R14: 0000000000010100 R15: ffff8880363783f8 __rcu_read_unlock+0x289/0x520 __is_insn_slot_addr+0x12f/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+0x5c/0x70 kmem_cache_alloc+0x172/0x300 __create_object+0x3d/0xc40 __kmem_cache_alloc_node+0x1ed/0x2f0 __kmalloc+0x46/0xc0 memcg_list_lru_alloc+0x248/0xad0 kmem_cache_alloc_lru+0x125/0x570 __d_alloc+0x31/0x9c0 d_alloc_parallel+0x10e/0x1660 __lookup_slow+0x193/0x470 walk_component+0x345/0x5b0 link_path_walk.part.0+0x750/0xe30 path_openat+0x24a/0x2a50 do_filp_open+0x1ba/0x410 do_sys_openat2+0x171/0x4c0 __x64_sys_openat+0x143/0x200 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f63264d1a04 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:00007f6323a93cc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007f63264d1a04 RDX: 0000000000001400 RSI: 00007f6323a93d60 RDI: 00000000ffffff9c RBP: 00007f6323a93d60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000001400 R13: 00007ffd506fa1ef R14: 00007f6323a94300 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): 0: 00 00 add %al,(%rax) 2: 49 8b 46 10 mov 0x10(%r14),%rax 6: 48 39 dd cmp %rbx,%rbp 9: 0f 87 8d f7 ff ff ja 0xfffff79c f: 48 39 d8 cmp %rbx,%rax 12: 0f 86 84 f7 ff ff jbe 0xfffff79c 18: 48 8d 53 08 lea 0x8(%rbx),%rdx 1c: 48 39 d0 cmp %rdx,%rax 1f: 0f 93 c1 setae %cl 22: 48 39 ea cmp %rbp,%rdx 25: 0f 97 c0 seta %al 28: 84 c1 test %al,%cl * 2a: 0f 84 6c f7 ff ff je 0xfffff79c <-- trapping instruction 30: 48 3b 5c 24 10 cmp 0x10(%rsp),%rbx 35: 0f 87 61 f7 ff ff ja 0xfffff79c 3b: 48 rex.W 3c: b8 .byte 0xb8 3d: 00 00 add %al,(%rax)