netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 9633 at net/mac80211/rx.c:4321 ieee80211_rx_napi+0x177a/0x1e40 net/mac80211/rx.c:4321 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 9633 Comm: syz-executor.3 Not tainted 4.14.198-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 panic+0x1f9/0x42d kernel/panic.c:183 __warn.cold+0x20/0x4b kernel/panic.c:547 report_bug+0x208/0x249 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964 RIP: 0010:ieee80211_rx_napi+0x177a/0x1e40 net/mac80211/rx.c:4321 RSP: 0018:ffff8880aea07d28 EFLAGS: 00010206 RAX: ffff8880a4ac0600 RBX: 0000000000000000 RCX: 1ffff11015d40fb2 RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffff8880632c217c RBP: ffff8880632c1640 R08: ffffffff8a0934a8 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880632c34e0 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. R13: ffff8880a7850e00 R14: ffff8880632c2240 R15: ffff8880632c1c20 ieee80211_rx include/net/mac80211.h:4026 [inline] ieee80211_tasklet_handler+0x90/0xf0 net/mac80211/main.c:228 tasklet_action+0x195/0x340 kernel/softirq.c:513 ieee80211 phy12: mac80211_hwsim_start __do_softirq+0x254/0xa1d kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x193/0x240 kernel/softirq.c:409 ieee80211 phy12: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:0c:00) exiting_irq arch/x86/include/asm/apic.h:648 [inline] smp_apic_timer_interrupt+0x141/0x5e0 arch/x86/kernel/apic/apic.c:1102 apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:793 RIP: 0010:preempt_count_sub+0x8/0x130 kernel/sched/core.c:3126 RSP: 0018:ffff88805d90efd8 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff10 RAX: ffffffff8a5a8c00 RBX: 1ffff1100bb21e04 RCX: ffffffff88f2a101 RDX: ffff88805d90f3d0 RSI: ffff88805d90ef98 RDI: 0000000000000001 RBP: ffff88805d90f3c8 R08: 0000000000000001 R09: 0000000000000001 R10: ffff88805d90f3c8 R11: 0000000000000001 R12: ffff88805d908000 R13: ffff88805d90f0e0 R14: ffff88805d90f0f8 R15: ffff88805d90f0a8 unwind_next_frame+0xe54/0x17d0 arch/x86/kernel/unwind_orc.c:505 ieee80211 phy12: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:0c:00) ieee80211 phy12: ERP_CTS_PROT: 0 __save_stack_trace+0x90/0x160 arch/x86/kernel/stacktrace.c:44 ieee80211 phy12: ERP_PREAMBLE: 0 save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551 ieee80211 phy12: ERP_SLOT: 0 ieee80211 phy12: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2) ieee80211 phy12: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2) kmem_cache_alloc_node+0x146/0x410 mm/slab.c:3642 __alloc_skb+0x5c/0x510 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:980 [inline] alloc_skb_with_frags+0x85/0x500 net/core/skbuff.c:5228 sock_alloc_send_pskb+0x577/0x6d0 net/core/sock.c:2083 ieee80211 phy12: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3) __ip_append_data+0x11ec/0x1ff0 net/ipv4/ip_output.c:972 ieee80211 phy12: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7) ip_make_skb+0x167/0x1b0 net/ipv4/ip_output.c:1489 ieee80211 phy12: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:0c:00) udp_sendmsg+0x156f/0x1c00 net/ipv4/udp.c:1052 ieee80211 phy12: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static) ieee80211 phy12: mac80211_hwsim_configure_filter inet_sendmsg+0x11a/0x4e0 net/ipv4/af_inet.c:762 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x326/0x800 net/socket.c:2062 IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready ieee80211 phy12: mac80211_hwsim_configure_filter ieee80211 phy12: mac80211_hwsim_bss_info_changed(changed=0x10 vif->addr=02:00:00:00:0c:00) __sys_sendmmsg+0x129/0x330 net/socket.c:2152 SYSC_sendmmsg net/socket.c:2183 [inline] SyS_sendmmsg+0x2f/0x50 net/socket.c:2178 ieee80211 phy12: HT: op_mode=0xb do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45de59 RSP: 002b:00007f8566d95c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000027f00 RCX: 000000000045de59 RDX: 000000000800001d RSI: 0000000020007fc0 RDI: 0000000000000003 RBP: 000000000118c010 R08: 0000000000000000 R09: 0000000000000000 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bfd4 R13: 00007fff78bb0bef R14: 00007f8566d969c0 R15: 000000000118bfd4 Kernel Offset: disabled Rebooting in 86400 seconds..