wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.19.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ieee80211_multicast_to_unicast net/mac80211/tx.c:3752 [inline]
RIP: 0010:ieee80211_subif_start_xmit+0x24b/0xef0 net/mac80211/tx.c:3836
Code: 03 80 3c 02 00 0f 85 3c 0c 00 00 49 8b 9f 80 14 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb d8 01 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 06 0f 8e 19 0c 00 00 0f b6 9b d8 01 00 00 31
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
RSP: 0018:ffff8880ba107390 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87c2d40a
RDX: 000000000000003b RSI: ffffffff87c2d49a RDI: 00000000000001d8
RBP: ffff8880a547d980 R08: 0000000000000000 R09: 0000000000000004
R10: 0000000000000005 R11: 0000000000000000 R12: ffffffff89670cc0
R13: ffff8880abfc4542 R14: ffff8880ab5c06d0 R15: ffff8880ab5c0600
FS:  0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000200 CR3: 0000000009e6d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __netdev_start_xmit include/linux/netdevice.h:4333 [inline]
 netdev_start_xmit include/linux/netdevice.h:4347 [inline]
 xmit_one net/core/dev.c:3256 [inline]
 dev_hard_start_xmit+0x1a8/0x920 net/core/dev.c:3272
 sch_direct_xmit+0x2d6/0xf50 net/sched/sch_generic.c:332
 qdisc_restart net/sched/sch_generic.c:395 [inline]
 __qdisc_run+0x4d0/0x1640 net/sched/sch_generic.c:403
 qdisc_run include/net/pkt_sched.h:120 [inline]
 __dev_xmit_skb net/core/dev.c:3451 [inline]
 __dev_queue_xmit+0x2102/0x2e00 net/core/dev.c:3807
 neigh_hh_output include/net/neighbour.h:491 [inline]
 neigh_output include/net/neighbour.h:499 [inline]
 ip6_finish_output2+0xde7/0x2290 net/ipv6/ip6_output.c:120
 ip6_finish_output+0x7eb/0xc10 net/ipv6/ip6_output.c:154
 NF_HOOK_COND include/linux/netfilter.h:278 [inline]
 ip6_output+0x205/0x770 net/ipv6/ip6_output.c:171
 dst_output include/net/dst.h:455 [inline]
 NF_HOOK include/linux/netfilter.h:289 [inline]
 mld_sendpack+0x674/0x1060 net/ipv6/mcast.c:1684
 mld_send_cr net/ipv6/mcast.c:1980 [inline]
 mld_ifc_timer_expire+0x616/0xdf0 net/ipv6/mcast.c:2479
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x26c/0x9a0 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x215/0x260 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:544 [inline]
 smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1094
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
 </IRQ>
RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61
Code: 48 89 df e8 c4 2f 85 f9 e9 2e ff ff ff 48 89 df e8 b7 2f 85 f9 eb 82 90 90 90 90 90 e9 07 00 00 00 0f 00 2d 74 bb 51 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d 64 bb 51 00 f4 c3 90 90 41 56 41 55
RSP: 0018:ffff8880b5aafd40 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff13e3034 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880b5a9ac44
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89f18190
R13: 1ffff11016b55fb2 R14: 0000000000000000 R15: 0000000000000000
 arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline]
 default_idle+0x49/0x310 arch/x86/kernel/process.c:557
 cpuidle_idle_call kernel/sched/idle.c:153 [inline]
 do_idle+0x2ec/0x4b0 kernel/sched/idle.c:263
 cpu_startup_entry+0xc5/0xe0 kernel/sched/idle.c:369
 start_secondary+0x435/0x5c0 arch/x86/kernel/smpboot.c:271
 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
Modules linked in:
---[ end trace aee20759daf7c270 ]---
RIP: 0010:ieee80211_multicast_to_unicast net/mac80211/tx.c:3752 [inline]
RIP: 0010:ieee80211_subif_start_xmit+0x24b/0xef0 net/mac80211/tx.c:3836
Code: 03 80 3c 02 00 0f 85 3c 0c 00 00 49 8b 9f 80 14 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb d8 01 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 06 0f 8e 19 0c 00 00 0f b6 9b d8 01 00 00 31
RSP: 0018:ffff8880ba107390 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87c2d40a
RDX: 000000000000003b RSI: ffffffff87c2d49a RDI: 00000000000001d8
RBP: ffff8880a547d980 R08: 0000000000000000 R09: 0000000000000004
R10: 0000000000000005 R11: 0000000000000000 R12: ffffffff89670cc0
R13: ffff8880abfc4542 R14: ffff8880ab5c06d0 R15: ffff8880ab5c0600
FS:  0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000200 CR3: 0000000009e6d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400