IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
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
CPU: 1 PID: 9256 Comm: syz-executor.3 Not tainted 4.19.204-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ieee80211_chanctx_num_assigned+0x9d/0x120 net/mac80211/chan.c:20
Code: 98 e0 f7 ff ff 49 39 c4 b8 00 00 00 00 74 35 49 bd 00 00 00 00 00 fc ff df 48 8d bb 20 08 00 00 83 c0 01 48 89 fa 48 c1 ea 03 <42> 80 3c 2a 00 75 55 48 8b 93 20 08 00 00 48 8d 9a e0 f7 ff ff 49
RSP: 0018:ffff8881d3a572e0 EFLAGS: 00010a02
RAX: 0000000000000002 RBX: deacfffffffff8e0 RCX: ffffed103a3b3560
RDX: 1bd5a00000000020 RSI: 0000000000000000 RDI: dead000000000100
RBP: ffff8881d3a57300 R08: 1ffff1103a3b3560 R09: ffffed103eca4552
R10: ffffed103eca4552 R11: ffff8881f6522a93 R12: ffff8881f3c27520
R13: dffffc0000000000 R14: ffff8881f3c27500 R15: 0000000000000000
FS:  00007f62dad07700(0000) GS:ffff8881f6500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f62dacc5718 CR3: 00000001f286e001 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ieee80211_assign_vif_chanctx+0x58c/0x10e0 net/mac80211/chan.c:676
 __ieee80211_vif_release_channel+0x1ff/0x370 net/mac80211/chan.c:1543
 ieee80211_vif_release_channel+0xed/0x1c0 net/mac80211/chan.c:1757
 ieee80211_ibss_disconnect+0x4f7/0xc60 net/mac80211/ibss.c:744
 ieee80211_ibss_leave+0xf/0x150 net/mac80211/ibss.c:1858
 ieee80211_leave_ibss+0x10/0x20 net/mac80211/cfg.c:2271
 rdev_leave_ibss net/wireless/rdev-ops.h:531 [inline]
 __cfg80211_leave_ibss+0x139/0x5a0 net/wireless/ibss.c:206
 cfg80211_leave_ibss+0x57/0x80 net/wireless/ibss.c:224
 cfg80211_change_iface+0xb6b/0xfe0 net/wireless/util.c:956
 nl80211_set_interface+0x45e/0x880 net/wireless/nl80211.c:3205
 genl_family_rcv_msg+0x599/0x1000 net/netlink/genetlink.c:602
 genl_rcv_msg+0xa7/0x140 net/netlink/genetlink.c:627
 netlink_rcv_skb+0x13e/0x3d0 net/netlink/af_netlink.c:2457
 genl_rcv+0x23/0x40 net/netlink/genetlink.c:638
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x443/0x660 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x667/0xc60 net/netlink/af_netlink.c:1911
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xac/0xf0 net/socket.c:661
 ___sys_sendmsg+0x647/0x950 net/socket.c:2225
 __sys_sendmsg+0xd9/0x180 net/socket.c:2263
 __do_sys_sendmsg net/socket.c:2272 [inline]
 __se_sys_sendmsg net/socket.c:2270 [inline]
 __x64_sys_sendmsg+0x73/0xb0 net/socket.c:2270
 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x465889
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:00007f62dad07188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000055bf00 RCX: 0000000000465889
RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000003
RBP: 00000000004af68d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000055bf00
R13: 00007fffb679362f R14: 00007f62dad07300 R15: 0000000000022000
Modules linked in:
---[ end trace d357bde3804b5ec6 ]---
RIP: 0010:ieee80211_chanctx_num_assigned+0x9d/0x120 net/mac80211/chan.c:20
Code: 98 e0 f7 ff ff 49 39 c4 b8 00 00 00 00 74 35 49 bd 00 00 00 00 00 fc ff df 48 8d bb 20 08 00 00 83 c0 01 48 89 fa 48 c1 ea 03 <42> 80 3c 2a 00 75 55 48 8b 93 20 08 00 00 48 8d 9a e0 f7 ff ff 49
RSP: 0018:ffff8881d3a572e0 EFLAGS: 00010a02
RAX: 0000000000000002 RBX: deacfffffffff8e0 RCX: ffffed103a3b3560
RDX: 1bd5a00000000020 RSI: 0000000000000000 RDI: dead000000000100
RBP: ffff8881d3a57300 R08: 1ffff1103a3b3560 R09: ffffed103eca4552
R10: ffffed103eca4552 R11: ffff8881f6522a93 R12: ffff8881f3c27520
R13: dffffc0000000000 R14: ffff8881f3c27500 R15: 0000000000000000
FS:  00007f62dad07700(0000) GS:ffff8881f6500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000055c000 CR3: 00000001f286e001 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 5 bytes skipped:
   0:	49 39 c4             	cmp    %rax,%r12
   3:	b8 00 00 00 00       	mov    $0x0,%eax
   8:	74 35                	je     0x3f
   a:	49 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%r13
  11:	fc ff df
  14:	48 8d bb 20 08 00 00 	lea    0x820(%rbx),%rdi
  1b:	83 c0 01             	add    $0x1,%eax
  1e:	48 89 fa             	mov    %rdi,%rdx
  21:	48 c1 ea 03          	shr    $0x3,%rdx
* 25:	42 80 3c 2a 00       	cmpb   $0x0,(%rdx,%r13,1) <-- trapping instruction
  2a:	75 55                	jne    0x81
  2c:	48 8b 93 20 08 00 00 	mov    0x820(%rbx),%rdx
  33:	48 8d 9a e0 f7 ff ff 	lea    -0x820(%rdx),%rbx
  3a:	49                   	rex.WB