------------[ cut here ]------------
!oldest
WARNING: net/wireless/scan.c:513 at cfg80211_bss_expire_oldest net/wireless/scan.c:513 [inline], CPU#3: syz.2.6/5898
WARNING: net/wireless/scan.c:513 at __cfg80211_bss_update+0x196f/0x23e0 net/wireless/scan.c:2079, CPU#3: syz.2.6/5898
Modules linked in:
CPU: 3 UID: 0 PID: 5898 Comm: syz.2.6 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:cfg80211_bss_expire_oldest net/wireless/scan.c:513 [inline]
RIP: 0010:__cfg80211_bss_update+0x196f/0x23e0 net/wireless/scan.c:2079
Code: 24 ef f6 45 85 ed 0f 85 59 f9 ff ff e8 7a 2a ef f6 90 0f 0b 90 e9 4b f9 ff ff e8 6c 2a ef f6 e9 d5 fd ff ff e8 62 2a ef f6 90 <0f> 0b 90 e9 dc fa ff ff e8 54 2a ef f6 48 8b 44 24 08 48 8d 88 ac
RSP: 0000:ffffc900005f8368 EFLAGS: 00010287
RAX: 00000000000000d2 RBX: ffffffff914587e4 RCX: ffffc90001ed7000
RDX: 0000000000040000 RSI: ffffffff8b1c376e RDI: ffff88802182a580
RBP: ffff888029e00190 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88804ce38800
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888029e00190
FS:  0000000000000000(0000) GS:ffff888096c60000(0063) knlGS:00000000f5466b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000080002000 CR3: 000000004dfd6000 CR4: 0000000000352ef0
Call Trace:
 <IRQ>
 cfg80211_inform_single_bss_data+0x770/0x1dc0 net/wireless/scan.c:2406
 cfg80211_inform_bss_data+0x230/0x3c20 net/wireless/scan.c:3266
 cfg80211_inform_bss_frame_data+0x245/0x7c0 net/wireless/scan.c:3358
 ieee80211_bss_info_update+0x310/0xab0 net/mac80211/scan.c:230
 ieee80211_scan_rx+0x4e6/0xb60 net/mac80211/scan.c:364
 __ieee80211_rx_handle_packet+0xbab/0xfc0 net/mac80211/rx.c:5427
 ieee80211_rx_list+0xf19/0x2160 net/mac80211/rx.c:5720
 ieee80211_rx_napi+0xdc/0x400 net/mac80211/rx.c:5743
 ieee80211_rx include/net/mac80211.h:5449 [inline]
 ieee80211_handle_queued_frames+0xc8/0x120 net/mac80211/main.c:452
 tasklet_action_common+0x2de/0x3d0 kernel/softirq.c:961
 handle_softirqs+0x1e6/0x9d0 kernel/softirq.c:645
 do_softirq kernel/softirq.c:546 [inline]
 do_softirq+0xaf/0xf0 kernel/softirq.c:533
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0xff/0x120 kernel/softirq.c:473
 ieee80211_tx_skb_tid+0x1c4/0x550 net/mac80211/tx.c:6522
 ieee80211_mgmt_tx+0x143e/0x26a0 net/mac80211/offchannel.c:1025
 rdev_mgmt_tx net/wireless/rdev-ops.h:768 [inline]
 cfg80211_mlme_mgmt_tx+0x800/0x15b0 net/wireless/mlme.c:1007
 nl80211_tx_mgmt+0xa73/0x1010 net/wireless/nl80211.c:14888
 genl_family_rcv_msg_doit+0x214/0x300 net/netlink/genetlink.c:1114
 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline]
 genl_rcv_msg+0x560/0x800 net/netlink/genetlink.c:1209
 netlink_rcv_skb+0x159/0x420 net/netlink/af_netlink.c:2556
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1900
 sock_sendmsg_nosec net/socket.c:800 [inline]
 __sock_sendmsg net/socket.c:815 [inline]
 ____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2713
 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2767
 __sys_sendmsg+0x160/0x210 net/socket.c:2799
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7fa7fec
Code: Unable to access opcode bytes at 0xf7fa7fc2.
RSP: 002b:00000000f546650c EFLAGS: 00000292 ORIG_RAX: 0000000000000172
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080003740
RDX: 0000000000008800 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>