RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665d9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 00007f8d769d01d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff7f3f997f R14: 00007f8d769d0300 R15: 0000000000022000
WARNING: CPU: 1 PID: 8157 at net/mac80211/tx.c:4134 __ieee80211_csa_update_counter net/mac80211/tx.c:4134 [inline]
WARNING: CPU: 1 PID: 8157 at net/mac80211/tx.c:4134 __ieee80211_csa_update_counter net/mac80211/tx.c:4129 [inline]
WARNING: CPU: 1 PID: 8157 at net/mac80211/tx.c:4134 __ieee80211_beacon_get+0x1678/0x1a30 net/mac80211/tx.c:4327
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 8157 Comm: syz-executor.5 Not tainted 4.19.190-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:__ieee80211_csa_update_counter net/mac80211/tx.c:4134 [inline]
RIP: 0010:__ieee80211_csa_update_counter net/mac80211/tx.c:4129 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1678/0x1a30 net/mac80211/tx.c:4327
Code: 85 70 03 00 00 41 0f b6 45 24 31 ff 44 8d 60 ff 45 88 65 24 44 89 e6 e8 b6 b8 c0 f9 45 84 e4 0f 85 4f f5 ff ff e8 78 b7 c0 f9 <0f> 0b e9 43 f5 ff ff e8 6c b7 c0 f9 e8 d7 e5 ae f9 31 ff 41 89 c4
RSP: 0018:ffff8880ba107c18 EFLAGS: 00010206
RAX: ffff88804a7e2400 RBX: ffff88809211e4d0 RCX: ffffffff87a1a6ea
RDX: 0000000000000100 RSI: ffffffff87a1a6f8 RDI: 0000000000000001
RBP: ffff888041d39ae0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: ffff888096ae2500 R14: 0000000000000000 R15: ffff8880ba107d60
 ieee80211_beacon_get_tim+0x88/0x890 net/mac80211/tx.c:4443
 ieee80211_beacon_get include/net/mac80211.h:4484 [inline]
 mac80211_hwsim_beacon_tx+0xff/0x680 drivers/net/wireless/mac80211_hwsim.c:1577
 __iterate_interfaces+0x2e1/0x4a0 net/mac80211/util.c:614
 ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:650
 mac80211_hwsim_beacon+0xc9/0x190 drivers/net/wireless/mac80211_hwsim.c:1615
 __tasklet_hrtimer_trampoline+0x29/0xa0 kernel/softirq.c:601
 tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522
 __do_softirq+0x265/0x980 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:535 [inline]
 smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
 </IRQ>
RIP: 0010:mntget+0x0/0x50 fs/namespace.c:1193
Code: 89 e7 e8 c3 25 ee ff eb 95 e8 bc 25 ee ff eb ae 48 89 df e8 b2 25 ee ff e9 5b ff ff ff e8 18 25 ee ff eb c8 66 0f 1f 44 00 00 <41> 54 49 89 fc e8 06 62 b8 ff 4d 85 e4 74 29 e8 fc 61 b8 ff 49 8d
RSP: 0018:ffff88804a7efb10 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff88804a7e2400 RBX: ffff88804a7efc78 RCX: ffffffff81a5ca41
RDX: 0000000000000000 RSI: ffffffff81a5cc06 RDI: ffff88809ab86e20
RBP: ffff88804a7efb70 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff88804a7efbd8
R13: ffff88809ab86e20 R14: ffff88804a7efcb0 R15: 0000000000000000
 pick_link+0x27e/0xaf0 fs/namei.c:1730
 step_into fs/namei.c:1787 [inline]
 mountpoint_last fs/namei.c:2677 [inline]
 path_mountpoint+0x805/0xac0 fs/namei.c:2696
 filename_mountpoint+0x184/0x4f0 fs/namei.c:2718
 ksys_umount+0x156/0x1070 fs/namespace.c:1645
 __do_sys_umount fs/namespace.c:1671 [inline]
 __se_sys_umount fs/namespace.c:1669 [inline]
 __x64_sys_umount+0x50/0x70 fs/namespace.c:1669
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x467a37
Code: ff d0 48 89 c7 b8 3c 00 00 00 0f 05 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 a6 00 00 00 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:00007ffdb40faa08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000467a37
RDX: 00007ffdb40faae0 RSI: 0000000000000002 RDI: 00007ffdb40faad0
RBP: 00007ffdb40faad0 R08: 00000000ffffffff R09: 00007ffdb40fa8a0
R10: 00000000033428c3 R11: 0000000000000246 R12: 00000000004bee70
R13: 00007ffdb40fbba0 R14: 0000000003342810 R15: 00007ffdb40fbbe0
Kernel Offset: disabled
Rebooting in 86400 seconds..