------------[ cut here ]------------
WARNING: CPU: 0 PID: 6757 at net/mac80211/tx.c:5049 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5049 [inline]
WARNING: CPU: 0 PID: 6757 at net/mac80211/tx.c:5049 __ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5460
Modules linked in:
CPU: 0 PID: 6757 Comm: syz.0.284 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5049 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5460
Code: f7 4c 89 ef e8 c0 6f b6 f7 45 31 ed 4c 8b bc 24 a0 00 00 00 e9 7f fe ff ff e8 1b 80 78 f7 0f 0b e9 61 f8 ff ff e8 0f 80 78 f7 <0f> 0b e9 85 fb ff ff e8 03 80 78 f7 48 c7 c7 60 6b 65 8e 4c 89 e6
RSP: 0018:ffffc90000007a18 EFLAGS: 00010246
RAX: ffffffff8a0f0b41 RBX: dffffc0000000000 RCX: ffff88802a1c1e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88802a1c1e00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88805d06e440
R13: ffff8880253b0024 R14: ffff88805d06e930 R15: ffff8880253b0000
FS:  00007f584b40e6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f584a5eb840 CR3: 000000002c018000 CR4: 00000000003506f0
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xbf/0x580 net/mac80211/tx.c:5587
 ieee80211_beacon_get include/net/mac80211.h:5440 [inline]
 mac80211_hwsim_beacon_tx+0x3bd/0x770 drivers/net/wireless/virtual/mac80211_hwsim.c:2266
 __iterate_interfaces+0x225/0x4c0 net/mac80211/util.c:766
 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:802
 mac80211_hwsim_beacon+0xbb/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2296
 __run_hrtimer kernel/time/hrtimer.c:1754 [inline]
 __hrtimer_run_queues+0x525/0xc10 kernel/time/hrtimer.c:1818
 hrtimer_run_softirq+0x177/0x290 kernel/time/hrtimer.c:1835
 handle_softirqs+0x27d/0x820 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:check_kcov_mode kernel/kcov.c:189 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x36/0x60 kernel/kcov.c:212
Code: a0 2c 7c 7e 65 8b 15 a1 2c 7c 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 24 16 00 00 00 74 2c 8b 91 00 16 00 00 <83> fa 02 75 21 48 8b 91 08 16 00 00 48 8b 32 48 8d 7e 01 8b 89 04
RSP: 0018:ffffc9001928f048 EFLAGS: 00000246
RAX: ffffffff8a7e87b3 RBX: ffffc9001928f0e0 RCX: ffff88802a1c1e00
RDX: 0000000000000000 RSI: ffffc9001928f0e0 RDI: ffffffff8bead420
RBP: ffffc9001928f190 R08: ffffc9001928f11f R09: 0000000000000000
R10: ffffc9001928f110 R11: fffff52003251e24 R12: ffffc9001928f0e0
R13: ffffc9001928f1c0 R14: ffffffff8bead420 R15: ffff888025cff240
 trace_ma_read+0x13/0x1a0 include/trace/events/maple_tree.h:46
 mt_find+0x10f/0x640 lib/maple_tree.c:6541
 find_vma+0x134/0x1b0 mm/mmap.c:1888
 gup_vma_lookup mm/gup.c:1017 [inline]
 __get_user_pages+0x386/0x1580 mm/gup.c:1135
 __get_user_pages_locked mm/gup.c:1431 [inline]
 get_dump_page+0x10c/0x200 mm/gup.c:1939
 dump_user_range+0x127/0x840 fs/coredump.c:983
 elf_core_dump+0x320e/0x37c0 fs/binfmt_elf.c:2184
 do_coredump+0x1791/0x24a0 fs/coredump.c:834
 get_signal+0x10da/0x1390 kernel/signal.c:2901
 arch_do_signal_or_restart+0xc2/0x7b0 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:213
 irqentry_exit_to_user_mode+0x9/0x30 kernel/entry/common.c:318
 exc_page_fault+0x8c/0x100 arch/x86/mm/fault.c:1519
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:608
RIP: 0033:0x7f584a59e161
Code: 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f
RSP: 002b:fffffffffffffe70 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f584a826090 RCX: 00007f584a59e159
RDX: 0000000000000000 RSI: fffffffffffffe70 RDI: 0000000000008000
RBP: 00007f584a63506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007f584a826128 R14: 00007f584a826090 R15: 00007fff7e306e88
 </TASK>
----------------
Code disassembly (best guess):
   0:	a0 2c 7c 7e 65 8b 15 	movabs 0x2ca1158b657e7c2c,%al
   7:	a1 2c
   9:	7c 7e                	jl     0x89
   b:	81 e2 00 01 ff 00    	and    $0xff0100,%edx
  11:	74 11                	je     0x24
  13:	81 fa 00 01 00 00    	cmp    $0x100,%edx
  19:	75 35                	jne    0x50
  1b:	83 b9 24 16 00 00 00 	cmpl   $0x0,0x1624(%rcx)
  22:	74 2c                	je     0x50
  24:	8b 91 00 16 00 00    	mov    0x1600(%rcx),%edx
* 2a:	83 fa 02             	cmp    $0x2,%edx <-- trapping instruction
  2d:	75 21                	jne    0x50
  2f:	48 8b 91 08 16 00 00 	mov    0x1608(%rcx),%rdx
  36:	48 8b 32             	mov    (%rdx),%rsi
  39:	48 8d 7e 01          	lea    0x1(%rsi),%rdi
  3d:	8b                   	.byte 0x8b
  3e:	89                   	.byte 0x89
  3f:	04                   	.byte 0x4