------------[ cut here ]------------
no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0xfff with flags 0x40
WARNING: CPU: 0 PID: 18911 at net/mac80211/rate.c:385 __rate_control_send_low+0x635/0x880 net/mac80211/rate.c:380
Modules linked in:
CPU: 0 PID: 18911 Comm: syz.0.4246 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__rate_control_send_low+0x635/0x880 net/mac80211/rate.c:380
Code: 30 42 0f b6 04 28 84 c0 0f 85 e6 01 00 00 41 8b 0e 48 c7 c7 20 f3 de 8b 48 8b 74 24 10 44 8b 44 24 1c 45 89 e1 e8 fb 0f 55 f7 <0f> 0b e9 78 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 03 fa ff
RSP: 0018:ffffc90000007540 EFLAGS: 00010246
RAX: ed38509d7d006a00 RBX: 000000000000000c RCX: ffff888018aa0000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000084 R08: ffffc90000007147 R09: 1ffff92000000e28
R10: dffffc0000000000 R11: fffff52000000e29 R12: 0000000000000040
R13: dffffc0000000000 R14: ffff88805eb4b358 R15: ffff888067a09168
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f62ad385980 CR3: 0000000067b4e000 CR4: 00000000003506f0
Call Trace:
 <IRQ>
 rate_control_send_low+0x194/0x790 net/mac80211/rate.c:405
 rate_control_get_rate+0x20b/0x5d0 net/mac80211/rate.c:921
 ieee80211_beacon_get_finish+0x3a2/0x6e0 net/mac80211/tx.c:5228
 ieee80211_beacon_get_ap+0x15a7/0x1b20 net/mac80211/tx.c:5331
 __ieee80211_beacon_get+0x10eb/0x1600 net/mac80211/tx.c:5427
 ieee80211_beacon_get_tim+0xbf/0x580 net/mac80211/tx.c:5569
 ieee80211_beacon_get include/net/mac80211.h:5440 [inline]
 mac80211_hwsim_beacon_tx+0x3c7/0x780 drivers/net/wireless/virtual/mac80211_hwsim.c:2265
 __iterate_interfaces+0x243/0x500 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:2295
 __run_hrtimer kernel/time/hrtimer.c:1750 [inline]
 __hrtimer_run_queues+0x520/0xc40 kernel/time/hrtimer.c:1814
 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1831
 handle_softirqs+0x280/0x820 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:__sanitizer_cov_trace_const_cmp8+0x7e/0x80 kernel/kcov.c:322
Code: c1 e1 05 4c 8d 51 28 4d 39 ca 77 1e 49 ff c0 4c 89 02 48 c7 44 0a 08 07 00 00 00 48 89 7c 0a 10 48 89 74 0a 18 48 89 44 0a 20 <c3> 90 f3 0f 1e fa 48 8b 06 48 8b 4e 08 48 83 c1 f8 48 c1 c1 3d 48
RSP: 0018:ffffc900057b7438 EFLAGS: 00000293
RAX: ffffffff81ea475c RBX: 0000000000000001 RCX: ffff888018aa0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffffd40003d4731 R08: dffffc0000000000 R09: 1ffffffff22386a0
R10: dffffc0000000000 R11: fffffbfff22386a1 R12: ffffea0001ea3988
R13: 0000000000000000 R14: ffff88801bcb80b0 R15: ffffea0001ea3980
 _compound_head include/linux/page-flags.h:248 [inline]
 PageSlab include/linux/page-flags.h:501 [inline]
 page_table_check_clear+0x8c/0x6a0 mm/page_table_check.c:79
 ptep_get_and_clear_full arch/x86/include/asm/jump_label.h:-1 [inline]
 zap_pte_range mm/memory.c:1429 [inline]
 zap_pmd_range mm/memory.c:1571 [inline]
 zap_pud_range mm/memory.c:1600 [inline]
 zap_p4d_range mm/memory.c:1621 [inline]
 unmap_page_range+0x1ad9/0x3000 mm/memory.c:1642
 unmap_vmas+0x286/0x3f0 mm/memory.c:1732
 exit_mmap+0x238/0xb90 mm/mmap.c:3302
 __mmput+0x118/0x3c0 kernel/fork.c:1355
 exit_mm+0x1f2/0x2c0 kernel/exit.c:569
 do_exit+0x8dd/0x2460 kernel/exit.c:870
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1024
 get_signal+0x12fc/0x13f0 kernel/signal.c:2902
 arch_do_signal_or_restart+0xc2/0x800 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
 do_syscall_64+0x61/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f62ad39c819
Code: Unable to access opcode bytes at 0x7f62ad39c7ef.
RSP: 002b:00007f62ae22a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f62ad615fa8 RCX: 00007f62ad39c819
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f62ad615fa8
RBP: 00007f62ad615fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f62ad616038 R14: 00007fff4a568510 R15: 00007fff4a5685f8
 </TASK>
----------------
Code disassembly (best guess):
   0:	c1 e1 05             	shl    $0x5,%ecx
   3:	4c 8d 51 28          	lea    0x28(%rcx),%r10
   7:	4d 39 ca             	cmp    %r9,%r10
   a:	77 1e                	ja     0x2a
   c:	49 ff c0             	inc    %r8
   f:	4c 89 02             	mov    %r8,(%rdx)
  12:	48 c7 44 0a 08 07 00 	movq   $0x7,0x8(%rdx,%rcx,1)
  19:	00 00
  1b:	48 89 7c 0a 10       	mov    %rdi,0x10(%rdx,%rcx,1)
  20:	48 89 74 0a 18       	mov    %rsi,0x18(%rdx,%rcx,1)
  25:	48 89 44 0a 20       	mov    %rax,0x20(%rdx,%rcx,1)
* 2a:	c3                   	ret <-- trapping instruction
  2b:	90                   	nop
  2c:	f3 0f 1e fa          	endbr64
  30:	48 8b 06             	mov    (%rsi),%rax
  33:	48 8b 4e 08          	mov    0x8(%rsi),%rcx
  37:	48 83 c1 f8          	add    $0xfffffffffffffff8,%rcx
  3b:	48 c1 c1 3d          	rol    $0x3d,%rcx
  3f:	48                   	rex.W