------------[ cut here ]------------
no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0
WARNING: net/mac80211/rate.c:406 at __rate_control_send_low+0x524/0x800 net/mac80211/rate.c:401, CPU#0: kworker/u8:6/154
Modules linked in:
CPU: 0 UID: 0 PID: 154 Comm: kworker/u8:6 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: events_unbound nsim_dev_trap_report_work
RIP: 0010:__rate_control_send_low+0x5bb/0x800 net/mac80211/rate.c:401
Code: ff 4c 8b 7c 24 08 48 8b 44 24 38 0f b6 04 28 84 c0 0f 85 d3 01 00 00 41 8b 0f 4c 89 f7 48 8b 74 24 18 44 8b 44 24 2c 45 89 e9 <67> 48 0f b9 3a 4c 8b 74 24 30 e9 81 fe ff ff 44 89 f9 80 e1 07 80
RSP: 0018:ffffc90000007618 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 000000000000000c RCX: 0000000000000000
RDX: 00000000ffffffff RSI: 0000000000000000 RDI: ffffffff904513f0
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000100 R12: ffff888011ec0528
R13: 0000000000000000 R14: ffffffff904513f0 R15: ffff88805e733138
FS:  0000000000000000(0000) GS:ffff888124fff000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fea241456b8 CR3: 000000002fe64000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 rate_control_send_low+0x1a7/0x7b0 net/mac80211/rate.c:429
 rate_control_get_rate+0x20b/0x5d0 net/mac80211/rate.c:943
 ieee80211_beacon_get_finish+0x3af/0x6f0 net/mac80211/tx.c:5366
 ieee80211_beacon_get_ap+0x196a/0x2040 net/mac80211/tx.c:-1
 __ieee80211_beacon_get+0x118e/0x1880 net/mac80211/tx.c:5638
 ieee80211_beacon_get_tim+0xbd/0x2c0 net/mac80211/tx.c:5780
 ieee80211_beacon_get include/net/mac80211.h:5720 [inline]
 mac80211_hwsim_beacon_tx+0x3c5/0x870 drivers/net/wireless/virtual/mac80211_hwsim.c:2361
 __iterate_interfaces+0x2ab/0x590 net/mac80211/util.c:760
 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:796
 mac80211_hwsim_beacon+0xbb/0x180 drivers/net/wireless/virtual/mac80211_hwsim.c:2395
 __run_hrtimer kernel/time/hrtimer.c:1785 [inline]
 __hrtimer_run_queues+0x53a/0xcc0 kernel/time/hrtimer.c:1849
 hrtimer_run_softirq+0x182/0x5a0 kernel/time/hrtimer.c:1866
 handle_softirqs+0x22a/0x870 kernel/softirq.c:626
 __do_softirq kernel/softirq.c:660 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:727
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:743
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:crng_make_state+0x36f/0x600 drivers/char/random.c:394
Code: 68 88 23 8f e8 b2 91 6d 06 4c 89 fe e9 66 fe ff ff e8 15 05 76 fc e8 50 f4 6a 06 4d 85 f6 74 86 e8 06 05 76 fc fb 48 83 c4 28 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 c2 da 6d 06 cc 90 e8 ab 33 67 ff
RSP: 0018:ffffc900030178c8 EFLAGS: 00000282
RAX: ffffffff854fee4a RBX: 0000000000000000 RCX: ffff888020f4dac0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff9033cab7 R09: 1ffffffff2067956
R10: dffffc0000000000 R11: fffffbfff2067957 R12: dffffc0000000000
R13: ffff8880b8436d10 R14: 0000000000000200 R15: ffff8880b8436d60
 _get_random_bytes+0xff/0x260 drivers/char/random.c:406
 nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:846 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:876 [inline]
 nsim_dev_trap_report_work+0x69e/0xb80 drivers/net/netdevsim/dev.c:922
 process_one_work+0x949/0x1650 kernel/workqueue.c:3279
 process_scheduled_works kernel/workqueue.c:3362 [inline]
 worker_thread+0xb46/0x1140 kernel/workqueue.c:3443
 kthread+0x388/0x470 kernel/kthread.c:467
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
----------------
Code disassembly (best guess):
   0:	ff 4c 8b 7c          	decl   0x7c(%rbx,%rcx,4)
   4:	24 08                	and    $0x8,%al
   6:	48 8b 44 24 38       	mov    0x38(%rsp),%rax
   b:	0f b6 04 28          	movzbl (%rax,%rbp,1),%eax
   f:	84 c0                	test   %al,%al
  11:	0f 85 d3 01 00 00    	jne    0x1ea
  17:	41 8b 0f             	mov    (%r15),%ecx
  1a:	4c 89 f7             	mov    %r14,%rdi
  1d:	48 8b 74 24 18       	mov    0x18(%rsp),%rsi
  22:	44 8b 44 24 2c       	mov    0x2c(%rsp),%r8d
  27:	45 89 e9             	mov    %r13d,%r9d
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	4c 8b 74 24 30       	mov    0x30(%rsp),%r14
  34:	e9 81 fe ff ff       	jmp    0xfffffeba
  39:	44 89 f9             	mov    %r15d,%ecx
  3c:	80 e1 07             	and    $0x7,%cl
  3f:	80                   	.byte 0x80