------------[ cut here ]------------
no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0xfff with flags 0x40
WARNING: CPU: 0 PID: 2104 at net/mac80211/rate.c:385 __rate_control_send_low+0x635/0x880 net/mac80211/rate.c:380
Modules linked in:
CPU: 0 PID: 2104 Comm: kworker/u4:6 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: events_unbound nsim_dev_trap_report_work
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 80 9c be 8b 48 8b 74 24 10 44 8b 44 24 1c 45 89 e1 e8 eb 14 6a 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:ffffc90000007560 EFLAGS: 00010246
RAX: 5ce8a58fdcd3ed00 RBX: 000000000000000c RCX: ffff8880264cda00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000084 R08: ffffc90000007167 R09: 1ffff92000000e2c
R10: dffffc0000000000 R11: fffff52000000e2d R12: 0000000000000040
R13: dffffc0000000000 R14: ffff888021153358 R15: ffff888076372028
FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3ee495 CR3: 000000002ce58000 CR4: 00000000003506f0
Call Trace:
rate_control_send_low+0x194/0x790 net/mac80211/rate.c:405
rate_control_get_rate+0x20b/0x5c0 net/mac80211/rate.c:921
ieee80211_beacon_get_finish+0x38d/0x6b0 net/mac80211/tx.c:5228
ieee80211_beacon_get_ap+0x1429/0x1970 net/mac80211/tx.c:5331
__ieee80211_beacon_get+0x10eb/0x1600 net/mac80211/tx.c:5427
ieee80211_beacon_get_tim+0xb8/0x560 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:1755 [inline]
__hrtimer_run_queues+0x51e/0xc40 kernel/time/hrtimer.c:1819
hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1836
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+0xc7/0x190 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
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:-1 [inline]
RIP: 0010:unwind_next_frame+0x1cb2/0x2970 arch/x86/kernel/unwind_orc.c:665
Code: 00 49 8b 5c 24 08 4d 8d 7c 24 10 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 77 16 a2 00 49 8b 07 4c 39 f3 0f 96 c1 <4c> 39 f0 0f 97 c2 84 d1 74 3c 49 8d 4e 08 48 39 d9 0f 96 c2 48 39
RSP: 0018:ffffc90005517598 EFLAGS: 00000293
RAX: ffffc90005518000 RBX: ffffc90005510000 RCX: 0000000000000001
RDX: ffff8880264cda00 RSI: 0000000000000001 RDI: ffffc90005517670
RBP: ffffc90005517f30 R08: ffff8880264cda00 R09: 0000000000000003
R10: 0000000000000004 R11: 0000000000000000 R12: ffffc90005517668
R13: dffffc0000000000 R14: ffffc90005517f58 R15: ffffc90005517678
arch_stack_walk+0x144/0x190 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4e/0x70 mm/kasan/common.c:52
kasan_save_free_info+0x2e/0x50 mm/kasan/generic.c:522
____kasan_slab_free+0x126/0x1e0 mm/kasan/common.c:236
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1806 [inline]
slab_free_freelist_hook+0x130/0x1b0 mm/slub.c:1832
slab_free mm/slub.c:3816 [inline]
kmem_cache_free+0xf8/0x280 mm/slub.c:3838
nsim_dev_trap_report drivers/net/netdevsim/dev.c:821 [inline]
nsim_dev_trap_report_work+0x76f/0xb00 drivers/net/netdevsim/dev.c:851
process_one_work kernel/workqueue.c:2634 [inline]
process_scheduled_works+0xa45/0x15b0 kernel/workqueue.c:2711
worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792
kthread+0x2fa/0x390 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
----------------
Code disassembly (best guess):
0: 00 49 8b add %cl,-0x75(%rcx)
3: 5c pop %rsp
4: 24 08 and $0x8,%al
6: 4d 8d 7c 24 10 lea 0x10(%r12),%r15
b: 4c 89 f8 mov %r15,%rax
e: 48 c1 e8 03 shr $0x3,%rax
12: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1)
17: 74 08 je 0x21
19: 4c 89 ff mov %r15,%rdi
1c: e8 77 16 a2 00 call 0xa21698
21: 49 8b 07 mov (%r15),%rax
24: 4c 39 f3 cmp %r14,%rbx
27: 0f 96 c1 setbe %cl
* 2a: 4c 39 f0 cmp %r14,%rax <-- trapping instruction
2d: 0f 97 c2 seta %dl
30: 84 d1 test %dl,%cl
32: 74 3c je 0x70
34: 49 8d 4e 08 lea 0x8(%r14),%rcx
38: 48 39 d9 cmp %rbx,%rcx
3b: 0f 96 c2 setbe %dl
3e: 48 rex.W
3f: 39 .byte 0x39