bridge0: port 4(dummy0) entered learning state
------------[ cut here ]------------
no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0
WARNING: net/mac80211/rate.c:404 at __rate_control_send_low+0x60c/0x8a0 net/mac80211/rate.c:399, CPU#0: syz-executor/31340
Modules linked in:
CPU: 0 UID: 0 PID: 31340 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__rate_control_send_low+0x638/0x8a0 net/mac80211/rate.c:399
Code: 7c 24 10 48 8b 44 24 28 42 0f b6 04 28 84 c0 0f 85 c4 01 00 00 41 8b 0f 4c 89 f7 48 8b 74 24 18 44 8b 44 24 24 44 8b 4c 24 0c <67> 48 0f b9 3a e9 46 fe ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f
RSP: 0018:ffffc900000076d8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 000000000000000c RCX: 0000000000000000
RDX: 00000000ffffffff RSI: 0000000000000000 RDI: ffffffff908c3210
RBP: ffff88805f8e0f40 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000100 R12: ffff88807cb8d168
R13: dffffc0000000000 R14: ffffffff908c3210 R15: ffff88805f8e3258
FS: 000055557b151500(0000) GS:ffff888124cd2000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000130 CR3: 000000007781a000 CR4: 00000000003526f0
Call Trace:
rate_control_send_low+0x1a7/0x7b0 net/mac80211/rate.c:427
rate_control_get_rate+0x20b/0x5d0 net/mac80211/rate.c:935
ieee80211_beacon_get_finish+0x385/0x6c0 net/mac80211/tx.c:5556
ieee80211_beacon_get_ap+0x19d5/0x20c0 net/mac80211/tx.c:-1
__ieee80211_beacon_get+0x1250/0x1920 net/mac80211/tx.c:5827
ieee80211_beacon_get_tim+0xbd/0x2c0 net/mac80211/tx.c:5969
ieee80211_beacon_get include/net/mac80211.h:5902 [inline]
mac80211_hwsim_beacon_tx+0x378/0x820 drivers/net/wireless/virtual/mac80211_hwsim_main.c:2500
__iterate_interfaces+0x2af/0x5a0 net/mac80211/util.c:775
ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:811
mac80211_hwsim_beacon+0xaf/0x240 drivers/net/wireless/virtual/mac80211_hwsim_main.c:2536
__run_hrtimer kernel/time/hrtimer.c:2067 [inline]
__hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2124
hrtimer_run_softirq+0x1e3/0x2e0 kernel/time/hrtimer.c:2141
handle_softirqs+0x226/0x860 kernel/softirq.c:645
__do_softirq kernel/softirq.c:679 [inline]
invoke_softirq kernel/softirq.c:519 [inline]
__irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758
irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:97 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:115 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:140 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:172 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:191 [inline]
RIP: 0010:kasan_check_range+0x8a/0x2c0 mm/kasan/generic.c:200
Code: 4d 89 c1 49 c1 e9 03 48 bb 01 00 00 00 00 fc ff df 4d 8d 34 19 4d 89 f4 4d 29 dc 49 83 fc 10 7f 29 4d 85 e4 0f 84 3d 01 00 00 <4c> 89 cb 48 f7 d3 4c 01 fb 41 80 3b 00 0f 85 9e 01 00 00 49 ff c3
RSP: 0018:ffffc90003e7f2c8 EFLAGS: 00000202
RAX: ffffffff821ee201 RBX: dffffc0000000001 RCX: ffffffff821ee241
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffea0001915774
RBP: ffffc90003e7f590 R08: ffffea0001915777 R09: 1ffffd4000322aee
R10: dffffc0000000000 R11: fffff94000322aee R12: 0000000000000001
R13: ffffea0001915740 R14: fffff94000322aef R15: 1ffffd4000322aee
instrument_atomic_read_write include/linux/instrumented.h:112 [inline]
atomic_inc include/linux/atomic/atomic-instrumented.h:435 [inline]
page_ref_inc include/linux/page_ref.h:171 [inline]
folio_ref_inc include/linux/page_ref.h:178 [inline]
folio_get include/linux/mm.h:2122 [inline]
copy_present_ptes mm/memory.c:1256 [inline]
copy_pte_range mm/memory.c:1402 [inline]
copy_pmd_range+0xa31/0x5c10 mm/memory.c:1490
copy_pud_range mm/memory.c:1527 [inline]
copy_p4d_range mm/memory.c:1551 [inline]
copy_page_range+0xc82/0x1290 mm/memory.c:1637
dup_mmap+0xf17/0x1dc0 mm/mmap.c:1819
dup_mm kernel/fork.c:1543 [inline]
copy_mm+0x11a/0x480 kernel/fork.c:1595
copy_process+0x1e75/0x43e0 kernel/fork.c:2307
kernel_clone+0x2d7/0x940 kernel/fork.c:2766
__do_sys_clone kernel/fork.c:2908 [inline]
__se_sys_clone kernel/fork.c:2892 [inline]
__x64_sys_clone+0x1b6/0x230 kernel/fork.c:2892
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd4887c6bd2
Code: 89 e7 e8 71 8b f7 ff 45 31 c0 31 d2 31 f6 64 48 8b 04 25 10 00 00 00 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 66 89 c5 85 c0 75 3b 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffe1970a730 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffe1970a730 RCX: 00007fd4887c6bd2
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffe1970a8bc R08: 0000000000000000 R09: 0000000000000001
R10: 000055557b1517d0 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000927c0 R14: 0000000000140110 R15: 00007ffe1970a910
----------------
Code disassembly (best guess):
0: 7c 24 jl 0x26
2: 10 48 8b adc %cl,-0x75(%rax)
5: 44 24 28 rex.R and $0x28,%al
8: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax
d: 84 c0 test %al,%al
f: 0f 85 c4 01 00 00 jne 0x1d9
15: 41 8b 0f mov (%r15),%ecx
18: 4c 89 f7 mov %r14,%rdi
1b: 48 8b 74 24 18 mov 0x18(%rsp),%rsi
20: 44 8b 44 24 24 mov 0x24(%rsp),%r8d
25: 44 8b 4c 24 0c mov 0xc(%rsp),%r9d
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: e9 46 fe ff ff jmp 0xfffffe7a
34: 44 89 f1 mov %r14d,%ecx
37: 80 e1 07 and $0x7,%cl
3a: 80 c1 03 add $0x3,%cl
3d: 38 c1 cmp %al,%cl
3f: 0f .byte 0xf