syzbot

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BUG: KMSAN: uninit-value in __rate_control_send_low+0xa33/0xbb0 net/mac80211/rate.c:332
CPU: 1 PID: 23197 Comm: syz-executor.0 Not tainted 5.9.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x21c/0x280 lib/dump_stack.c:118
 kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:122
 __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:219
 __rate_control_send_low+0xa33/0xbb0 net/mac80211/rate.c:332
 rate_control_send_low net/mac80211/rate.c:374 [inline]
 rate_control_get_rate+0x3b8/0x1670 net/mac80211/rate.c:887
 __ieee80211_beacon_get+0x457f/0x4df0 net/mac80211/tx.c:4906
 ieee80211_beacon_get_tim+0x109/0x800 net/mac80211/tx.c:4933
 ieee80211_beacon_get include/net/mac80211.h:4845 [inline]
 mac80211_hwsim_beacon_tx+0x1c3/0xb80 drivers/net/wireless/mac80211_hwsim.c:1676
 __iterate_interfaces net/mac80211/util.c:737 [inline]
 ieee80211_iterate_active_interfaces_atomic+0x40a/0x610 net/mac80211/util.c:773
 mac80211_hwsim_beacon+0x11d/0x2e0 drivers/net/wireless/mac80211_hwsim.c:1717
 __run_hrtimer+0x7cd/0xf00 kernel/time/hrtimer.c:1524
 __hrtimer_run_queues kernel/time/hrtimer.c:1588 [inline]
 hrtimer_run_softirq+0x3bf/0x690 kernel/time/hrtimer.c:1605
 __do_softirq+0x2ea/0x7f5 kernel/softirq.c:299
 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:23 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:50 [inline]
 do_softirq_own_stack+0x7c/0xa0 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:396 [inline]
 __irq_exit_rcu+0x226/0x270 kernel/softirq.c:426
 irq_exit_rcu+0xe/0x10 kernel/softirq.c:438
 sysvec_apic_timer_interrupt+0x118/0x140 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:599
RIP: 0010:kmsan_get_metadata+0x155/0x180 mm/kmsan/kmsan_shadow.c:201
Code: 74 3e 81 e3 ff 0f 00 00 45 84 f6 48 0f 45 c8 48 b8 00 00 00 00 00 16 00 00 48 01 c8 48 c1 e8 04 48 b9 00 d0 cc cc cc cc cc cc <48> 0f af c8 48 09 d9 48 b8 00 00 00 00 80 88 ff ff e9 fd fe ff ff
RSP: 0018:ffff88810091b010 EFLAGS: 00000206
RAX: 0000000000a9ea1b RBX: 0000000000000b00 RCX: ccccccccccccd000
RDX: 0000000012a97b00 RSI: 0000000000000040 RDI: ffffffff92a97b00
RBP: ffff88810091b028 R08: ffffea000000000f R09: ffff88812fffa000
R10: 0000000000000002 R11: ffff888087283d80 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
 kmsan_get_shadow_origin_ptr+0x6c/0xb0 mm/kmsan/kmsan_shadow.c:149
 __msan_metadata_ptr_for_load_8+0x10/0x20 mm/kmsan/kmsan_instr.c:59
 __ftrace_set_clr_event_nolock+0x70f/0xa90 kernel/trace/trace_events.c:804
 __ftrace_set_clr_event kernel/trace/trace_events.c:832 [inline]
 trace_set_clr_event+0x1c4/0x270 kernel/trace/trace_events.c:897
 bpf_get_trace_printk_proto+0x56/0x1a0 kernel/trace/bpf_trace.c:559
 bpf_base_func_proto+0x462/0x4c0 kernel/bpf/helpers.c:663
 tc_cls_act_func_proto+0xcc/0x650 net/core/filter.c:6480
 check_helper_call kernel/bpf/verifier.c:4765 [inline]
 do_check+0x12180/0x47ef0 kernel/bpf/verifier.c:9027
 do_check_common+0x11e1/0x2df0 kernel/bpf/verifier.c:10663
 do_check_main kernel/bpf/verifier.c:10729 [inline]
 bpf_check+0x18764/0x19f90 kernel/bpf/verifier.c:11182
 bpf_prog_load kernel/bpf/syscall.c:2199 [inline]
 __do_sys_bpf+0x18c24/0x1aa20 kernel/bpf/syscall.c:4178
 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4136
 __ia32_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4136
 do_syscall_32_irqs_on arch/x86/entry/common.c:80 [inline]
 __do_fast_syscall_32+0x129/0x180 arch/x86/entry/common.c:139
 do_fast_syscall_32+0x6a/0xc0 arch/x86/entry/common.c:162
 do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:205
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fea549
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f55e40cc EFLAGS: 00000296 ORIG_RAX: 0000000000000165
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000020000080
RDX: 0000000000000048 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

Local variable ----regs@__bpf_prog_run32 created at:
 __bpf_prog_run32+0x84/0x190 kernel/bpf/core.c:1692
 __bpf_prog_run32+0x84/0x190 kernel/bpf/core.c:1692
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