------------[ cut here ]------------ no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0 WARNING: CPU: 3 PID: 6886 at net/mac80211/rate.c:398 __rate_control_send_low+0x661/0x780 net/mac80211/rate.c:398 Modules linked in: CPU: 3 UID: 0 PID: 6886 Comm: dhcpcd-run-hook Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__rate_control_send_low+0x661/0x780 net/mac80211/rate.c:398 Code: a4 a0 d4 00 00 00 e8 9e ba b3 f6 44 8b 44 24 24 45 89 e9 89 d9 48 8b 74 24 08 44 89 e2 48 c7 c7 60 0c 09 8d e8 80 b0 72 f6 90 <0f> 0b 90 90 e9 26 fd ff ff 48 8b 3c 24 e8 3d 2a 19 f7 e9 fb fc ff RSP: 0018:ffffc900005e8870 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817a02f8 RDX: ffff8880236d4880 RSI: ffffffff817a0305 RDI: 0000000000000001 RBP: ffff888050555928 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffff R13: 0000000000000000 R14: 000000000000000c R15: ffff888050555930 FS: 00007fd29ec0dc80(0000) GS:ffff8880977b9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd29ef29feb CR3: 000000007146c000 CR4: 0000000000352ef0 Call Trace: rate_control_send_low+0x29a/0x820 net/mac80211/rate.c:423 rate_control_get_rate+0x1be/0x5e0 net/mac80211/rate.c:934 ieee80211_beacon_get_finish+0x467/0x670 net/mac80211/tx.c:5263 __ieee80211_beacon_get_ap+0x79d/0x1190 net/mac80211/tx.c:5366 ieee80211_beacon_get_ap net/mac80211/tx.c:5428 [inline] __ieee80211_beacon_get+0x14c0/0x1e40 net/mac80211/tx.c:5535 ieee80211_beacon_get_tim+0xa6/0x280 net/mac80211/tx.c:5677 ieee80211_beacon_get include/net/mac80211.h:5663 [inline] mac80211_hwsim_beacon_tx+0x4d9/0xa40 drivers/net/wireless/virtual/mac80211_hwsim.c:2319 __iterate_interfaces+0x2e2/0x650 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:797 mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2353 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x202/0xad0 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1842 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__clear_open_fd fs/file.c:346 [inline] RIP: 0010:__put_unused_fd+0xf3/0x290 fs/file.c:629 Code: 00 00 00 49 c1 ee 06 49 c1 e6 03 48 89 14 24 4a 8d 3c 32 e8 8f fc e4 ff 48 8b 14 24 4c 0f a3 22 0f 92 c0 31 ff 89 c6 88 04 24 b8 7f 7f ff 0f b6 04 24 84 c0 74 38 e8 cb 84 7f ff 4c 89 fa 48 RSP: 0018:ffffc90006577e88 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff8880272e7c00 RCX: ffffffff823b8671 RDX: ffff8880272e7d18 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 000000000000000c R08: 0000000000000000 R09: ffffed1004e5cfa3 R10: ffff8880272e7d1f R11: 0000000000000000 R12: 0000000000000000 R13: ffff8880272e7c60 R14: 0000000000000000 R15: ffff8880272e7c80 file_close_fd_locked+0x153/0x2b0 fs/file.c:706 file_close_fd+0x56/0x80 fs/file.c:856 __do_sys_close fs/open.c:1577 [inline] __se_sys_close fs/open.c:1572 [inline] __x64_sys_close+0x35/0x120 fs/open.c:1572 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd29ed5d407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffde6c246c0 EFLAGS: 00000202 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 00007fd29ec0dc80 RCX: 00007fd29ed5d407 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000c RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 000000000000000c R14: 0000560a086e8e60 R15: 0000000000000000 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 00 00 add %al,(%rax) 2: 49 c1 ee 06 shr $0x6,%r14 6: 49 c1 e6 03 shl $0x3,%r14 a: 48 89 14 24 mov %rdx,(%rsp) e: 4a 8d 3c 32 lea (%rdx,%r14,1),%rdi 12: e8 8f fc e4 ff call 0xffe4fca6 17: 48 8b 14 24 mov (%rsp),%rdx 1b: 4c 0f a3 22 bt %r12,(%rdx) 1f: 0f 92 c0 setb %al 22: 31 ff xor %edi,%edi 24: 89 c6 mov %eax,%esi 26: 88 04 24 mov %al,(%rsp) * 29: e8 b8 7f 7f ff call 0xff7f7fe6 <-- trapping instruction 2e: 0f b6 04 24 movzbl (%rsp),%eax 32: 84 c0 test %al,%al 34: 74 38 je 0x6e 36: e8 cb 84 7f ff call 0xff7f8506 3b: 4c 89 fa mov %r15,%rdx 3e: 48 rex.W