------------[ cut here ]------------ no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0 WARNING: CPU: 1 PID: 261 at net/mac80211/rate.c:375 __rate_control_send_low+0x4b6/0x680 net/mac80211/rate.c:375 Modules linked in: CPU: 1 PID: 261 Comm: syz-fuzzer Not tainted 5.10.213 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__rate_control_send_low+0x4b6/0x680 net/mac80211/rate.c:375 Code: 14 48 89 44 24 10 e8 69 9e 86 fd 44 8b 44 24 24 45 89 e9 44 89 e1 48 8b 74 24 10 44 89 f2 48 c7 c7 c0 de 95 84 e8 05 b5 1d 00 <0f> 0b e9 29 fe ff ff e8 3e 9e 86 fd 48 8b 44 24 08 48 8d 78 7f 48 RSP: 0018:ffff88806cf09000 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff88804d96dca8 RCX: 0000000000000000 RDX: ffff88800e7d4ec0 RSI: ffffffff8129de83 RDI: ffffed100d9e11f2 RBP: ffff88802026b1e8 R08: 0000000000000001 R09: ffff88806cf37b0f R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 00000000ffffffff R15: 0000000000000000 FS: 000000c00009c090(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d226000 CR3: 000000000cef4000 CR4: 0000000000350ee0 Call Trace: rate_control_send_low+0x1f2/0x600 net/mac80211/rate.c:400 rate_control_get_rate+0x18b/0x510 net/mac80211/rate.c:913 ieee80211_tx_h_rate_ctrl+0x9ed/0x1630 net/mac80211/tx.c:754 invoke_tx_handlers_early+0xaf3/0x2570 net/mac80211/tx.c:1789 ieee80211_tx+0x246/0x410 net/mac80211/tx.c:1931 ieee80211_xmit+0x220/0x2a0 net/mac80211/tx.c:2031 __ieee80211_subif_start_xmit+0x752/0xca0 net/mac80211/tx.c:4062 ieee80211_subif_start_xmit+0xef/0xf70 net/mac80211/tx.c:4198 __netdev_start_xmit include/linux/netdevice.h:4818 [inline] netdev_start_xmit include/linux/netdevice.h:4832 [inline] xmit_one net/core/dev.c:3600 [inline] dev_hard_start_xmit+0x1cb/0x6f0 net/core/dev.c:3616 sch_direct_xmit+0x25f/0x790 net/sched/sch_generic.c:336 qdisc_restart net/sched/sch_generic.c:401 [inline] __qdisc_run+0x4aa/0x1570 net/sched/sch_generic.c:409 qdisc_run include/net/pkt_sched.h:127 [inline] qdisc_run include/net/pkt_sched.h:124 [inline] __dev_xmit_skb net/core/dev.c:3792 [inline] __dev_queue_xmit+0xd99/0x2710 net/core/dev.c:4148 neigh_resolve_output net/core/neighbour.c:1509 [inline] neigh_resolve_output+0x4da/0x7f0 net/core/neighbour.c:1489 neigh_output include/net/neighbour.h:509 [inline] ip6_finish_output2+0xaaf/0x1fe0 net/ipv6/ip6_output.c:145 __ip6_finish_output.part.0+0x4f7/0xbc0 net/ipv6/ip6_output.c:216 __ip6_finish_output include/linux/skbuff.h:972 [inline] ip6_finish_output net/ipv6/ip6_output.c:226 [inline] NF_HOOK_COND include/linux/netfilter.h:285 [inline] ip6_output+0x3aa/0x7e0 net/ipv6/ip6_output.c:249 dst_output include/net/dst.h:436 [inline] NF_HOOK include/linux/netfilter.h:296 [inline] NF_HOOK include/linux/netfilter.h:290 [inline] mld_sendpack+0x8f3/0xe40 net/ipv6/mcast.c:1676 mld_send_cr net/ipv6/mcast.c:1972 [inline] mld_ifc_timer_expire+0x60a/0xf10 net/ipv6/mcast.c:2471 call_timer_fn+0x182/0x4a0 kernel/time/timer.c:1414 expire_timers kernel/time/timer.c:1459 [inline] __run_timers.part.0+0x667/0x9a0 kernel/time/timer.c:1753 __run_timers kernel/time/timer.c:1731 [inline] run_timer_softirq+0x80/0x120 kernel/time/timer.c:1766 __do_softirq+0x1b8/0x7c9 kernel/softirq.c:298 asm_call_irq_on_stack+0x12/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x114/0x1b0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1094 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:_raw_spin_unlock_irq+0x27/0x30 kernel/locking/spinlock.c:200 Code: 44 00 00 55 48 8b 74 24 08 48 89 fd 48 8d 7f 18 e8 6e b5 40 fd 48 89 ef e8 36 6f 41 fd e8 81 9b 60 fd fb 65 ff 0d 49 e9 1b 7c <5d> e9 c3 b9 39 00 0f 1f 00 55 48 89 fd 48 83 c7 18 53 48 89 f3 48 RSP: 0018:ffff88800feffcb8 EFLAGS: 00000286 RAX: 00000000003086e5 RBX: 0000000000466290 RCX: 1ffffffff0ace0c1 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83e685ef RBP: ffff88801afb9280 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801afb95d8 R13: ffff88801afb9540 R14: 0000000000000017 R15: ffff88801afb95d8 spin_unlock_irq include/linux/spinlock.h:404 [inline] get_signal+0x17b1/0x22e0 kernel/signal.c:2754 arch_do_signal_or_restart+0x2b7/0x1990 arch/x86/kernel/signal.c:805 handle_signal_work kernel/entry/common.c:145 [inline] exit_to_user_mode_loop kernel/entry/common.c:169 [inline] exit_to_user_mode_prepare+0x10f/0x190 kernel/entry/common.c:199 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:287 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0033:0x463dff Code: bb 00 00 00 48 81 f9 80 00 00 00 0f 86 4f 01 00 00 e9 d1 02 00 00 48 85 c9 74 4e 48 83 c0 10 66 a9 f0 0f 74 2c f3 0f 6f 48 f0 <48> 01 c9 48 8d 05 97 a8 a4 00 66 0f db 0c c8 66 0f ef c8 66 0f 38 RSP: 002b:000000c005851918 EFLAGS: 00000206 RAX: 000000000099470b RBX: 0000000000463d70 RCX: 0000000000000006 RDX: 000000c005851930 RSI: 000000c005851998 RDI: 000000c005851b98 RBP: 000000c005851978 R08: 00007f47db032dbf R09: 0000000000203003 R10: 0000000000000002 R11: 0000000000000011 R12: 00000000000000f1 R13: 0000000000000000 R14: 0000000000e5dacd R15: 0000000000000000 irq event stamp: 3181626 hardirqs last enabled at (3181636): [] console_unlock+0x92d/0xb40 kernel/printk/printk.c:2561 hardirqs last disabled at (3181645): [] console_unlock+0x839/0xb40 kernel/printk/printk.c:2476 softirqs last enabled at (3180248): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (3180263): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace 5ffc68bf2a9086b4 ]--- mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=10794 comm=syz-executor.6 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium ---------------- Code disassembly (best guess): 0: 44 00 00 add %r8b,(%rax) 3: 55 push %rbp 4: 48 8b 74 24 08 mov 0x8(%rsp),%rsi 9: 48 89 fd mov %rdi,%rbp c: 48 8d 7f 18 lea 0x18(%rdi),%rdi 10: e8 6e b5 40 fd callq 0xfd40b583 15: 48 89 ef mov %rbp,%rdi 18: e8 36 6f 41 fd callq 0xfd416f53 1d: e8 81 9b 60 fd callq 0xfd609ba3 22: fb sti 23: 65 ff 0d 49 e9 1b 7c decl %gs:0x7c1be949(%rip) # 0x7c1be973 * 2a: 5d pop %rbp <-- trapping instruction 2b: e9 c3 b9 39 00 jmpq 0x39b9f3 30: 0f 1f 00 nopl (%rax) 33: 55 push %rbp 34: 48 89 fd mov %rdi,%rbp 37: 48 83 c7 18 add $0x18,%rdi 3b: 53 push %rbx 3c: 48 89 f3 mov %rsi,%rbx 3f: 48 rex.W