------------[ cut here ]------------ no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0 WARNING: CPU: 1 PID: 5928 at net/mac80211/rate.c:401 __rate_control_send_low+0x667/0x780 net/mac80211/rate.c:401 Modules linked in: CPU: 1 UID: 0 PID: 5928 Comm: syz-executor 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+0x667/0x780 net/mac80211/rate.c:401 Code: a4 a0 d4 00 00 00 e8 f8 46 e6 f6 44 8b 44 24 24 45 89 e9 89 d9 48 8b 74 24 08 44 89 e2 48 c7 c7 60 15 e3 8c e8 4a 7a a4 f6 90 <0f> 0b 90 90 e9 20 fd ff ff 48 8b 3c 24 e8 47 e9 4e f7 e9 f5 fc ff RSP: 0018:ffffc900006a0870 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817b1cd8 RDX: ffff888032a3c900 RSI: ffffffff817b1ce5 RDI: 0000000000000001 RBP: ffff88803a11c8e8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff R13: 0000000000000000 R14: 000000000000000c R15: ffff88803a11c8f0 FS: 000055556b314500(0000) GS:ffff8880d6b05000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0df8d156c0 CR3: 000000004e824000 CR4: 0000000000352ef0 Call Trace: rate_control_send_low+0x52a/0x810 net/mac80211/rate.c:429 rate_control_get_rate+0x1be/0x5e0 net/mac80211/rate.c:943 ieee80211_beacon_get_finish+0x467/0x670 net/mac80211/tx.c:5360 __ieee80211_beacon_get_ap+0x79d/0x1190 net/mac80211/tx.c:5463 ieee80211_beacon_get_ap net/mac80211/tx.c:5525 [inline] __ieee80211_beacon_get+0x14c0/0x1e40 net/mac80211/tx.c:5632 ieee80211_beacon_get_tim+0xa6/0x280 net/mac80211/tx.c:5774 ieee80211_beacon_get include/net/mac80211.h:5667 [inline] mac80211_hwsim_beacon_tx+0x4dc/0xa40 drivers/net/wireless/virtual/mac80211_hwsim.c:2361 __iterate_interfaces+0x2e5/0x650 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:797 mac80211_hwsim_beacon+0x105/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2395 __run_hrtimer kernel/time/hrtimer.c:1777 [inline] __hrtimer_run_queues+0x202/0xad0 kernel/time/hrtimer.c:1841 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1858 handle_softirqs+0x219/0x8e0 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:723 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1052 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:arch_stack_walk+0x4/0x100 arch/x86/kernel/stacktrace.c:17 Code: ff ff ff e8 9e 2b 5a 00 89 e8 e6 83 e9 11 ff ff ff 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 <55> 48 89 e5 41 57 49 89 d7 41 56 49 89 ce b9 0c 00 00 00 41 55 49 RSP: 0018:ffffc900016af5f0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: fffff520002d5ebf RCX: 0000000000000000 RDX: ffff888032a3c900 RSI: ffffc900016af618 RDI: ffffffff81a7e2a0 RBP: 0000000000000cc0 R08: ffffffff821a2dd0 R09: 0000000000000000 R10: ffff88802490fb40 R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000cc0 R14: 0000000000000cc0 R15: ffff88802490fa40 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:56 kasan_save_track+0x14/0x30 mm/kasan/common.c:77 unpoison_slab_object mm/kasan/common.c:342 [inline] __kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:368 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] kmem_cache_alloc_noprof+0x250/0x6e0 mm/slub.c:5295 vm_area_dup+0x27/0x8d0 mm/vma_init.c:123 dup_mmap+0x86f/0x2280 mm/mmap.c:1780 dup_mm kernel/fork.c:1489 [inline] copy_mm kernel/fork.c:1541 [inline] copy_process+0x3f0c/0x76a0 kernel/fork.c:2181 kernel_clone+0xfc/0x930 kernel/fork.c:2609 __do_sys_clone+0xce/0x120 kernel/fork.c:2750 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0df7f85e93 Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 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 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 RSP: 002b:00007fff3eca7478 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0df7f85e93 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: 000055556b3147d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000000927c0 R14: 0000000000019dc1 R15: 00007fff3eca7610 ---------------- Code disassembly (best guess), 3 bytes skipped: 0: e8 9e 2b 5a 00 call 0x5a2ba3 5: 89 e8 mov %ebp,%eax 7: e6 83 out %al,$0x83 9: e9 11 ff ff ff jmp 0xffffff1f e: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: 90 nop 23: 0f 1f 40 d6 nopl -0x2a(%rax) * 27: 55 push %rbp <-- trapping instruction 28: 48 89 e5 mov %rsp,%rbp 2b: 41 57 push %r15 2d: 49 89 d7 mov %rdx,%r15 30: 41 56 push %r14 32: 49 89 ce mov %rcx,%r14 35: b9 0c 00 00 00 mov $0xc,%ecx 3a: 41 55 push %r13 3c: 49 rex.WB