------------[ cut here ]------------ no supported rates for sta (null) (0xffffffff, band 1) in rate_mask 0x0 with flags 0x0 WARNING: net/mac80211/rate.c:406 at __rate_control_send_low+0x524/0x800 net/mac80211/rate.c:401, CPU#0: syz.2.1885/12574 Modules linked in: CPU: 0 UID: 0 PID: 12574 Comm: syz.2.1885 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:__rate_control_send_low+0x5bb/0x800 net/mac80211/rate.c:401 Code: ff 4c 8b 7c 24 08 48 8b 44 24 38 0f b6 04 28 84 c0 0f 85 d3 01 00 00 41 8b 0f 4c 89 f7 48 8b 74 24 18 44 8b 44 24 2c 45 89 e9 <67> 48 0f b9 3a 4c 8b 74 24 30 e9 81 fe ff ff 44 89 f9 80 e1 07 80 RSP: 0018:ffffc90000007618 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000001 RDX: 00000000ffffffff RSI: 0000000000000000 RDI: ffffffff9022de30 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000100 R12: ffff88805b84b028 R13: 0000000000000000 R14: ffffffff9022de30 R15: ffff88807d18b1a0 FS: 00007f51b311a6c0(0000) GS:ffff888125460000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f090ad4da08 CR3: 000000007540c000 CR4: 00000000003526f0 Call Trace: rate_control_send_low+0x1a7/0x7b0 net/mac80211/rate.c:429 rate_control_get_rate+0x20b/0x5d0 net/mac80211/rate.c:943 ieee80211_beacon_get_finish+0x3af/0x6f0 net/mac80211/tx.c:5365 ieee80211_beacon_get_ap+0x196a/0x2040 net/mac80211/tx.c:-1 __ieee80211_beacon_get+0x118e/0x1880 net/mac80211/tx.c:5636 ieee80211_beacon_get_tim+0xbd/0x2c0 net/mac80211/tx.c:5778 ieee80211_beacon_get include/net/mac80211.h:5720 [inline] mac80211_hwsim_beacon_tx+0x3c5/0x870 drivers/net/wireless/virtual/mac80211_hwsim.c:2361 __iterate_interfaces+0x2ab/0x590 net/mac80211/util.c:760 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:796 mac80211_hwsim_beacon+0xbb/0x180 drivers/net/wireless/virtual/mac80211_hwsim.c:2395 __run_hrtimer kernel/time/hrtimer.c:1785 [inline] __hrtimer_run_queues+0x53a/0xcc0 kernel/time/hrtimer.c:1849 hrtimer_run_softirq+0x182/0x5a0 kernel/time/hrtimer.c:1866 handle_softirqs+0x22a/0x870 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:723 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:unwind_done arch/x86/include/asm/unwind.h:50 [inline] RIP: 0010:arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:24 Code: ff ff 4c 89 ff e8 15 6d 09 00 48 85 c0 74 24 48 89 df 48 89 c6 4d 89 f3 2e 2e 2e 41 ff d3 84 c0 74 11 4c 89 ff e8 45 6e 09 00 <83> bd 78 ff ff ff 00 75 cf 65 48 8b 05 14 f1 ae 11 48 3b 45 d8 75 RSP: 0018:ffffc9000fdb64e8 EFLAGS: 00000292 RAX: 00000000912ca301 RBX: ffffc9000fdb65a0 RCX: 0000000000000046 RDX: 0000000000000003 RSI: ffffffff8e16642e RDI: ffff8880578dbd00 RBP: ffffc9000fdb6570 R08: ffffc9000fdb6d50 R09: 0000000000000000 R10: ffffc9000fdb6538 R11: fffff52001fb6ca9 R12: ffff8880578dbd00 R13: 00000000000002c0 R14: ffffffff81b0bfa0 R15: ffffc9000fdb64e8 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 unpoison_slab_object mm/kasan/common.c:340 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:366 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4542 [inline] slab_alloc_node mm/slub.c:4869 [inline] kmem_cache_alloc_node_noprof+0x384/0x690 mm/slub.c:4921 kmalloc_reserve net/core/skbuff.c:613 [inline] __alloc_skb+0x27d/0x7d0 net/core/skbuff.c:713 alloc_skb include/linux/skbuff.h:1383 [inline] nlmsg_new include/net/netlink.h:1055 [inline] inet6_ifmcaddr_notify+0xfa/0x1e0 net/ipv6/mcast.c:909 __ipv6_dev_mc_inc+0x8a9/0xa50 net/ipv6/mcast.c:973 ipv6_add_dev+0xe34/0x13a0 net/ipv6/addrconf.c:471 addrconf_notify+0x771/0x1050 net/ipv6/addrconf.c:3654 notifier_call_chain+0x1be/0x400 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] register_netdevice+0x173a/0x1cf0 net/core/dev.c:11462 macvlan_common_newlink+0x127c/0x19e0 drivers/net/macvlan.c:1546 rtnl_newlink_create+0x329/0xb70 net/core/rtnetlink.c:3840 __rtnl_newlink net/core/rtnetlink.c:3957 [inline] rtnl_newlink+0x1666/0x1be0 net/core/rtnetlink.c:4072 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:6958 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2550 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x80f/0x9b0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg net/socket.c:742 [inline] ____sys_sendmsg+0x972/0x9f0 net/socket.c:2592 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2646 __sys_sendmsg net/socket.c:2678 [inline] __do_sys_sendmsg net/socket.c:2683 [inline] __se_sys_sendmsg net/socket.c:2681 [inline] __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2681 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f51b219c799 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f51b311a028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f51b2415fa0 RCX: 00007f51b219c799 RDX: 0000000000000000 RSI: 0000200000000280 RDI: 0000000000000004 RBP: 00007f51b2232c99 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f51b2416038 R14: 00007f51b2415fa0 R15: 00007ffd541c92c8 ---------------- Code disassembly (best guess): 0: ff 4c 8b 7c decl 0x7c(%rbx,%rcx,4) 4: 24 08 and $0x8,%al 6: 48 8b 44 24 38 mov 0x38(%rsp),%rax b: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax f: 84 c0 test %al,%al 11: 0f 85 d3 01 00 00 jne 0x1ea 17: 41 8b 0f mov (%r15),%ecx 1a: 4c 89 f7 mov %r14,%rdi 1d: 48 8b 74 24 18 mov 0x18(%rsp),%rsi 22: 44 8b 44 24 2c mov 0x2c(%rsp),%r8d 27: 45 89 e9 mov %r13d,%r9d * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 4c 8b 74 24 30 mov 0x30(%rsp),%r14 34: e9 81 fe ff ff jmp 0xfffffeba 39: 44 89 f9 mov %r15d,%ecx 3c: 80 e1 07 and $0x7,%cl 3f: 80 .byte 0x80