------------[ cut here ]------------ no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0xfff with flags 0x40 WARNING: CPU: 1 PID: 3561 at net/mac80211/rate.c:376 __rate_control_send_low+0x630/0x880 net/mac80211/rate.c:371 Modules linked in: CPU: 1 PID: 3561 Comm: udevd Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 RIP: 0010:__rate_control_send_low+0x630/0x880 net/mac80211/rate.c:371 Code: 0f b6 04 28 84 c0 0f 85 e9 01 00 00 48 8b 44 24 08 8b 08 48 c7 c7 e0 6a 39 8b 4c 89 f6 44 8b 44 24 14 45 89 f9 e8 50 d1 69 00 <0f> 0b e9 72 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 08 fa ff RSP: 0018:ffffc90000dd0788 EFLAGS: 00010246 RAX: 4aec5a219a688b00 RBX: 000000000000000c RCX: ffff88807da4d940 RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000 RBP: 0000000000000084 R08: ffffc90000dd02a7 R09: 1ffff920001ba054 R10: dffffc0000000000 R11: fffff520001ba055 R12: ffff88805eb207a8 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000040 FS: 00007f31a959d880(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555576e42a28 CR3: 0000000025d60000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rate_control_send_low+0x194/0x790 net/mac80211/rate.c:396 rate_control_get_rate+0x207/0x5c0 net/mac80211/rate.c:908 __ieee80211_beacon_get+0x155e/0x2000 net/mac80211/tx.c:5175 ieee80211_beacon_get_tim+0x48/0x840 net/mac80211/tx.c:5202 ieee80211_beacon_get include/net/mac80211.h:4983 [inline] mac80211_hwsim_beacon_tx+0xf4/0x920 drivers/net/wireless/mac80211_hwsim.c:1812 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0xb3/0x140 net/mac80211/util.c:829 mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x4eb/0xb70 kernel/time/hrtimer.c:1749 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766 handle_softirqs+0x339/0x830 kernel/softirq.c:576 __do_softirq kernel/softirq.c:610 [inline] invoke_softirq kernel/softirq.c:450 [inline] __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline] RIP: 0010:write_comp_data kernel/kcov.c:227 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp2+0x32/0x80 kernel/kcov.c:286 Code: 04 4c 89 7e 65 8b 15 05 4c 89 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 5b 83 b9 34 16 00 00 00 74 52 8b 91 10 16 00 00 <83> fa 03 75 47 48 8b 91 18 16 00 00 44 8b 89 14 16 00 00 49 c1 e1 RSP: 0018:ffffc90002e3f890 EFLAGS: 00000246 RAX: ffffffff81cb3534 RBX: 0000000000000001 RCX: ffff88807da4d940 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88807748ed92 R08: ffffc90002e3faef R09: 1ffff920005c7f5d R10: dffffc0000000000 R11: fffff520005c7f5e R12: 1ffff1100ee91db2 R13: ffffffff8c1cc7c0 R14: ffff88807748ed90 R15: 000000000000000a do_inode_permission fs/namei.c:457 [inline] inode_permission+0x74/0x480 fs/namei.c:526 may_lookup fs/namei.c:1701 [inline] link_path_walk+0x2ca/0xd70 fs/namei.c:2253 path_lookupat+0x9d/0x440 fs/namei.c:2462 filename_lookup+0x214/0x540 fs/namei.c:2492 user_path_at_empty+0x40/0x190 fs/namei.c:2891 user_path_at include/linux/namei.h:57 [inline] vfs_statx+0x107/0x500 fs/stat.c:221 vfs_fstatat fs/stat.c:243 [inline] __do_sys_newfstatat fs/stat.c:411 [inline] __se_sys_newfstatat fs/stat.c:405 [inline] __x64_sys_newfstatat+0x15f/0x200 fs/stat.c:405 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f31a96f5b0a Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7 RSP: 002b:00007ffcbfabcb68 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 00007ffcbfabd000 RCX: 00007f31a96f5b0a RDX: 00007ffcbfabcb70 RSI: 00007ffcbfabd000 RDI: 00000000ffffff9c RBP: 000055d5ce5de910 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcbfabcc00 R13: 00000000000000ff R14: 000055d5a3605be0 R15: 00007ffcbfabd6c0 ---------------- Code disassembly (best guess): 0: 04 4c add $0x4c,%al 2: 89 7e 65 mov %edi,0x65(%rsi) 5: 8b 15 05 4c 89 7e mov 0x7e894c05(%rip),%edx # 0x7e894c10 b: 81 e2 00 01 ff 00 and $0xff0100,%edx 11: 74 11 je 0x24 13: 81 fa 00 01 00 00 cmp $0x100,%edx 19: 75 5b jne 0x76 1b: 83 b9 34 16 00 00 00 cmpl $0x0,0x1634(%rcx) 22: 74 52 je 0x76 24: 8b 91 10 16 00 00 mov 0x1610(%rcx),%edx * 2a: 83 fa 03 cmp $0x3,%edx <-- trapping instruction 2d: 75 47 jne 0x76 2f: 48 8b 91 18 16 00 00 mov 0x1618(%rcx),%rdx 36: 44 8b 89 14 16 00 00 mov 0x1614(%rcx),%r9d 3d: 49 rex.WB 3e: c1 .byte 0xc1 3f: e1 .byte 0xe1