------------[ cut here ]------------ no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0xfff with flags 0x40 WARNING: CPU: 0 PID: 11951 at net/mac80211/rate.c:376 __rate_control_send_low+0x630/0x880 net/mac80211/rate.c:371 Modules linked in: CPU: 0 PID: 11951 Comm: syz.2.2006 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 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 20 6b 39 8b 4c 89 f6 44 8b 44 24 14 45 89 f9 e8 d0 ce 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:ffffc90000007788 EFLAGS: 00010246 RAX: 2ac25d37ce6d3e00 RBX: 000000000000000c RCX: ffff888021535940 RDX: 0000000000000100 RSI: 0000000080000101 RDI: 0000000000000000 RBP: 0000000000000084 R08: ffffc900000072a7 R09: 1ffff92000000e54 R10: dffffc0000000000 R11: fffff52000000e55 R12: ffff88807a04b8e8 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000040 FS: 00007f8c046026c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8c06616180 CR3: 0000000079855000 CR4: 00000000003506f0 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_cmp4+0x32/0x80 kernel/kcov.c:293 Code: 14 4a 89 7e 65 8b 15 15 4a 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:ffffc90003887968 EFLAGS: 00000246 RAX: ffffffff81acd988 RBX: ffff8880753d3560 RCX: ffff888021535940 RDX: 0000000000000002 RSI: 0000000000000002 RDI: 0000000000000000 RBP: 0000000000001052 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52000710f1c R12: 000ffffffffff000 R13: 1ffff1100b76b575 R14: ffffea000142c940 R15: 8000000050b25027 follow_page_pte+0x798/0xc20 mm/gup.c:601 follow_pmd_mask mm/gup.c:-1 [inline] follow_pud_mask mm/gup.c:788 [inline] follow_p4d_mask mm/gup.c:814 [inline] follow_page_mask+0xa6e/0x12d0 mm/gup.c:873 __get_user_pages+0xdc2/0x11e0 mm/gup.c:1195 populate_vma_page_range+0x213/0x290 mm/gup.c:1529 __mm_populate+0x275/0x3b0 mm/gup.c:1638 mm_populate include/linux/mm.h:2646 [inline] vm_mmap_pgoff+0x212/0x2d0 mm/util.c:556 ksys_mmap_pgoff+0x140/0x790 mm/mmap.c:1635 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: 0033:0x7f8c063a8629 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:00007f8c04602028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f8c06621fa0 RCX: 00007f8c063a8629 RDX: 000000000300000b RSI: 0000000000b36000 RDI: 0000200000000000 RBP: 00007f8c0643eb39 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8c06622038 R14: 00007f8c06621fa0 R15: 00007ffeca183be8 ---------------- Code disassembly (best guess): 0: 14 4a adc $0x4a,%al 2: 89 7e 65 mov %edi,0x65(%rsi) 5: 8b 15 15 4a 89 7e mov 0x7e894a15(%rip),%edx # 0x7e894a20 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