------------[ cut here ]------------ no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0xfff with flags 0x20 WARNING: CPU: 0 PID: 17471 at net/mac80211/rate.c:385 __rate_control_send_low+0x635/0x880 net/mac80211/rate.c:380 Modules linked in: CPU: 0 PID: 17471 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:__rate_control_send_low+0x635/0x880 net/mac80211/rate.c:380 Code: 30 42 0f b6 04 28 84 c0 0f 85 e6 01 00 00 41 8b 0e 48 c7 c7 00 40 df 8b 48 8b 74 24 10 44 8b 44 24 1c 45 89 e1 e8 cb d6 52 f7 <0f> 0b e9 78 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 03 fa ff RSP: 0018:ffffc90000007540 EFLAGS: 00010246 RAX: e92a4ac1ac58ef00 RBX: 000000000000000c RCX: ffff8880245b5a00 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002 RBP: 0000000000000084 R08: ffffc90000007147 R09: 1ffff92000000e28 R10: dffffc0000000000 R11: fffff52000000e29 R12: 0000000000000020 R13: dffffc0000000000 R14: ffff88807cd433b8 R15: ffff88802a7418e8 FS: 000055555b7ce500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d6198b8168 CR3: 0000000075916000 CR4: 00000000003506f0 Call Trace: rate_control_send_low+0x194/0x790 net/mac80211/rate.c:405 rate_control_get_rate+0x20b/0x5d0 net/mac80211/rate.c:921 ieee80211_beacon_get_finish+0x3a2/0x6e0 net/mac80211/tx.c:5230 ieee80211_beacon_get_ap+0x15a7/0x1b20 net/mac80211/tx.c:5333 __ieee80211_beacon_get+0x10eb/0x1600 net/mac80211/tx.c:5429 ieee80211_beacon_get_tim+0xbf/0x580 net/mac80211/tx.c:5571 ieee80211_beacon_get include/net/mac80211.h:5440 [inline] mac80211_hwsim_beacon_tx+0x3c7/0x780 drivers/net/wireless/virtual/mac80211_hwsim.c:2265 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:766 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:802 mac80211_hwsim_beacon+0xbb/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2295 __run_hrtimer kernel/time/hrtimer.c:1754 [inline] __hrtimer_run_queues+0x520/0xc40 kernel/time/hrtimer.c:1818 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1835 handle_softirqs+0x280/0x820 kernel/softirq.c:578 __do_softirq kernel/softirq.c:612 [inline] invoke_softirq kernel/softirq.c:452 [inline] __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline] RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:127 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:178 [inline] RIP: 0010:kasan_check_range+0x89/0x290 mm/kasan/generic.c:187 Code: 00 fc ff df 4d 8d 34 19 4d 89 f4 4d 29 dc 49 83 fc 10 7f 29 4d 85 e4 0f 84 3d 01 00 00 4c 89 cb 48 f7 d3 4c 01 fb 41 80 3b 00 <0f> 85 8d 01 00 00 49 ff c3 48 ff c3 75 ee e9 1d 01 00 00 44 89 dd RSP: 0018:ffffc900037d7388 EFLAGS: 00000246 RAX: ffffffff81e89e01 RBX: ffffffffffffffff RCX: ffffffff81e89f03 RDX: 0000000000000001 RSI: 0000000000000080 RDI: ffffc900037d7420 RBP: 0000000000000000 R08: ffffc900037d749f R09: 1ffff920006fae93 R10: dffffc0000000000 R11: fffff520006fae93 R12: 0000000000000010 R13: dffffc0000000000 R14: fffff520006fae94 R15: 1ffff920006fae84 __asan_memset+0x22/0x40 mm/kasan/shadow.c:84 save_stack+0xb3/0x230 mm/page_owner.c:112 __reset_page_owner+0x4e/0x190 mm/page_owner.c:149 reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1181 [inline] free_unref_page_prepare+0x7b2/0x8c0 mm/page_alloc.c:2365 free_unref_page_list+0xbe/0x860 mm/page_alloc.c:2504 release_pages+0x1f7a/0x2200 mm/swap.c:1022 __folio_batch_release+0x71/0xe0 mm/swap.c:1042 folio_batch_release include/linux/pagevec.h:83 [inline] shmem_undo_range+0x630/0x1b20 mm/shmem.c:1026 shmem_truncate_range mm/shmem.c:1135 [inline] shmem_evict_inode+0x245/0x9e0 mm/shmem.c:1264 evict+0x4ca/0x8d0 fs/inode.c:705 __dentry_kill+0x431/0x650 fs/dcache.c:611 dentry_kill+0xb8/0x290 fs/dcache.c:-1 dput+0xfe/0x1e0 fs/dcache.c:918 __fput+0x5e5/0x970 fs/file_table.c:392 task_work_run+0x1d4/0x260 kernel/task_work.c:245 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302 do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fdbfeb9e097 Code: a2 c7 05 5c 06 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffce527e378 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007fdbfec321ca RCX: 00007fdbfeb9e097 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffce527e430 RBP: 00007ffce527e430 R08: 00007ffce527f430 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce527f4c0 R13: 00007fdbfec321ca R14: 0000000000157a06 R15: 00007ffce527f500 ---------------- Code disassembly (best guess): 0: 00 fc add %bh,%ah 2: ff lcall (bad) 3: df 4d 8d fisttps -0x73(%rbp) 6: 34 19 xor $0x19,%al 8: 4d 89 f4 mov %r14,%r12 b: 4d 29 dc sub %r11,%r12 e: 49 83 fc 10 cmp $0x10,%r12 12: 7f 29 jg 0x3d 14: 4d 85 e4 test %r12,%r12 17: 0f 84 3d 01 00 00 je 0x15a 1d: 4c 89 cb mov %r9,%rbx 20: 48 f7 d3 not %rbx 23: 4c 01 fb add %r15,%rbx 26: 41 80 3b 00 cmpb $0x0,(%r11) * 2a: 0f 85 8d 01 00 00 jne 0x1bd <-- trapping instruction 30: 49 ff c3 inc %r11 33: 48 ff c3 inc %rbx 36: 75 ee jne 0x26 38: e9 1d 01 00 00 jmp 0x15a 3d: 44 89 dd mov %r11d,%ebp