------------[ cut here ]------------ no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0 WARNING: CPU: 0 PID: 26076 at net/mac80211/rate.c:380 __rate_control_send_low+0x6d9/0x800 net/mac80211/rate.c:380 Modules linked in: CPU: 0 PID: 26076 Comm: syz-executor.4 Not tainted 6.9.0-rc7-syzkaller-00023-g6d7ddd805123 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:__rate_control_send_low+0x6d9/0x800 net/mac80211/rate.c:380 Code: a4 a0 d4 00 00 00 e8 16 58 41 f7 44 8b 44 24 3c 45 89 e9 89 d9 48 8b 74 24 18 44 89 e2 48 c7 c7 60 86 6f 8c e8 28 ba 03 f7 90 <0f> 0b 90 90 e9 ff fc ff ff 48 8b 7c 24 30 e8 e4 4e 9d f7 e9 e1 fb RSP: 0018:ffffc90000007948 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81517119 RDX: ffff888028e48000 RSI: ffffffff81517126 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000005 R12: 00000000ffffffff R13: 0000000000000000 R14: 000000000000000c R15: dffffc0000000000 FS: 00007fd21f6566c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000002bafc000 CR4: 0000000000350ef0 Call Trace: rate_control_send_low+0x29a/0x820 net/mac80211/rate.c:405 rate_control_get_rate+0x1be/0x590 net/mac80211/rate.c:921 ieee80211_beacon_get_finish+0x468/0x670 net/mac80211/tx.c:5254 __ieee80211_beacon_get+0xdbe/0x16b0 net/mac80211/tx.c:5524 ieee80211_beacon_get_tim+0xa7/0x280 net/mac80211/tx.c:5593 ieee80211_beacon_get include/net/mac80211.h:5555 [inline] mac80211_hwsim_beacon_tx+0x48d/0x880 drivers/net/wireless/virtual/mac80211_hwsim.c:2296 __iterate_interfaces+0x2d5/0x580 net/mac80211/util.c:772 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:808 mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2326 __run_hrtimer kernel/time/hrtimer.c:1692 [inline] __hrtimer_run_queues+0x20f/0xcc0 kernel/time/hrtimer.c:1756 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1773 handle_softirqs+0x219/0x8f0 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu kernel/softirq.c:637 [inline] irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:810 [inline] RIP: 0010:filemap_get_entry+0x219/0x470 mm/filemap.c:1834 Code: 9d ba cd ff 4c 89 f7 e8 d5 08 ff ff 48 39 c3 0f 85 a4 01 00 00 e8 87 ba cd ff e8 02 5a 1b 09 31 ff 89 c5 89 c6 e8 57 b5 cd ff <85> ed 0f 85 ea 00 00 00 e8 6a ba cd ff e8 15 a2 b4 ff 48 c7 c7 20 RSP: 0018:ffffc90008ed7958 EFLAGS: 00000297 RAX: 0000000000000002 RBX: 0000000000000000 RCX: ffffffff81c152d9 RDX: ffff888028e48000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000000 R13: 1ffff920011daf2c R14: ffffc90008ed7980 R15: 000000000000064f shmem_get_folio_gfp+0x369/0x13e0 mm/shmem.c:1982 shmem_get_folio mm/shmem.c:2160 [inline] shmem_write_begin+0x15a/0x370 mm/shmem.c:2744 generic_perform_write+0x275/0x620 mm/filemap.c:3974 shmem_file_write_iter+0x114/0x140 mm/shmem.c:2920 call_write_iter include/linux/fs.h:2110 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x6de/0x1100 fs/read_write.c:590 ksys_write+0x12f/0x260 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd21e87caaf Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 b9 80 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 0c 81 02 00 48 RSP: 002b:00007fd21f655e80 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000001000000 RCX: 00007fd21e87caaf RDX: 0000000001000000 RSI: 00007fd214600000 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000006232 R10: 000000000000079c R11: 0000000000000293 R12: 0000000000000005 R13: 00007fd21f655f80 R14: 00007fd21f655f40 R15: 00007fd214600000 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: cd ff int $0xff 2: 4c 89 f7 mov %r14,%rdi 5: e8 d5 08 ff ff call 0xffff08df a: 48 39 c3 cmp %rax,%rbx d: 0f 85 a4 01 00 00 jne 0x1b7 13: e8 87 ba cd ff call 0xffcdba9f 18: e8 02 5a 1b 09 call 0x91b5a1f 1d: 31 ff xor %edi,%edi 1f: 89 c5 mov %eax,%ebp 21: 89 c6 mov %eax,%esi 23: e8 57 b5 cd ff call 0xffcdb57f * 28: 85 ed test %ebp,%ebp <-- trapping instruction 2a: 0f 85 ea 00 00 00 jne 0x11a 30: e8 6a ba cd ff call 0xffcdba9f 35: e8 15 a2 b4 ff call 0xffb4a24f 3a: 48 rex.W 3b: c7 .byte 0xc7 3c: c7 (bad) 3d: 20 .byte 0x20