------------[ cut here ]------------ no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0 WARNING: CPU: 0 PID: 10616 at net/mac80211/rate.c:403 __rate_control_send_low+0x5df/0x820 net/mac80211/rate.c:398 Modules linked in: CPU: 0 UID: 0 PID: 10616 Comm: dhcpcd-run-hook Not tainted 6.16.0-rc3-syzkaller-00121-g2def09ead4ad #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:__rate_control_send_low+0x5df/0x820 net/mac80211/rate.c:398 Code: 38 0f b6 04 28 84 c0 0f 85 d7 01 00 00 41 8b 0f 48 c7 c7 80 7b ae 8c 48 8b 74 24 18 44 8b 44 24 2c 45 89 e9 e8 02 1b a6 f6 90 <0f> 0b 90 90 e9 73 fe ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c RSP: 0018:ffffc90000007758 EFLAGS: 00010246 RAX: 80a1586c6daa9000 RBX: 000000000000000c RCX: ffff888021778000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002 RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfaa04 R12: ffff888024773168 R13: 0000000000000000 R14: ffff88804ae00e40 R15: ffff88804ae030d8 FS: 00007fc23cbf1c80(0000) GS:ffff888125c50000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc23cf0dfeb CR3: 0000000061e3e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rate_control_send_low+0x194/0x7a0 net/mac80211/rate.c:423 rate_control_get_rate+0x20b/0x5d0 net/mac80211/rate.c:934 ieee80211_beacon_get_finish+0x38c/0x6b0 net/mac80211/tx.c:5252 __ieee80211_beacon_get+0x1033/0x17b0 net/mac80211/tx.c:-1 ieee80211_beacon_get_tim+0xb4/0x2b0 net/mac80211/tx.c:5593 ieee80211_beacon_get include/net/mac80211.h:5638 [inline] mac80211_hwsim_beacon_tx+0x3ce/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2319 __iterate_interfaces+0x2a8/0x590 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:797 mac80211_hwsim_beacon+0xbb/0x1c0 drivers/net/wireless/virtual/mac80211_hwsim.c:2353 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x529/0xc60 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1842 handle_softirqs+0x286/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:rcu_is_watching+0x67/0xb0 kernel/rcu/tree.c:746 Code: 89 f7 e8 cc be 7c 00 48 c7 c3 58 2f 9e 92 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 75 34 8b 03 65 ff 0d a9 ec f5 10 <74> 11 83 e0 04 c1 e8 02 5b 41 5e 41 5f e9 07 7f c2 09 cc e8 11 83 RSP: 0018:ffffc90002e977f8 EFLAGS: 00000286 RAX: 000000000006afa4 RBX: ffff8880b8632f58 RCX: 80a1586c6daa9000 RDX: 0000000000000000 RSI: ffffffff8be28d20 RDI: ffffffff8be28ce0 RBP: ffffffff81728af5 R08: 0000000000000000 R09: 0000000000000000 R10: ffffc90002e979d8 R11: ffffffff81ace6a0 R12: 0000000000000002 R13: ffffffff8e13ee60 R14: ffffffff8dba7c60 R15: dffffc0000000000 trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x5f/0x360 kernel/locking/lockdep.c:5834 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] class_rcu_constructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0xc2/0x2390 arch/x86/kernel/unwind_orc.c:479 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x62/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2381 [inline] slab_free mm/slub.c:4643 [inline] kmem_cache_free+0x18f/0x400 mm/slub.c:4745 file_free fs/file_table.c:68 [inline] __fput+0x6c2/0xa70 fs/file_table.c:478 task_work_run+0x1d1/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xec/0x110 kernel/entry/common.c:114 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline] do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc23cdab477 Code: 73 01 c3 48 8b 0d 81 f9 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 21 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 51 f9 0d 00 f7 d8 64 89 02 b8 RSP: 002b:00007ffc20a58988 EFLAGS: 00000202 ORIG_RAX: 0000000000000021 RAX: 0000000000000002 RBX: 000000000000000d RCX: 00007fc23cdab477 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000000000000000d RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 000000000000000d R14: 0000556bcff8de60 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 89 f7 mov %esi,%edi 2: e8 cc be 7c 00 call 0x7cbed3 7: 48 c7 c3 58 2f 9e 92 mov $0xffffffff929e2f58,%rbx e: 49 03 1e add (%r14),%rbx 11: 48 89 d8 mov %rbx,%rax 14: 48 c1 e8 03 shr $0x3,%rax 18: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax 1d: 84 c0 test %al,%al 1f: 75 34 jne 0x55 21: 8b 03 mov (%rbx),%eax 23: 65 ff 0d a9 ec f5 10 decl %gs:0x10f5eca9(%rip) # 0x10f5ecd3 * 2a: 74 11 je 0x3d <-- trapping instruction 2c: 83 e0 04 and $0x4,%eax 2f: c1 e8 02 shr $0x2,%eax 32: 5b pop %rbx 33: 41 5e pop %r14 35: 41 5f pop %r15 37: e9 07 7f c2 09 jmp 0x9c27f43 3c: cc int3 3d: e8 .byte 0xe8 3e: 11 .byte 0x11 3f: 83 .byte 0x83