netdev - [syzbot] [wireless?] WARNING in ieee80211_tx_h_rate

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Message-ID: <68385415.a70a0220.29d4a0.082e.GAE@google.com>
Date: Thu, 29 May 2025 05:33:25 -0700
From: syzbot <syzbot+0d516b33238bd97ee864@...kaller.appspotmail.com>
To: johannes@...solutions.net, linux-kernel@...r.kernel.org, 
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: [syzbot] [wireless?] WARNING in ieee80211_tx_h_rate_ctrl

Hello,

syzbot found the following issue on:

HEAD commit:    5cdb2c77c4c3 Merge tag 'net-6.15-rc8' of git://git.kernel...
git tree:       net
console output: https://syzkaller.appspot.com/x/log.txt?x=14784df4580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=9fd1c9848687d742
dashboard link: https://syzkaller.appspot.com/bug?extid=0d516b33238bd97ee864
compiler:       Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/d90a868e19ee/disk-5cdb2c77.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/3c5ff2a5a972/vmlinux-5cdb2c77.xz
kernel image: https://storage.googleapis.com/syzbot-assets/f6a0db04ca42/bzImage-5cdb2c77.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+0d516b33238bd97ee864@...kaller.appspotmail.com

wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
------------[ cut here ]------------
wlan1: Dropped data frame as no usable bitrate found while scanning and associated. Target station: 08:02:11:00:00:00 on 5 GHz band
WARNING: CPU: 1 PID: 1111 at net/mac80211/tx.c:756 ieee80211_tx_h_rate_ctrl+0xc87/0x1780 net/mac80211/tx.c:749
Modules linked in:
CPU: 1 UID: 0 PID: 1111 Comm: kworker/u8:6 Not tainted 6.15.0-rc7-syzkaller-00082-g5cdb2c77c4c3 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:ieee80211_tx_h_rate_ctrl+0xc87/0x1780 net/mac80211/tx.c:749
Code: 31 f6 83 e6 07 41 0f 95 c6 31 ff e8 03 26 ea f6 43 8d 0c 76 83 c1 02 48 c7 c7 60 8b 8c 8c 48 89 de 4c 89 fa e8 3a 7e ae f6 90 <0f> 0b 90 90 41 bf 01 00 00 00 e9 eb 02 00 00 e8 95 21 ea f6 e9 6a
RSP: 0018:ffffc90003c9f460 EFLAGS: 00010246
RAX: caae12da654acc00 RBX: ffff888078a69738 RCX: ffff888026951e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc90003c9f5d0 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bba984 R12: dffffc0000000000
R13: ffffc90003c9f788 R14: 0000000000000001 R15: ffff888059534d44
FS:  0000000000000000(0000) GS:ffff8881261c2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557d9f3588 CR3: 0000000031484000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 invoke_tx_handlers_late+0xb6/0x1820 net/mac80211/tx.c:1850
 ieee80211_tx+0x2ac/0x420 net/mac80211/tx.c:1971
 __ieee80211_tx_skb_tid_band+0x50f/0x680 net/mac80211/tx.c:6107
 ieee80211_tx_skb_tid_band net/mac80211/ieee80211_i.h:2338 [inline]
 ieee80211_send_scan_probe_req net/mac80211/scan.c:655 [inline]
 ieee80211_scan_state_send_probe+0x59a/0xa10 net/mac80211/scan.c:683
 ieee80211_scan_work+0x5b1/0x1ce0 net/mac80211/scan.c:1143
 cfg80211_wiphy_work+0x2dc/0x460 net/wireless/core.c:435
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xadb/0x17a0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>


---
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