[v6.6] WARNING in ath6kl_bmi_get_target_info

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: a5df3a702b2c Linux 6.6.96
git tree: linux-6.6.y
console output: https://syzkaller.appspot.com/x/log.txt?x=10ee00f0580000
kernel config: https://syzkaller.appspot.com/x/.config?x=2632deddafa957e8
dashboard link: https://syzkaller.appspot.com/bug?extid=f1326369b3efef2515be
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7

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

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/9ba5b19f9f4d/disk-a5df3a70.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/2cd779015729/vmlinux-a5df3a70.xz
kernel image: https://storage.googleapis.com/syzbot-assets/b56fc39e5cb8/bzImage-a5df3a70.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+f13263...@syzkaller.appspotmail.com

usb 3-1: config 0 descriptor??
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5796 at drivers/net/wireless/ath/ath6kl/bmi.c:90 ath6kl_bmi_get_target_info+0x498/0x5e0 drivers/net/wireless/ath/ath6kl/bmi.c:90
Modules linked in:
CPU: 1 PID: 5796 Comm: kworker/1:3 Not tainted 6.6.96-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: usb_hub_wq hub_event
RIP: 0010:ath6kl_bmi_get_target_info+0x498/0x5e0 drivers/net/wireless/ath/ath6kl/bmi.c:90
Code: 04 20 84 c0 0f 85 36 01 00 00 48 8b 44 24 10 8b 30 48 c7 c7 60 76 3e 8b 44 89 ea e8 22 ec 70 04 e9 e1 fd ff ff e8 08 d4 8d fb <0f> 0b 41 bd ea ff ff ff e9 cf fd ff ff e8 f6 d3 8d fb 45 31 ed e9
RSP: 0018:ffffc9000479ec40 EFLAGS: 00010283
RAX: ffffffff85f7c258 RBX: 1ffff920008f3d90 RCX: 0000000000100000
RDX: ffffc90017a0a000 RSI: 000000000002d91e RDI: 000000000002d91f
RBP: ffffc9000479ed10 R08: ffffffff90da5597 R09: 1ffffffff21b4ab2
R10: dffffc0000000000 R11: fffffbfff21b4ab3 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff888062cb0e20 R15: 1ffff1100c5961ca
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f57c693e7e8 CR3: 0000000068e2e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
ath6kl_core_init+0x202/0x10c0 drivers/net/wireless/ath/ath6kl/core.c:101
ath6kl_usb_probe+0x14be/0x15b0 drivers/net/wireless/ath/ath6kl/usb.c:1168
usb_probe_interface+0x5a4/0xb00 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x25b/0xb40 drivers/base/dd.c:658
__driver_probe_device+0x18c/0x330 drivers/base/dd.c:800
driver_probe_device+0x4f/0x420 drivers/base/dd.c:830
__device_attach_driver+0x2ca/0x520 drivers/base/dd.c:958
bus_for_each_drv+0x24b/0x2d0 drivers/base/bus.c:459
__device_attach+0x2b5/0x400 drivers/base/dd.c:1030
bus_probe_device+0x180/0x260 drivers/base/bus.c:534
device_add+0x85b/0xc20 drivers/base/core.c:3683
usb_set_configuration+0x1a79/0x20c0 drivers/usb/core/message.c:2207
usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:238
usb_probe_device+0x13d/0x280 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x25b/0xb40 drivers/base/dd.c:658
__driver_probe_device+0x18c/0x330 drivers/base/dd.c:800
driver_probe_device+0x4f/0x420 drivers/base/dd.c:830
__device_attach_driver+0x2ca/0x520 drivers/base/dd.c:958
bus_for_each_drv+0x24b/0x2d0 drivers/base/bus.c:459
__device_attach+0x2b5/0x400 drivers/base/dd.c:1030
bus_probe_device+0x180/0x260 drivers/base/bus.c:534
device_add+0x85b/0xc20 drivers/base/core.c:3683
usb_new_device+0xa31/0x1630 drivers/usb/core/hub.c:2632
hub_port_connect drivers/usb/core/hub.c:5501 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5641 [inline]
port_event drivers/usb/core/hub.c:5801 [inline]
hub_event+0x2957/0x49c0 drivers/usb/core/hub.c:5883
process_one_work kernel/workqueue.c:2634 [inline]
process_scheduled_works+0xa45/0x15b0 kernel/workqueue.c:2711
worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792
kthread+0x2fa/0x390 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
</TASK>


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[syzbot]

Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.