> Jeongjun Park <aha310510@xxxxxxxxx> wrote:
>
>
>
>> Kalle Valo <kvalo@xxxxxxxxxx> wrote:
>>
>> Jeongjun Park <aha310510@xxxxxxxxx> wrote:
>>
>>> I found the following bug in my fuzzer:
>>>
>>> UBSAN: array-index-out-of-bounds in drivers/net/wireless/ath/ath9k/htc_hst.c:26:51
>>> index 255 is out of range for type 'htc_endpoint [22]'
>>> CPU: 0 UID: 0 PID: 8 Comm: kworker/0:0 Not tainted 6.11.0-rc6-dirty #14
>>> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
>>> Workqueue: events request_firmware_work_func
>>> Call Trace:
>>> <TASK>
>>> dump_stack_lvl+0x180/0x1b0
>>> __ubsan_handle_out_of_bounds+0xd4/0x130
>>> htc_issue_send.constprop.0+0x20c/0x230
>>> ? _raw_spin_unlock_irqrestore+0x3c/0x70
>>> ath9k_wmi_cmd+0x41d/0x610
>>> ? mark_held_locks+0x9f/0xe0
>>> ...
>>>
>>> Since this bug has been confirmed to be caused by insufficient verification
>>> of conn_rsp_epid, I think it would be appropriate to add a range check for
>>> conn_rsp_epid to htc_connect_service() to prevent the bug from occurring.
>>>
>>> Fixes: fb9987d0f748 ("ath9k_htc: Support for AR9271 chipset.")
>>> Signed-off-by: Jeongjun Park <aha310510@xxxxxxxxx>
>>> Acked-by: Toke Høiland-Jørgensen <toke@xxxxxxx>
>>> Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx>
>>
>> Patch applied to ath-next branch of ath.git, thanks.
>>
>
Cc: <stable@xxxxxxxxxxxxxxx>
> I think this patch should be applied to the next rc version immediately
> to fix the oob vulnerability as soon as possible, and also to the
> stable version.
>
> Regards,
>
> Jeongjun Park
>
>> 8619593634cb wifi: ath9k: add range check for conn_rsp_epid in htc_connect_service()
>>
>> --
>> https://patchwork.kernel.org/project/linux-wireless/patch/20240909103855.68006-1-aha310510@xxxxxxxxx/
>>
>> https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
>> https://docs.kernel.org/process/submitting-patches.html
>>
