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| H A D | wmi.c | diff 6a950755cec1a90ddaaff3e4acb5333617441c32 Fri Sep 18 09:27:32 CDT 2020 Dan Carpenter <dan.carpenter@oracle.com> ath6kl: wmi: prevent a shift wrapping bug in ath6kl_wmi_delete_pstream_cmd()
The "tsid" is a user controlled u8 which comes from debugfs. Values
more than 15 are invalid because "active_tsids" is a 16 bit variable.
If the value of "tsid" is more than 31 then that leads to a shift
wrapping bug.
Fixes: 8fffd9e5ec9e ("ath6kl: Implement support for QOS-enable and QOS-disable from userspace")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200918142732.GA909725@mwanda
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