Re: [PATCH 1/1] HID: core: Fix OOB read in hid_get_report for numbered reports

[Greg Kroah-Hartman]

On Tue, Jun 16, 2026 at 11:26:56AM +0000, Lee Jones wrote:
> When a caller passes a size of 0 to hid_report_raw_event() for a
> numbered report, the function originally called hid_get_report() before
> performing any size validation.
> 
> Inside hid_get_report(), if the report is numbered (report_enum->numbered
> is true), it unconditionally dereferences data[0] to extract the report ID.
> With a size of 0, this results in an out-of-bounds read or kernel panic.
> 
> Fix this by moving the numbered report size validation check before the
> call to hid_get_report(), ensuring that size is at least 1 before
> dereferencing the data pointer.
> 
> Fixes: 2c85c61d1332 ("HID: pass the buffer size to hid_report_raw_event")
> Signed-off-by: Lee Jones <lee@xxxxxxxxxx>
> ---
>  drivers/hid/hid-core.c | 7 +++++++
>  1 file changed, 7 insertions(+)

Hi,

This is the friendly patch-bot of Greg Kroah-Hartman.  You have sent him
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