Files
linux/drivers/accel
Andrzej Kacprowski d9faef5644 accel/ivpu: Fix signed integer truncation in IPC receive
Fix potential buffer overflow where firmware-supplied data_size is cast
to signed int before being used in min_t(). Large unsigned values
(>= 0x80000000) become negative, causing unsigned wraparound and
oversized memcpy operations that can overflow the stack buffer.

Change min_t(int, ...) to min() as both values are unsigned and can be
handled by min() without explicit cast.

Fixes: 3b434a3445 ("accel/ivpu: Use threaded IRQ to handle JOB done messages")
Cc: stable@vger.kernel.org # v6.12+
Signed-off-by: Andrzej Kacprowski <andrzej.kacprowski@linux.intel.com>
Reviewed-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Link: https://patch.msgid.link/20260601161643.229342-1-andrzej.kacprowski@linux.intel.com
2026-06-09 07:52:50 +02:00
..
2025-10-24 15:07:39 -05:00
2025-10-24 15:07:39 -05:00