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imx8mn: buffer overflow in low_drive_gpu_freq()

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Avoid a buffer overflow if assigned-clock-rates has less than two elements.

Fixes: 98bcdf1635 ("imx8mn: Add low drive mode support for DDR4/LPDDR4 EVK")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Heinrich Schuchardt 2023-04-18 01:37:21 +02:00 • committed by Stefano Babic
parent b016fcf723
commit 76ce66408d
1 changed files with 2 additions and 0 deletions
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arch/arm/mach-imx/imx8m/soc.c
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@ -914,6 +914,8 @@ static int low_drive_gpu_freq(void *blob)
if (cnt != 7)
printf("Warning: %s, assigned-clock-rates count %d\n", nodes_path_8mn[0], cnt);
if (cnt < 2)
return -1;
assignedclks[cnt - 1] = 200000000;
assignedclks[cnt - 2] = 200000000;