software node: Correct a OOB check in software_node_get_reference_args()

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software_node_get_reference_args() wants to get @index-th element, so
the property value requires at least '(index + 1) * sizeof(*ref)' bytes
but that can not be guaranteed by current OOB check, and may cause OOB
for malformed property.

Fix by using as OOB check '((index + 1) * sizeof(*ref) > prop->length)'.

Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250414-fix_swnode-v2-1-9c9e6ae11eab@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Zijun Hu 2025-04-14 19:36:52 +08:00 • committed by Greg Kroah-Hartman

parent f407a8a28a

commit 31e4e12e0e

1 changed files with 1 additions and 1 deletions

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drivers/base/swnode.c

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