I have encountered the oob write while attempting to modify a large FIT image with of_property. While hunting for the root cause I noticed that there is a potential memory leak in fdt_ensure_space as well. Both is fixed in this series. Signed-off-by: Stefan Kerkmann <s.kerkmann@xxxxxxxxxxxxxx> --- Changes in v2: - Review feedback from Ahmad and Sascha - Link to v1: https://lore.kernel.org/r/20240131-fix-fdt-memory-safety-v1-0-3d3a2c797eec@xxxxxxxxxxxxxx --- Stefan Kerkmann (2): of: fdt: fix memory leak in fdt_ensure_space of: fdt: fix oob writes with large fdt properties drivers/of/fdt.c | 32 +++++++++++++++++++++++++------- 1 file changed, 25 insertions(+), 7 deletions(-) --- base-commit: cecd3fbea3550532d2175bc13aa479a45e605da0 change-id: 20240131-fix-fdt-memory-safety-b06f9164d953 Best regards, -- Stefan Kerkmann <s.kerkmann@xxxxxxxxxxxxxx>
