Mirrors/u-boot
1
0
Fork 0
mirror of https://source.denx.de/u-boot/u-boot.git synced 2026-06-13 15:03:58 +03:00
Code Issues Packages Projects Releases Wiki Activity

stm32mp: bsec: add check on null size in misc ops

Browse Source 
Add a protection in misc bsec ops for request with null size.

For example OP-TEE error occurs when get_eth_nb() return 0 in
setup_mac_address() for unknown part number because U-Boot read 0 OTPs.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
This commit is contained in:
Patrick Delaunay
2023-04-27 15:36:34 +02:00
committed by Patrice Chotard
parent 6bdef5b767
commit 7b802e1acf
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/mach-stm32mp/bsec.c
View File

@@ -622,7 +622,7 @@ static int stm32mp_bsec_read(struct udevice *dev, int offset,
shadow = false;
}
if ((offs % 4) || (size % 4))
if ((offs % 4) || (size % 4) || !size)
return -EINVAL;
if (IS_ENABLED(CONFIG_OPTEE) && priv->tee) {
@@ -678,7 +678,7 @@ static int stm32mp_bsec_write(struct udevice *dev, int offset,
shadow = false;
}
if ((offs % 4) || (size % 4))
if ((offs % 4) || (size % 4) || !size)
return -EINVAL;
if (IS_ENABLED(CONFIG_OPTEE) && priv->tee) {