From: Gen Zhang <blackgod016574@xxxxxxxxx>
[ Upstream commit efa9ace68e487ddd29c2b4d6dd23242158f1f607 ]
In dlpar_parse_cc_property(), 'prop->name' is allocated by kstrdup().
kstrdup() may return NULL, so it should be checked and handle error.
And prop should be freed if 'prop->name' is NULL.
Signed-off-by: Gen Zhang <blackgod016574@xxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/powerpc/platforms/pseries/dlpar.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index a8efed3b46916..551ba5b35df9d 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -55,6 +55,10 @@ static struct property *dlpar_parse_cc_property(struct cc_workarea *ccwa)
name = (char *)ccwa + be32_to_cpu(ccwa->name_offset);
prop->name = kstrdup(name, GFP_KERNEL);
+ if (!prop->name) {
+ dlpar_free_cc_property(prop);
+ return NULL;
+ }
prop->length = be32_to_cpu(ccwa->prop_length);
value = (char *)ccwa + be32_to_cpu(ccwa->prop_offset);
--
2.20.1
