[U-Boot] [PATCH] linux_compat: fix potential NULL pointer access
Marek Szyprowski
m.szyprowski at samsung.com
Wed Oct 2 12:37:20 UTC 2019
malloc_cache_aligned() might return zero, so fix potential NULL pointer
access if __GFP_ZERO flag is set.
Signed-off-by: Marek Szyprowski <m.szyprowski at samsung.com>
---
lib/linux_compat.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/linux_compat.c b/lib/linux_compat.c
index 6373b4451e..81ea8fb126 100644
--- a/lib/linux_compat.c
+++ b/lib/linux_compat.c
@@ -20,7 +20,7 @@ void *kmalloc(size_t size, int flags)
void *p;
p = malloc_cache_aligned(size);
- if (flags & __GFP_ZERO)
+ if (p && flags & __GFP_ZERO)
memset(p, 0, size);
return p;
--
2.17.1
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