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-rw-r--r--security/selinux/ss/ebitmap.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/security/selinux/ss/ebitmap.c b/security/selinux/ss/ebitmap.c
index cfed1d30fa6a..d539346ab3a2 100644
--- a/security/selinux/ss/ebitmap.c
+++ b/security/selinux/ss/ebitmap.c
@@ -93,11 +93,15 @@ int ebitmap_export(const struct ebitmap *src,
size_t bitmap_byte;
unsigned char bitmask;
+ if (src->highbit == 0) {
+ *dst = NULL;
+ *dst_len = 0;
+ return 0;
+ }
+
bitmap_len = src->highbit / 8;
if (src->highbit % 7)
bitmap_len += 1;
- if (bitmap_len == 0)
- return -EINVAL;
bitmap = kzalloc((bitmap_len & ~(sizeof(MAPTYPE) - 1)) +
sizeof(MAPTYPE),
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