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authorStefano Babic <sbabic@denx.de>2013-09-13 12:04:54 +0200
committerStefano Babic <sbabic@denx.de>2013-09-13 12:10:07 +0200
commitc4a7ece02046f647019cc0aaddf530833a8db29c (patch)
tree06342cd9b8cc41b95442a992fb38a1bc8671b05c /lib/lzo/lzo1x_decompress.c
parentb5e7f1bc4b899ea34e838d5d60b3e6f8e479d0a9 (diff)
parent8386ca8bea7a6a8469c3b6a99313afb642e6cbeb (diff)
downloadu-boot-c4a7ece02046f647019cc0aaddf530833a8db29c.zip
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Merge branch 'master' of git://git.denx.de/u-boot-arm
Conflicts: MAINTAINERS boards.cfg Signed-off-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'lib/lzo/lzo1x_decompress.c')
-rw-r--r--lib/lzo/lzo1x_decompress.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/lzo/lzo1x_decompress.c b/lib/lzo/lzo1x_decompress.c
index e6ff708..35f3793 100644
--- a/lib/lzo/lzo1x_decompress.c
+++ b/lib/lzo/lzo1x_decompress.c
@@ -68,13 +68,14 @@ int lzop_decompress(const unsigned char *src, size_t src_len,
unsigned char *start = dst;
const unsigned char *send = src + src_len;
u32 slen, dlen;
- size_t tmp;
+ size_t tmp, remaining;
int r;
src = parse_header(src);
if (!src)
return LZO_E_ERROR;
+ remaining = *dst_len;
while (src < send) {
/* read uncompressed block size */
dlen = get_unaligned_be32(src);
@@ -93,6 +94,10 @@ int lzop_decompress(const unsigned char *src, size_t src_len,
if (slen <= 0 || slen > dlen)
return LZO_E_ERROR;
+ /* abort if buffer ran out of room */
+ if (dlen > remaining)
+ return LZO_E_OUTPUT_OVERRUN;
+
/* decompress */
tmp = dlen;
r = lzo1x_decompress_safe((u8 *) src, slen, dst, &tmp);
@@ -105,6 +110,7 @@ int lzop_decompress(const unsigned char *src, size_t src_len,
src += slen;
dst += dlen;
+ remaining -= dlen;
}
return LZO_E_INPUT_OVERRUN;