diff options
Diffstat (limited to 'package/libs/libubox/patches/0010-blobmsg-fix-array-out-of-bounds-GCC-10-warning.patch')
-rw-r--r-- | package/libs/libubox/patches/0010-blobmsg-fix-array-out-of-bounds-GCC-10-warning.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/package/libs/libubox/patches/0010-blobmsg-fix-array-out-of-bounds-GCC-10-warning.patch b/package/libs/libubox/patches/0010-blobmsg-fix-array-out-of-bounds-GCC-10-warning.patch new file mode 100644 index 0000000000..61f73493df --- /dev/null +++ b/package/libs/libubox/patches/0010-blobmsg-fix-array-out-of-bounds-GCC-10-warning.patch @@ -0,0 +1,39 @@ +From 44d9e85ef058fbb9981d53218cafdc451afa5535 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Petr=20=C5=A0tetiar?= <ynezz@true.cz> +Date: Wed, 25 Dec 2019 10:27:59 +0100 +Subject: blobmsg: fix array out of bounds GCC 10 warning +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Fixes following warning reported by GCC 10.0.0 20191203: + + blobmsg.c:234:2: error: 'strcpy' offset 6 from the object at 'attr' is out of the bounds of referenced subobject 'name' with type 'uint8_t[0]' {aka 'unsigned char[0]'} at offset 6 [-Werror=array-bounds] + 234 | strcpy((char *) hdr->name, (const char *)name); + | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + + In file included from blobmsg.c:16: + blobmsg.h:42:10: note: subobject 'name' declared here + 42 | uint8_t name[]; + | ^~~~ + +Reported-by: Khem Raj <raj.khem@gmail.com> +Signed-off-by: Petr Štetiar <ynezz@true.cz> +--- + blobmsg.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +--- a/blobmsg.c ++++ b/blobmsg.c +@@ -246,7 +246,10 @@ blobmsg_new(struct blob_buf *buf, int ty + attr->id_len |= be32_to_cpu(BLOB_ATTR_EXTENDED); + hdr = blob_data(attr); + hdr->namelen = cpu_to_be16(namelen); +- strcpy((char *) hdr->name, (const char *)name); ++ ++ memcpy(hdr->name, name, namelen); ++ hdr->name[namelen] = '\0'; ++ + pad_end = *data = blobmsg_data(attr); + pad_start = (char *) &hdr->name[namelen]; + if (pad_start < pad_end) |