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In hast_proto_recv_data() check that the size of the data to be

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received does not exceed the buffer size.

Approved by:	pjd (mentor)
MFC after:	1 week
This commit is contained in:
Mikolaj Golub 2011-04-10 15:21:46 +00:00
parent 47f1eb5c4b
commit 1d521b1cbd
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=220522
1 changed files with 5 additions and 2 deletions
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7
sbin/hastd/hast_proto.c
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@ -189,9 +189,12 @@ hast_proto_recv_data(const struct hast_resource *res, struct proto_conn *conn,
dptr = data; dptr = data;
dsize = nv_get_uint32(nv, "size"); dsize = nv_get_uint32(nv, "size");
if (dsize == 0) if (dsize > size) {
errno = EINVAL;
goto end;
} else if (dsize == 0) {
(void)nv_set_error(nv, 0); (void)nv_set_error(nv, 0);
else { } else {
if (proto_recv(conn, data, dsize) < 0) if (proto_recv(conn, data, dsize) < 0)
goto end; goto end;
for (ii = sizeof(pipeline) / sizeof(pipeline[0]); ii > 0; for (ii = sizeof(pipeline) / sizeof(pipeline[0]); ii > 0;