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| author |   Jason A. Donenfeld <Jason@zx2c4.com> | 2018-05-03 19:07:55 +0200 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2018-05-03 19:08:20 +0200 |
| commit | f8a990763a1439732b8ea4f2a39f7cee6633949a (patch) | |
| tree | 318f0d793c27d158845e6c8c58bc663f84d30e80 /contrib | |
| parent | keygen-html: add zip file example (diff) | |
| download | wireguard-tools-f8a990763a1439732b8ea4f2a39f7cee6633949a.tar.xz wireguard-tools-f8a990763a1439732b8ea4f2a39f7cee6633949a.zip | |
embeddable-wg-library: zero attribute padding
See: http://git.netfilter.org/libmnl/commit/?id=37c876b55a2c00424ccda5a300ab5fdec1d88b22
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'contrib')
| -rw-r--r-- | contrib/embeddable-wg-library/wireguard.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/contrib/embeddable-wg-library/wireguard.c b/contrib/embeddable-wg-library/wireguard.c index a713567..16ddd9a 100644 --- a/contrib/embeddable-wg-library/wireguard.c +++ b/contrib/embeddable-wg-library/wireguard.c @@ -358,11 +358,15 @@ static void mnl_attr_put(struct nlmsghdr *nlh, uint16_t type, size_t len, { struct nlattr *attr = mnl_nlmsg_get_payload_tail(nlh); uint16_t payload_len = MNL_ALIGN(sizeof(struct nlattr)) + len; + int pad; attr->nla_type = type; attr->nla_len = payload_len; memcpy(mnl_attr_get_payload(attr), data, len); nlh->nlmsg_len += MNL_ALIGN(payload_len); + pad = MNL_ALIGN(len) - len; + if (pad > 0) + memset(mnl_attr_get_payload(attr) + len, 0, pad); } static void mnl_attr_put_u16(struct nlmsghdr *nlh, uint16_t type, uint16_t data) |