diff options
Diffstat (limited to 'libxtables/xtoptions.c')
| -rw-r--r-- | libxtables/xtoptions.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libxtables/xtoptions.c b/libxtables/xtoptions.c index 64d740e3..5964a9bf 100644 --- a/libxtables/xtoptions.c +++ b/libxtables/xtoptions.c @@ -691,6 +691,10 @@ static void xtopt_parse_plenmask(struct xt_option_call *cb) xtopt_parse_plen(cb); + /* may not be convertible to CIDR notation */ + if (cb->val.hlen == (uint8_t)-1) + goto out_put; + memset(mask, 0xFF, sizeof(union nf_inet_addr)); /* This shifting is AF-independent. */ if (cb->val.hlen == 0) { @@ -711,6 +715,7 @@ static void xtopt_parse_plenmask(struct xt_option_call *cb) mask[1] = htonl(mask[1]); mask[2] = htonl(mask[2]); mask[3] = htonl(mask[3]); +out_put: if (entry->flags & XTOPT_PUT) memcpy(XTOPT_MKPTR(cb), mask, sizeof(union nf_inet_addr)); } |