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| author | Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com> | 2013-06-26 13:37:02 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2013-06-27 19:11:11 +0200 |
| commit | 783a972f6acd680bed92fac36c5388d15620e754 (patch) | |
| tree | 1a95b955f5f83f84711c9dec39cee2ac6d251308 /src/expr/payload.c | |
| parent | 34caf0add23aab075c2bbe1a99927c081014cadd (diff) | |
expr: xml: registers must be <= NFT_REG_MAX
With this patch, all expressions validate that registers are <= NFT_REG_MAX.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src/expr/payload.c')
| -rw-r--r-- | src/expr/payload.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/expr/payload.c b/src/expr/payload.c index 28c52ca..dc42918 100644 --- a/src/expr/payload.c +++ b/src/expr/payload.c @@ -200,6 +200,11 @@ nft_rule_expr_payload_xml_parse(struct nft_rule_expr *e, char *xml) return -1; } + if (tmp > NFT_REG_MAX) { + mxmlDelete(tree); + return -1; + } + payload->dreg = (uint32_t)tmp; e->flags |= (1 << NFT_EXPR_PAYLOAD_DREG); } |