diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2024-02-08 13:20:43 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2024-02-09 16:56:04 +0100 |
| commit | 8a34cca265a290a0b23cec27d5258bc432cef3d3 (patch) | |
| tree | 451d370b0c0dfba12ea04b813c255cdfa6653725 /src/netlink_linearize.c | |
| parent | 9fe58952c45a1643dc7df1a0b1f5d88e8ae1a978 (diff) | |
netlink_linearize: add assertion to catch for buggy byteorder
Add assertion to catch buggy bytecode where unary expression is present
with 1-byte selectors, where no byteorder conversion is required.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src/netlink_linearize.c')
| -rw-r--r-- | src/netlink_linearize.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/netlink_linearize.c b/src/netlink_linearize.c index 50dbd36c..6204d8fd 100644 --- a/src/netlink_linearize.c +++ b/src/netlink_linearize.c @@ -797,6 +797,8 @@ static void netlink_gen_unary(struct netlink_linearize_ctx *ctx, struct nftnl_expr *nle; int byte_size; + assert(div_round_up(expr->arg->len, BITS_PER_BYTE) != 1); + if ((expr->arg->len % 64) == 0) byte_size = 8; else if ((expr->arg->len % 32) == 0) |