Before: BUG: Value export of 512 bytes would overflownft: src/netlink.c:474: netlink_gen_prefix: Assertion `0' failed. After: 66: Error: Object mapping data should be a value, not prefix synproxy name ip saddr map { 192.168.1.0/24 : "v*" } Signed-off-by: Florian Westphal <fw@xxxxxxxxx> --- src/evaluate.c | 5 +++++ tests/shell/testcases/bogons/nft-f/objmap_to_prefix_assert | 6 ++++++ 2 files changed, 11 insertions(+) create mode 100644 tests/shell/testcases/bogons/nft-f/objmap_to_prefix_assert diff --git a/src/evaluate.c b/src/evaluate.c index 1da6a5711cbf..f7671cc6954c 100644 --- a/src/evaluate.c +++ b/src/evaluate.c @@ -2179,6 +2179,11 @@ static int expr_evaluate_mapping(struct eval_ctx *ctx, struct expr **expr) return expr_error(ctx->msgs, mapping->right, "Value must be a singleton"); + if (set_is_objmap(set->flags) && mapping->right->etype != EXPR_VALUE) + return expr_error(ctx->msgs, mapping->right, + "Object mapping data should be a value, not %s", + expr_name(mapping->right)); + mapping->flags |= EXPR_F_CONSTANT; return 0; } diff --git a/tests/shell/testcases/bogons/nft-f/objmap_to_prefix_assert b/tests/shell/testcases/bogons/nft-f/objmap_to_prefix_assert new file mode 100644 index 000000000000..d880a377cacd --- /dev/null +++ b/tests/shell/testcases/bogons/nft-f/objmap_to_prefix_assert @@ -0,0 +1,6 @@ +table t { + chain y { + type filter hook input priority filter; policy accept; + synproxy name ip saddr map { 192.168.1.0/24 : "x*" } + } +} -- 2.41.0