From 128c6b6cbffc8203e13ea5712a8aa65d2ed82e4e Mon Sep 17 00:00:00 2001 From: Paul Moore Date: Wed, 28 Feb 2007 15:14:21 -0500 Subject: NetLabel: convert a BUG_ON in the CIPSO code to a runtime check This patch changes a BUG_ON in the CIPSO code to a runtime check. It should also increase the readability of the code as it replaces an unexplained constant with a well defined macro. Signed-off-by: Paul Moore Signed-off-by: James Morris --- net/ipv4/cipso_ipv4.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c index d466bd5186a1..6afc398c6a22 100644 --- a/net/ipv4/cipso_ipv4.c +++ b/net/ipv4/cipso_ipv4.c @@ -1142,7 +1142,9 @@ static int cipso_v4_map_cat_rng_hton(const struct cipso_v4_doi *doi_def, u32 cat_size = 0; /* make sure we don't overflow the 'array[]' variable */ - BUG_ON(net_cat_len > 30); + if (net_cat_len > + (CIPSO_V4_OPT_LEN_MAX - CIPSO_V4_HDR_LEN - CIPSO_V4_TAG_RNG_BLEN)) + return -ENOSPC; for (;;) { iter = netlbl_secattr_catmap_walk(secattr->mls_cat, iter + 1); -- cgit v1.2.2