From 7e7fe34f7309ca13a5f0e74694bc1246ca93b35a Mon Sep 17 00:00:00 2001 From: Francois-Xavier Le Bail Date: Mon, 6 Oct 2025 09:27:08 +0200 Subject: [PATCH] BOOTP: Improve a bounds check No need to check if zero bytes were captured. --- print-bootp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/print-bootp.c b/print-bootp.c index 377837387..4f18199fa 100644 --- a/print-bootp.c +++ b/print-bootp.c @@ -641,7 +641,8 @@ rfc1048_print(netdissect_options *ndo, ND_PRINT(", occurs %u", ntag); } - ND_TCHECK_LEN(bp, len); + if (len != 0) + ND_TCHECK_LEN(bp, len); if (tag == TAG_DHCP_MESSAGE && len == 1) { ND_PRINT("%s",