From 7b899be710263dd334112f18db0f055625d9da5a Mon Sep 17 00:00:00 2001 From: Benoît Ganne Date: Wed, 6 Mar 2024 19:02:18 +0100 Subject: fib: fix off-by-one error in rewrite length check MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The rewrite string can be up to max_size, and max_size can be up to VNET_REWRITE_TOTAL_BYTES. Don't waste the last byte. Type: fix Change-Id: I2fb7e9873b6b4c1e6a55b172c7f753f3c5910802 Signed-off-by: Benoît Ganne --- src/vnet/adj/rewrite.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/vnet/adj') diff --git a/src/vnet/adj/rewrite.h b/src/vnet/adj/rewrite.h index 5cb90e47318..06b1b00882e 100644 --- a/src/vnet/adj/rewrite.h +++ b/src/vnet/adj/rewrite.h @@ -147,8 +147,8 @@ vnet_rewrite_set_data_internal (vnet_rewrite_header_t * rw, int max_size, void *data, int data_bytes) { /* Sanity check values carefully for this clib_memset operation */ - ASSERT ((max_size > 0) && (max_size < VNET_REWRITE_TOTAL_BYTES)); - ASSERT ((data_bytes >= 0) && (data_bytes < max_size)); + ASSERT ((max_size > 0) && (max_size <= VNET_REWRITE_TOTAL_BYTES)); + ASSERT ((data_bytes >= 0) && (data_bytes <= max_size)); rw->data_bytes = data_bytes; clib_memcpy_fast (rw->data, data, data_bytes); -- cgit 1.2.3-korg