From: Benoît Ganne <bganne@cisco.com>
Date: Fri, 20 Jan 2023 08:52:01 +0000 (+0100)
Subject: vlib: make pending_interrupts valid for AddressSanitizer
X-Git-Tag: v23.10-rc0~295
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=6a782ca3b0782116c5f34d1c958998e9a0af41ca;p=vpp.git

vlib: make pending_interrupts valid for AddressSanitizer

vec_alloc_aligned() pre-allocates the vector memory but does not
update its size, making ASan unhappy when trying to access it.

Type: fix

Change-Id: I80e753cf2458cf516d1180a24cfaca4f382339d5
Signed-off-by: Benoît Ganne <bganne@cisco.com>
---

diff --git a/src/vlib/main.c b/src/vlib/main.c
index 964bc4a04e9..dc21a3f2c67 100644
--- a/src/vlib/main.c
+++ b/src/vlib/main.c
@@ -1472,7 +1472,7 @@ vlib_main_or_worker_loop (vlib_main_t * vm, int is_main)
     cpu_time_now = clib_cpu_time_now ();
 
   /* Pre-allocate interupt runtime indices and lock. */
-  vec_alloc_aligned (nm->pending_interrupts, 1, CLIB_CACHE_LINE_BYTES);
+  vec_validate_aligned (nm->pending_interrupts, 0, CLIB_CACHE_LINE_BYTES);
 
   /* Pre-allocate expired nodes. */
   if (!nm->polling_threshold_vector_length)