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authorTimotheeChauvin <timchauv@cisco.com>2020-07-16 12:27:10 +0000
committerBenoƮt Ganne <bganne@cisco.com>2020-07-17 07:09:45 +0000
commit2887159a1a5f5c501c2df59bf88e6faa38e9699f (patch)
tree431ef75c8b8ad77a4d693a49902023a4d5f8d620 /src
parent6c81f5a2493ff65b4dacfef45db8a1ee459a738f (diff)
pppoe: fix uninitialized memory bug
In pppoe_cp_node.c, node->errors[error0] was accessed without node->errors being initialized. Found with AFL + ASAN. Type: fix Signed-off-by: TimotheeChauvin <timchauv@cisco.com> Change-Id: Ide8a60021b2d47b5e2fce7062d8f12c7f4d225f7
Diffstat (limited to 'src')
-rw-r--r--src/plugins/pppoe/pppoe.h1
-rw-r--r--src/plugins/pppoe/pppoe_cp_node.c3
-rw-r--r--src/plugins/pppoe/pppoe_decap.c4
3 files changed, 7 insertions, 1 deletions
diff --git a/src/plugins/pppoe/pppoe.h b/src/plugins/pppoe/pppoe.h
index 471727ce893..3e331ee6a11 100644
--- a/src/plugins/pppoe/pppoe.h
+++ b/src/plugins/pppoe/pppoe.h
@@ -94,6 +94,7 @@ typedef enum
PPPOE_N_ERROR,
} pppoe_input_error_t;
+extern char *pppoe_error_strings[];
#define MTU 1500
#define MTU_BUFFERS ((MTU + vlib_buffer_get_default_data_size(vm) - 1) / vlib_buffer_get_default_data_size(vm))
diff --git a/src/plugins/pppoe/pppoe_cp_node.c b/src/plugins/pppoe/pppoe_cp_node.c
index 3f866450cfb..bf9018e8c90 100644
--- a/src/plugins/pppoe/pppoe_cp_node.c
+++ b/src/plugins/pppoe/pppoe_cp_node.c
@@ -237,6 +237,9 @@ VLIB_REGISTER_NODE (pppoe_cp_dispatch_node) = {
/* Takes a vector of packets. */
.vector_size = sizeof (u32),
+ .n_errors = PPPOE_N_ERROR,
+ .error_strings = pppoe_error_strings,
+
.n_next_nodes = PPPOE_CP_N_NEXT,
.next_nodes = {
#define _(s,n) [PPPOE_CP_NEXT_##s] = n,
diff --git a/src/plugins/pppoe/pppoe_decap.c b/src/plugins/pppoe/pppoe_decap.c
index 256dd83e43d..d3f4a5fedf3 100644
--- a/src/plugins/pppoe/pppoe_decap.c
+++ b/src/plugins/pppoe/pppoe_decap.c
@@ -390,12 +390,14 @@ VLIB_NODE_FN (pppoe_input_node) (vlib_main_t * vm,
return from_frame->n_vectors;
}
-static char * pppoe_error_strings[] = {
+#ifndef CLIB_MARCH_VARIANT
+char * pppoe_error_strings[] = {
#define pppoe_error(n,s) s,
#include <pppoe/pppoe_error.def>
#undef pppoe_error
#undef _
};
+#endif /* CLIB_MARCH_VARIANT */
VLIB_REGISTER_NODE (pppoe_input_node) = {
.name = "pppoe-input",