procps-ng/SOURCES/cve-2023-4016.patch

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2023-11-07 11:34:59 +00:00
diff --git a/ps/parser.c b/ps/parser.c
index 4263a1f..b33f319 100644
--- a/ps/parser.c
+++ b/ps/parser.c
@@ -31,7 +31,7 @@
#include <sys/stat.h>
#include <sys/types.h>
-#include "../proc/alloc.h"
+#include "xalloc.h"
#include "common.h"
#include "c.h"
@@ -184,8 +184,8 @@ static const char *parse_list(const char *arg, const char *(*parse_fn)(char *, s
const char *err; /* error code that could or did happen */
/*** prepare to operate ***/
node = malloc(sizeof(selection_node));
- node->u = malloc(strlen(arg)*sizeof(sel_union)); /* waste is insignificant */
node->n = 0;
+ node->u = NULL;
buf = strdup(arg);
/*** sanity check and count items ***/
need_item = 1; /* true */
@@ -199,12 +199,13 @@ static const char *parse_list(const char *arg, const char *(*parse_fn)(char *, s
need_item=1;
break;
default:
- if(need_item) items++;
+ if(need_item && items<INT_MAX) items++;
need_item=0;
}
} while (*++walk);
if(need_item) goto parse_error;
node->n = items;
+ node->u = xcalloc(items, sizeof(sel_union));
/*** actually parse the list ***/
walk = buf;
while(items--){
@@ -1031,15 +1032,15 @@ static const char *parse_trailing_pids(void){
thisarg = ps_argc - 1; /* we must be at the end now */
pidnode = malloc(sizeof(selection_node));
- pidnode->u = malloc(i*sizeof(sel_union)); /* waste is insignificant */
+ pidnode->u = xcalloc(i, sizeof(sel_union)); /* waste is insignificant */
pidnode->n = 0;
grpnode = malloc(sizeof(selection_node));
- grpnode->u = malloc(i*sizeof(sel_union)); /* waste is insignificant */
+ grpnode->u = xcalloc(i, sizeof(sel_union)); /* waste is insignificant */
grpnode->n = 0;
sidnode = malloc(sizeof(selection_node));
- sidnode->u = malloc(i*sizeof(sel_union)); /* waste is insignificant */
+ sidnode->u = xcalloc(i, sizeof(sel_union)); /* waste is insignificant */
sidnode->n = 0;
while(i--){
--
2.40.1