File procps-ng-3.3.10-integer-overflow.patch of Package procps

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File procps-ng-3.3.10-integer-overflow.patch of Package procps (Revision ec80bd70cde199df5ec43e678165a103)

Currently displaying revision ec80bd70cde199df5ec43e678165a103 , Show latest

---
 free.c         |   17 +++++++++++++++--
 proc/sysinfo.c |    5 ++++-
 2 files changed, 19 insertions(+), 3 deletions(-)

--- free.c
+++ free.c	2016-07-11 13:05:52.351515040 +0000
@@ -387,15 +387,28 @@ int main(int argc, char **argv)
 		 * to print the high info, even if it is zero.
 		 */
 		if (flags & FREE_LOHI) {
+			unsigned long kb_low_used;
+			unsigned long kb_high_used;
+
+			if (kb_low_total > kb_low_free)
+				kb_low_used = kb_low_total - kb_low_free;
+			else
+				kb_low_used = 0;
+
+			if (kb_high_total > kb_high_free)
+				kb_high_used = kb_high_total - kb_high_free;
+			else
+				kb_high_used = 0;
+
 			printf("%-7s", _("Low:"));
 			printf(" %11s", scale_size(kb_low_total, flags, args));
-			printf(" %11s", scale_size(kb_low_total - kb_low_free, flags, args));
+			printf(" %11s", scale_size(kb_low_used, flags, args));
 			printf(" %11s", scale_size(kb_low_free, flags, args));
 			printf("\n");
 
 			printf("%-7s", _("High:"));
 			printf(" %11s", scale_size(kb_high_total, flags, args));
-			printf(" %11s", scale_size(kb_high_total - kb_high_free, flags, args));
+			printf(" %11s", scale_size(kb_high_used, flags, args));
 			printf(" %11s", scale_size(kb_high_free, flags, args));
 			printf("\n");
 		}
--- proc/sysinfo.c
+++ proc/sysinfo.c	2016-07-11 13:08:00.145047300 +0000
@@ -709,7 +709,10 @@ nextline:
   kb_main_cached = kb_page_cache + kb_slab_reclaimable;
   if ((ev=getenv("PS_FULL_CACHE")))
     kb_main_cached += kb_swap_cached + kb_nfs_unstable;
-  kb_swap_used = kb_swap_total - kb_swap_free;
+  if (kb_swap_total > kb_swap_free)
+    kb_swap_used = kb_swap_total - kb_swap_free;
+  else
+    kb_swap_used = 0;
 
   /* if kb_main_available is greater than kb_main_total or our calculation of
      mem_used overflows, that's symptomatic of running within a lxc container

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File procps-ng-3.3.10-integer-overflow.patch of Package procps (Revision ec80bd70cde199df5ec43e678165a103)

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