Merge pull request #47 from cakebaker/free_fix_subtract_with_overflow

free: prevent subtract with overflow on macOS
uutils · Apr 1, 2024 · 65f933b · 65f933b
2 parents c5e7417 + b7d89f6
commit 65f933b
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/uu/free/src/free.rs b/src/uu/free/src/free.rs
@@ -85,10 +85,10 @@ fn parse_meminfo() -> Result<MemInfo, Box<dyn std::error::Error>> {
         available: sys.free_memory(),
         shared: 0,
         buffers: 0,
-        cached: sys.used_memory() - sys.free_memory(),
+        cached: sys.used_memory().saturating_sub(sys.free_memory()),
         swap_total: sys.total_swap(),
         swap_free: sys.free_swap(),
-        swap_used: sys.total_swap() - sys.free_swap(),
+        swap_used: sys.total_swap().saturating_sub(sys.free_swap()),
         reclaimable: 0,
     };