D1877: bdiff: Handle the possibility of an integer overflow when allocating

[alex_gaynor (Alex Gaynor)]

This revision was automatically updated to reflect the committed changes.
Closed by commit rHGcf2e2a7399bc: bdiff: handle the possibility of an integer overflow when allocating (authored by alex_gaynor, committed by ).

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST UPDATE
  https://phab.mercurial-scm.org/D1877?vs=4858&id=4862

REVISION DETAIL
  https://phab.mercurial-scm.org/D1877

AFFECTED FILES
  mercurial/bdiff.c

CHANGE DETAILS

diff --git a/mercurial/bdiff.c b/mercurial/bdiff.c
--- a/mercurial/bdiff.c
+++ b/mercurial/bdiff.c
@@ -41,7 +41,7 @@
 	if (p == plast)
 		i++;
 
-	*lr = l = (struct bdiff_line *)malloc(sizeof(struct bdiff_line) * i);
+	*lr = l = (struct bdiff_line *)calloc(i, sizeof(struct bdiff_line));
 	if (!l)
 		return -1;
 



To: alex_gaynor, #hg-reviewers, durin42
Cc: indygreg, durin42, mercurial-devel