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Avoid infinite loop if the file's length is negative.
author
Wayne Davison
<wayned@samba.org>
Sat, 21 Aug 2010 18:26:21 +0000
(11:26 -0700)
committer
Wayne Davison
<wayned@samba.org>
Mon, 6 Sep 2010 15:05:26 +0000
(08:05 -0700)
Fixes bug 4664.
generator.c
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diff --git
a/generator.c
b/generator.c
index 3467cfa865c6360cbc294cbdc8faa6800ce0eb4a..635fcb9704b77751c9c1eb87f344e674eb6326b1 100644
(file)
--- a/
generator.c
+++ b/
generator.c
@@
-761,6
+761,12
@@
static void sum_sizes_sqroot(struct sum_struct *sum, int64 len)
int s2length;
int64 l;
+ if (len < 0) {
+ /* The file length overflowed our int64 var, so we can't process this file. */
+ sum->count = -1; /* indicate overflow error */
+ return;
+ }
+
if (block_size)
blength = block_size;
else if (len <= BLOCK_SIZE * BLOCK_SIZE)