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authorAndreas Schwab <schwab@redhat.com>2010-09-01 12:38:44 -0700
committerPetr Baudis <pasky@suse.cz>2010-11-09 02:12:46 +0100
commit5f353d1e05659d8515511f28b875b9fd10c1a661 (patch)
tree548641655af2f4957b9b35ba96b369a433f2e682
parent311ad04d94a2e34dc4c418fe19f146e94a41946f (diff)
Fix array overflow in floating point parser
(cherry picked from commit a726d7960e8a4ac784131f591114a0ef14246d8b)
-rw-r--r--ChangeLog6
-rw-r--r--stdlib/strtod_l.c4
2 files changed, 9 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index c8bdd6dba2..5b04f1b5ad 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2010-08-31 Andreas Schwab <schwab@redhat.com>
+
+ [BZ #7066]
+ * stdlib/strtod_l.c (____STRTOF_INTERNAL): Fix array overflow when
+ shifting retval into place.
+
2010-09-14 Ulrich Drepper <drepper@redhat.com>
* resolv/res_init.c (__res_vinit): Count the default server we added.
diff --git a/stdlib/strtod_l.c b/stdlib/strtod_l.c
index 9ddfa3fa66..099fcf751e 100644
--- a/stdlib/strtod_l.c
+++ b/stdlib/strtod_l.c
@@ -1491,7 +1491,9 @@ ____STRTOF_INTERNAL (nptr, endptr, group, loc)
register int i;
(void) __mpn_lshift (&retval[used
/ BITS_PER_MP_LIMB],
- retval, RETURN_LIMB_SIZE,
+ retval,
+ (RETURN_LIMB_SIZE
+ - used / BITS_PER_MP_LIMB),
used % BITS_PER_MP_LIMB);
for (i = used / BITS_PER_MP_LIMB - 1; i >= 0; --i)
retval[i] = 0;