Author: avg
Date: Tue Sep 11 07:15:11 2012
New Revision: 240349
URL: http://svn.freebsd.org/changeset/base/240349
Log:
zfs boot: add a size check for a value in fzap_lookup
MFC after: 25 days
Modified:
head/sys/boot/zfs/zfsimpl.c
Modified: head/sys/boot/zfs/zfsimpl.c
==============================================================================
--- head/sys/boot/zfs/zfsimpl.c Tue Sep 11 07:13:58 2012 (r240348)
+++ head/sys/boot/zfs/zfsimpl.c Tue Sep 11 07:15:11 2012 (r240349)
@@ -1355,6 +1355,8 @@ fzap_lookup(const spa_t *spa, const dnod
zc = &ZAP_LEAF_CHUNK(&zl, zc->l_entry.le_next);
}
if (fzap_name_equal(&zl, zc, name)) {
+ if (zc->l_entry.le_value_intlen * zc->l_entry.le_value_numints
> 8)
+ return (E2BIG);
*value = fzap_leaf_value(&zl, zc);
return (0);
}
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