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authorFlorian Weimer <fweimer@redhat.com>2018-11-26 20:06:37 +0100
committerFlorian Weimer <fweimer@redhat.com>2018-11-26 20:06:37 +0100
commitaffec03b713c82c43a5b025dddc21bde3334f41e (patch)
tree3026478268be021b7ba6d0d2650ce511cbf588b4 /ChangeLog
parent8ae74eadb60eb36424e4605939cef5fc966724be (diff)
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malloc: tcache: Validate tc_idx before checking for double-frees [BZ #23907]
The previous check could read beyond the end of the tcache entry
array.  If the e->key == tcache cookie check happened to pass, this
would result in crashes.
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+2018-11-26  Florian Weimer  <fweimer@redhat.com>
+
+	[BZ #23907]
+	* malloc/malloc.c (_int_free): Validate tc_idx before checking for
+	double-frees.
+
 2018-11-26  Rafael Ávila de Espíndola  <rafael@espindo.la>
 
 	[BZ #19767]