From: Alan Modra <amodra@gmail.com>
To: binutils@sourceware.org
Subject: msan: vms-alpha use-of-uninitialized-value in dst_retrieve_location
Date: Wed, 14 Sep 2022 10:10:39 +0930 [thread overview]
Message-ID: <YyEjBz7vacCpR1Bm@squeak.grove.modra.org> (raw)
Another fuzzed object file.
* vms-alpha.c (dst_define_location): Init any unused entries.
diff --git a/bfd/vms-alpha.c b/bfd/vms-alpha.c
index 0ea9ed544f1..9db476363ee 100644
--- a/bfd/vms-alpha.c
+++ b/bfd/vms-alpha.c
@@ -1570,6 +1570,8 @@ dst_define_location (bfd *abfd, unsigned int loc)
(loc + 1) * sizeof (unsigned int));
if (PRIV (dst_ptr_offsets) == NULL)
return false;
+ memset (PRIV (dst_ptr_offsets) + PRIV (dst_ptr_offsets_count), 0,
+ (loc - PRIV (dst_ptr_offsets_count)) * sizeof (unsigned int));
PRIV (dst_ptr_offsets_count) = loc + 1;
}
--
Alan Modra
Australia Development Lab, IBM
reply other threads:[~2022-09-14 0:40 UTC|newest]
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