From: Alan Modra <amodra@gmail.com>
To: binutils@sourceware.org
Subject: ubsan: som_is_space null dereference
Date: Wed, 14 Sep 2022 10:11:14 +0930 [thread overview]
Message-ID: <YyEjKiI9ntvfho+7@squeak.grove.modra.org> (raw)
On objcopy of fuzzed file.
* som.c (som_write_fixups): Exit loop if space sections all
processed.
diff --git a/bfd/som.c b/bfd/som.c
index c22f13b5a4c..38c574a97c8 100644
--- a/bfd/som.c
+++ b/bfd/som.c
@@ -2933,8 +2933,10 @@ som_write_fixups (bfd *abfd,
asection *subsection;
/* Find a space. */
- while (!som_is_space (section))
+ while (section && !som_is_space (section))
section = section->next;
+ if (!section)
+ break;
/* Now iterate through each of its subspaces. */
for (subsection = abfd->sections;
--
Alan Modra
Australia Development Lab, IBM
next reply other threads:[~2022-09-14 0:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-14 0:41 Alan Modra [this message]
2022-09-14 0:52 ` Jeff Law
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