From 8248d21a5b8b7bb9970163b8b327f5ac2f857f33 Mon Sep 17 00:00:00 2001 From: Alan Modra Date: Wed, 11 Mar 2020 22:59:07 +1030 Subject: [PATCH] asan: som: unknown read * som.c (setup_sections): Sanity check subspace.name. --- bfd/ChangeLog | 4 ++++ bfd/som.c | 3 +++ 2 files changed, 7 insertions(+) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index c60fe8c7f93..3b252e11968 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,7 @@ +2020-03-11 Alan Modra + + * som.c (setup_sections): Sanity check subspace.name. + 2020-03-11 Alan Modra * elf64-ppc.c (ppc64_elf_inline_plt): Do increment rel in for loop. diff --git a/bfd/som.c b/bfd/som.c index 3aa3d60b02b..5676f0f5008 100644 --- a/bfd/som.c +++ b/bfd/som.c @@ -2197,6 +2197,9 @@ setup_sections (bfd *abfd, som_swap_subspace_dictionary_in (&ext_subspace, &subspace); /* Setup the subspace name string. */ + if (subspace.name >= file_hdr->space_strings_size) + goto error_return; + subspace_name = subspace.name + space_strings; amt = strlen (subspace_name) + 1; -- 2.30.2