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gcc-toolset-13-gdb/SOURCES/gdb-rhbz2153227-fail-if-sh_...

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From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
From: Nick Clifton <nickc@redhat.com>
Date: Wed, 19 Oct 2022 15:09:12 +0100
Subject: gdb-rhbz2153227-fail-if-sh_info-is-zero.patch
;; Backport "Fix an illegal memory access when parsing..."
;; (Nick Clifton, RHBZ 2153227)
PR 29699
* elf.c (_bfd_elf_slurp_version_tables): Fail if the sh_info field
of the section header is zero.
diff --git a/bfd/elf.c b/bfd/elf.c
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -8832,7 +8832,9 @@ _bfd_elf_slurp_version_tables (bfd *abfd, bool default_imported_symver)
bfd_set_error (bfd_error_file_too_big);
goto error_return_verref;
}
- elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) bfd_alloc (abfd, amt);
+ if (amt == 0)
+ goto error_return_verref;
+ elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) bfd_zalloc (abfd, amt);
if (elf_tdata (abfd)->verref == NULL)
goto error_return_verref;