27 lines
908 B
Diff
27 lines
908 B
Diff
From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
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From: Nick Clifton <nickc@redhat.com>
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Date: Wed, 19 Oct 2022 15:09:12 +0100
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Subject: gdb-rhbz2153228-fail-if-sh_info-is-zero.patch
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;; Backport "Fix an illegal memory access when parsing..."
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;; (Nick Clifton, RHBZ 2153228)
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PR 29699
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* elf.c (_bfd_elf_slurp_version_tables): Fail if the sh_info field
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of the section header is zero.
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diff --git a/bfd/elf.c b/bfd/elf.c
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--- a/bfd/elf.c
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+++ b/bfd/elf.c
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@@ -8832,7 +8832,9 @@ _bfd_elf_slurp_version_tables (bfd *abfd, bool default_imported_symver)
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bfd_set_error (bfd_error_file_too_big);
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goto error_return_verref;
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}
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- elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) bfd_alloc (abfd, amt);
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+ if (amt == 0)
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+ goto error_return_verref;
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+ elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) bfd_zalloc (abfd, amt);
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if (elf_tdata (abfd)->verref == NULL)
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goto error_return_verref;
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