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dea0c1e1f5
Upstream-Status: Backport [https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=3e307d538c351aa9327cbad672c884059ecc20dd] (From OE-Core rev: d478e7ea0bb897e13d86c476966924ef9927f11a) Signed-off-by: Yash Shinde <Yash.Shinde@windriver.com> Signed-off-by: Steve Sakoman <steve@sakoman.com>
38 lines
1.1 KiB
Diff
38 lines
1.1 KiB
Diff
From 3e307d538c351aa9327cbad672c884059ecc20dd Mon Sep 17 00:00:00 2001
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From: Nick Clifton <nickc@redhat.com>
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Date: Wed, 11 Jan 2023 12:13:46 +0000
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Subject: [PATCH] Fix a potential illegal memory access in the BFD library when
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parsing a corrupt DWARF file.
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PR 29988
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* dwarf2.c (read_indexed_address): Fix check for an out of range
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offset.
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Upstream-Status: Backport [https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=3e307d538c351aa9327cbad672c884059ecc20dd]
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CVE: CVE-2023-1579
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Signed-off-by: Yash Shinde <Yash.Shinde@windriver.com>
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---
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bfd/ChangeLog | 6 ++++++
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bfd/dwarf2.c | 2 +-
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2 files changed, 7 insertions(+), 1 deletion(-)
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diff --git a/bfd/dwarf2.c b/bfd/dwarf2.c
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index 6eb6e04e6e5..4ec0053a111 100644
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--- a/bfd/dwarf2.c
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+++ b/bfd/dwarf2.c
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@@ -1412,7 +1412,7 @@ read_indexed_address (uint64_t idx, struct comp_unit *unit)
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offset += unit->dwarf_addr_offset;
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if (offset < unit->dwarf_addr_offset
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|| offset > file->dwarf_addr_size
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- || file->dwarf_addr_size - offset < unit->offset_size)
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+ || file->dwarf_addr_size - offset < unit->addr_size)
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return 0;
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info_ptr = file->dwarf_addr_buffer + offset;
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--
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2.31.1
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