| From 4b8386a90802ed8e43eac2266f6e03c92b4462ed Mon Sep 17 00:00:00 2001 |
| From: Nick Clifton <nickc@redhat.com> |
| Date: Fri, 23 Dec 2022 13:02:04 +0000 |
| Subject: [PATCH] Fix illegal memory access parsing corrupt DWARF information. |
| |
| PR 29936 |
| * dwarf2.c (concat_filename): Fix check for a directory index off |
| the end of the directory table. |
| |
| Upstream-Status: Backport [https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=8af23b30edbaedf009bc9b243cd4dfa10ae1ac09] |
| CVE: CVE-2023-22608 |
| |
| Signed-off-by: Yash Shinde <Yash.Shinde@windriver.com> |
| |
| --- |
| bfd/dwarf2.c | 3 ++- |
| 1 file changed, 2 insertions(+), 1 deletion(-) |
| |
| diff --git a/bfd/dwarf2.c b/bfd/dwarf2.c |
| index b7839ad6..8b07a24c 100644 |
| --- a/bfd/dwarf2.c |
| +++ b/bfd/dwarf2.c |
| @@ -1828,7 +1828,8 @@ concat_filename (struct line_info_table *table, unsigned int file) |
| |
| if (table->files[file].dir |
| /* PR 17512: file: 0317e960. */ |
| - && table->files[file].dir <= table->num_dirs |
| + && table->files[file].dir |
| + <= (table->use_dir_and_file_0 ? table->num_dirs - 1 : table->num_dirs) |
| /* PR 17512: file: 7f3d2e4b. */ |
| && table->dirs != NULL) |
| { |