| From a4f1b58eb48b349a5f353bc69c30be553506d33b Mon Sep 17 00:00:00 2001 |
| From: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> |
| Date: Thu, 25 Jul 2019 10:48:26 +0000 |
| Subject: [PATCH] 2019-07-25 Richard Biener <rguenther@suse.de> |
| |
| PR lto/90924 |
| Backport from mainline |
| 2019-07-12 Ren Kimura <rkx1209dev@gmail.com> |
| |
| * simple-object-elf.c (simple_object_elf_match): Check zero value |
| shstrndx. |
| |
| |
| git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-8-branch@273794 138bc75d-0d04-0410-961f-82ee72b054a4 |
| |
| Upstream-Status: Backport |
| Affectes: < 9.2 |
| CVE: CVE-2019-14250 |
| Dropped changelog |
| Signed-off-by: Armin Kuster <Akustre@mvista.com> |
| |
| --- |
| libiberty/simple-object-elf.c | 8 ++++++++ |
| 2 files changed, 17 insertions(+) |
| |
| Index: gcc-8.2.0/libiberty/simple-object-elf.c |
| =================================================================== |
| --- gcc-8.2.0.orig/libiberty/simple-object-elf.c |
| +++ gcc-8.2.0/libiberty/simple-object-elf.c |
| @@ -549,6 +549,14 @@ simple_object_elf_match (unsigned char h |
| return NULL; |
| } |
| |
| + if (eor->shstrndx == 0) |
| + { |
| + *errmsg = "invalid ELF shstrndx == 0"; |
| + *err = 0; |
| + XDELETE (eor); |
| + return NULL; |
| + } |
| + |
| return (void *) eor; |
| } |
| |