From 27c951adbd5d7ebe95f08c18257ea031bdd59ee1 Mon Sep 17 00:00:00 2001
From: Vincent Mihalkovic <vmihalko@redhat.com>
Date: Mon, 6 Feb 2023 15:00:16 +0100
Subject: [PATCH] For dynamic binaries let the df_1 pie flag determine if we
are pie or a shared object, and ignore the mode bits.
upstream commit: 03084b161cf888b5286dbbcd964c31ccad4f64d9
---
src/readelf.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/readelf.c b/src/readelf.c
index 94cdaca..9c75c0a 100644
--- a/src/readelf.c
+++ b/src/readelf.c
@@ -1058,7 +1058,7 @@ dodynamic(struct magic_set *ms, void *vbuf, size_t offset, size_t size,
switch (xdh_tag) {
case DT_FLAGS_1:
- if (xdh_val == DF_1_PIE)
+ if (xdh_val & DF_1_PIE)
ms->mode |= 0111;
else
ms->mode &= ~0111;
@@ -1611,6 +1611,8 @@ dophn_exec(struct magic_set *ms, int clazz, int swap, int fd, off_t off,
switch (xph_type) {
case PT_DYNAMIC:
offset = 0;
+ // Let DF_1 determine if we are PIE or not.
+ ms->mode &= ~0111;
for (;;) {
if (offset >= (size_t)bufsize)
break;
--
2.39.1