From: Mark Wielaard <mark@klomp.org>
To: elfutils-devel@sourceware.org
Cc: Mark Wielaard <mark@klomp.org>
Subject: [COMMITTED] readelf: Check gelf_getdyn doesn't return NULL
Date: Thu, 3 Nov 2022 14:18:27 +0100 [thread overview]
Message-ID: <20221103131827.18315-1-mark@klomp.org> (raw)
Signed-off-by: Mark Wielaard <mark@klomp.org>
---
src/ChangeLog | 5 +++++
src/readelf.c | 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/src/ChangeLog b/src/ChangeLog
index 0c5ab37e..66428b70 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2022-11-03 Mark Wielaard <mark@klomp.org>
+
+ * readelf.c (get_dynscn_addrs): Check gelf_getdyn doesn't
+ return NULL.
+
2022-11-03 Mark Wielaard <mark@klomp.org>
* readelf.c (handle_dynamic): Check phdr != NULL when
diff --git a/src/readelf.c b/src/readelf.c
index e721a209..3dafb041 100644
--- a/src/readelf.c
+++ b/src/readelf.c
@@ -4910,7 +4910,7 @@ get_dynscn_addrs(Elf *elf, GElf_Phdr *phdr, GElf_Addr addrs[i_max])
GElf_Dyn dyn_mem;
GElf_Dyn *dyn = gelf_getdyn(data, dyn_idx, &dyn_mem);
/* DT_NULL Marks end of dynamic section. */
- if (dyn->d_tag == DT_NULL)
+ if (dyn == NULL || dyn->d_tag == DT_NULL)
break;
switch (dyn->d_tag) {
--
2.18.4
reply other threads:[~2022-11-03 13:18 UTC|newest]
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