[binutils-gdb] Fix a seg-fault in readelf when parsing corrupt HPPA unwind tables.

[Nick Clifton]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=66b09c7ea97ffa4e0a175393fa7a8f240b00fbde

commit 66b09c7ea97ffa4e0a175393fa7a8f240b00fbde
Author: L. Simon <l.simon@samsung.com>
Date:   Tue Aug 21 15:37:06 2018 +0100

    Fix a seg-fault in readelf when parsing corrupt HPPA unwind tables.
    
    	PR 23531
    	* readelf.c (hppa_process_unwind): Only dump the unwind table if
    	the data was successfully read in.

Diff:
---
 binutils/ChangeLog | 6 ++++++
 binutils/readelf.c | 4 ++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 265bd68..ab7183b 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,9 @@
+2018-08-21  L. Simon  <l.simon@samsung.com>
+
+	PR 23531
+	* readelf.c (hppa_process_unwind): Only dump the unwind table if
+	the data was successfully read in.
+
 2018-08-18  Alan Modra  <amodra@gmail.com>
 
 	* testsuite/lib/binutils-common.exp (is_elf64): Use directory of
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 8a61db6..52aebd3 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -8130,8 +8130,8 @@ hppa_process_unwind (Filedata * filedata)
 
           if (! slurp_hppa_unwind_table (filedata, &aux, sec))
 	    res = FALSE;
-	
-	  if (aux.table_len > 0)
+
+	  if (res && aux.table_len > 0)
 	    {
 	      if (! dump_hppa_unwind (filedata, &aux))
 		res = FALSE;