Bug 26475 - UBSAN error: bfd/elfxx-mips.c:12180:3:
Summary: UBSAN error: bfd/elfxx-mips.c:12180:3:
Status: RESOLVED FIXED
Alias: None
Product: binutils
Classification: Unclassified
Component: binutils (show other bugs)
Version: 2.34
: P2 normal
Target Milestone: 2.36
Assignee: Alan Modra
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-08-20 12:34 UTC by Martin Liska
Modified: 2020-08-26 14:38 UTC (History)
0 users

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Host:
Target:
Build:
Last reconfirmed: 2020-08-26 00:00:00


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Description Martin Liska 2020-08-20 12:34:30 UTC
The following fails when I build binutils with:
configure --build=x86_64-linux --disable-nls --disable-gdb --disable-gdbserver --disable-sim --disable-readline --disable-libdecnumber --enable-obsolete --target=mips-sgi-irix6 CFLAGS="-g -O2 -fsanitize=address,undefined -Wno-error" CXXLAGS="-g -O2 -fsanitize=address,undefined -Wno-error" LDFLAGS="-ldl"
Target: mips-sgi-irix6
PASS: pr26103
Executing on host: sh -c {./ld-new   -o tmpdir/libmips-o32-copyreloc-comm-data.so -z norelro -L/home/mliska/Programming/binutils/ld/testsuite/ld-mips-elf -melf32bsmip -shared tmpdir/comm-data1.o  2>&1}  /dev/null ld.tmp (timeout = 300)
/home/mliska/Programming/binutils/bfd/elfxx-mips.c:12180:3: runtime error: null pointer passed as argument 1, which is declared to never be null
Comment 1 cvs-commit@gcc.gnu.org 2020-08-26 13:55:03 UTC
The master branch has been updated by Alan Modra <amodra@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=55e61b8ad977cba772753c8dbba5c81f6b1fa54c

commit 55e61b8ad977cba772753c8dbba5c81f6b1fa54c
Author: Alan Modra <amodra@gmail.com>
Date:   Wed Aug 26 18:22:07 2020 +0930

    PR26475 UBSAN: elfxx-mips.c:12180 null pointer memset
    
    Another memset(0,0,0)
    
            PR 26475
            * elfxx-mips.c (_bfd_mips_elf_finish_dynamic_sections): Check
            sstubs->contents != NULL.
Comment 2 Alan Modra 2020-08-26 14:38:17 UTC
Fixed