Date: Fri, 19 Feb 2010 22:31:11 GMT From: Jozsef Kovacs <jozsef.kovacs@datira.com> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/144116: ld-elf.so.1 infinite loop when executed Message-ID: <201002192231.o1JMVBtC063034@www.freebsd.org> Resent-Message-ID: <201002192240.o1JMe1Wg089686@freefall.freebsd.org>
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>Number: 144116
>Category: i386
>Synopsis: ld-elf.so.1 infinite loop when executed
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-i386
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Feb 19 22:40:01 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator: Jozsef Kovacs
>Release: RELENG_7_2
>Organization:
Datira Ltd
>Environment:
FreeBSD kalman 7.2-RELEASE-p6 FreeBSD 7.2-RELEASE-p6 #0: Wed Feb 3 02:39:55 CET 2010 root@:/usr/obj/usr/src/sys/DATIRA i386
>Description:
/libexec/ld-elf.so.1 when directly executed keeps loading itself over and over, causing 100% cpu load.
Compiling the library with -DDEBUG revealed that the following segment loops:
---
relocating "/usr/obj/usr/src/libexec/rtld-elf/ld-elf.so.1"
doing copy relocations
initializing key program variables
initializing thread locks
_rtld_thread_init: done
transferring control to program entry point = 0x15b0
/libexec/ld-elf.so.1 is initialized, base address = 0x0
RTLD dynamic = 0x270a0
RTLD pltgot = 0x0
processing main program's program header
Ignoring d_tag 1879048186 = 0x6ffffffa
lm_init("(null)")
loading LD_PRELOAD libraries
loading needed objects
checking for required versions
initializing initial thread local storage
---
Expected behaviour:
$ /libexec/ld-elf.so.1
bash: /libexec/ld-elf.so.1: cannot execute binary file
Confirmed on a RELENG_6_3 machine
>How-To-Repeat:
execute /libexec/ld-elf.so.1
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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