Bug 2211836

Summary:	valgrind errors on openscap memcheck
Product:	Red Hat Enterprise Linux 8	Reporter:	Matus Marhefka <mmarhefk>
Component:	valgrind	Assignee:	Mark Wielaard <mjw>
valgrind sub component:	system-version	QA Contact:	Jesus Checa <jchecahi>
Status:	CLOSED ERRATA	Docs Contact:
Severity:	unspecified
Priority:	unspecified	CC:	fweimer, jakub, mjw, ohudlick, qe-baseos-tools-bugs, wcohen
Version:	8.9	Keywords:	Triaged
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	valgrind-3.21.0-7.el8	Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:	2209676	Environment:
Last Closed:	2023-11-14 15:32:03 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2209676
Bug Blocks:
Deadline:	2023-07-03

Description Matus Marhefka 2023-06-02 07:55:50 UTC

+++ This bug was initially created as a clone of Bug #2209676 +++

Description of problem:
valgrind errors on openscap memcheck, see the reproducer below. Snip of the log with error (full valgrind output (valgrind.out) is attached):

==33335== Memcheck, a memory error detector
==33335== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
==33335== Using Valgrind-3.21.0 and LibVEX; rerun with -h for copyright info
==33335== Command: oscap oval eval rpmverifyfile.oval.xml
==33335== 
==33335== Thread 4 input_handler:
==33335== realloc() with size 0
==33335==    at 0x4849A40: realloc (vg_replace_malloc.c:1649)
==33335==    by 0x495A9CA: UnknownInlinedFun (seap-packet.c:209)
==33335==    by 0x495A9CA: SEAP_packet_recv.isra.0 (seap-packet.c:730)
==33335==    by 0x4931403: SEAP_recvmsg (seap.c:360)
==33335==    by 0x4934034: probe_input_handler (input_handler.c:102)
==33335==    by 0x4A57831: start_thread (in /usr/lib64/libc.so.6)
==33335==    by 0x49F7313: clone (in /usr/lib64/libc.so.6)
==33335==  Address 0x7e44fe0 is 0 bytes after a block of size 0 alloc'd
==33335==    at 0x484482F: malloc (vg_replace_malloc.c:431)
==33335==    by 0x495A40F: UnknownInlinedFun (seap-packet.c:110)
==33335==    by 0x495A40F: SEAP_packet_recv.isra.0 (seap-packet.c:730)
==33335==    by 0x4931403: SEAP_recvmsg (seap.c:360)
==33335==    by 0x4934034: probe_input_handler (input_handler.c:102)
==33335==    by 0x4A57831: start_thread (in /usr/lib64/libc.so.6)
==33335==    by 0x49F7313: clone (in /usr/lib64/libc.so.6)
==33335== 
Error:
  unknown error code 14

Memcheck: the 'impossible' happened:
   unknown error code in mc_eq_Error
...


Version-Release number of selected component (if applicable):
valgrind-3.21.0-2.el8.x86_64
openscap-1.3.7-1.el8.x86_64


How reproducible:
deterministic


Steps to Reproduce:
1. dnf -y install openscap-scanner valgrind
2. dnf -y debuginfo-install openscap
3. valgrind --leak-check=full oscap oval eval rpmverifyfile.oval.xml &>valgrind.out

Note: Tested on RHEL-8.9.0-20230521.41 compose, error occurs also without `--leak-check=full` parameter. File rpmverifyfile.oval.xml is attached.


Actual results:
valgrind errors on openscap memcheck with "unknown error code 14".


Expected results:
valgrind successfully performs openscap memcheck.


Additional info:

Comment 6 errata-xmlrpc 2023-11-14 15:32:03 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (valgrind bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2023:6953