Bug 1937867

Summary:	samba printing dumps core
Product:	Red Hat Enterprise Linux 7	Reporter:	Heinrich Mislik <heinrich.mislik>
Component:	samba	Assignee:	Andreas Schneider <asn>
Status:	CLOSED ERRATA	QA Contact:	sssd-qe <sssd-qe>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	7.9	CC:	asn, dkarpele, gdeschner, jarrpa, jreznik, mkosek, thalman, tscherf
Target Milestone:	rc	Keywords:	Triaged, ZStream
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	samba-4.10.16-14.el7_9	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-06-08 22:30:45 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:

Description Heinrich Mislik 2021-03-11 16:34:26 UTC

Description of problem:

Printing to samba leads to core dump of smbd.

Version-Release number of selected component (if applicable):

samba-4.10.16-9.el7_9.x86_64

Steps to Reproduce:

Configure a printer share containing 

invalid users = someuser

and try to print.

Actual results:

Coredump

Expected results:

File gets printed.


Additional info:

https://bugzilla.samba.org/show_bug.cgi?id=14572
https://bugzilla.samba.org/show_bug.cgi?id=14568

This happens, because first patch for

https://bugzilla.samba.org/show_bug.cgi?id=14467

is in error:

samba-4.10-redhat.patch Line 3032 has:

         size_t domain_len = strlen(domain);

This crashes, since domain can be NULL.

Cheers

Heinrich

Comment 11 errata-xmlrpc 2021-06-08 22:30:45 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 (Moderate: samba security and bug fix 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/RHSA-2021:2313