RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 797979 - don't abort upon unexpected file system contents
Summary: don't abort upon unexpected file system contents
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: parted
Version: 6.2
Hardware: All
OS: Linux
low
low
Target Milestone: rc
: ---
Assignee: Brian Lane
QA Contact: Release Test Team
URL:
Whiteboard:
Depends On:
Blocks: 840685
TreeView+ depends on / blocked
 
Reported: 2012-02-27 17:37 UTC by Jim Meyering
Modified: 2013-03-13 20:41 UTC (History)
3 users (show)

Fixed In Version: parted-2.1-19.el6
Doc Type: Bug Fix
Doc Text:
Cause: Unexpected HFS+ filesystem contents Consequence: parted would crash Fix: Added a number of checks for unexpected values to the HFS+ code. Result: parted doesn't crash.
Clone Of:
Environment:
Last Closed: 2013-02-21 10:13:31 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
reduced image based on one from Chris Murphy (346 bytes, application/x-bzip2)
2012-02-27 17:37 UTC, Jim Meyering 		no flags Details
new 'no abort' Apple Boot partition (394 bytes, application/x-bzip2)
2012-02-28 00:16 UTC, Chris Murphy 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2013:0407 0 normal SHIPPED_LIVE parted bug fix and enhancement update 2013-02-20 20:50:39 UTC

Description Jim Meyering 2012-02-27 17:37:58 UTC 
Created attachment 566113 [details]
reduced image based on one from Chris Murphy

Description of problem: probing (meaning any operation) could provoke failed assertion.

Version-Release number of selected component (if applicable): parted-2.1-18.el6.x86_64

How reproducible: every time

Steps to Reproduce:
1. parted -s AppleBoot.img u s p
2.
3.
  
Actual results: abort


Expected results: no abort


Additional info:
The original .img file was a 620MB monstrosity.
I found that with only the first and last 14KB of data
and with everything else zeroed out, it's still reproducible,
so created a sparse file like that which occupied only ~30KB.
GNU tar's --sparse option encodes that sensibly, so I've attached
an equivalent compressed tarball that occupies only just 4KiB.

backtrace, a little analysis and patch posted here:
http://thread.gmane.org/gmane.comp.gnu.parted.bugs/10726/focus=10778
Comment 1 Chris Murphy 2012-02-27 22:47:55 UTC 
Only reproducible with the single example partition instance Jim attached. Through regression, I have been unable to produce an Apple Boot partition that causes an abort. The Apple Boot JHFS+ file system is clean per Apple's fsck_hfs utility, so I'm just not sure what's unique about this partition, but it does not seem to be common or likely to be encountered in the real world.


Further regression details here:
http://lists.gnu.org/archive/html/bug-parted/2012-02/msg00076.html
Comment 2 Chris Murphy 2012-02-28 00:16:43 UTC 
Created attachment 566163 [details]
new 'no abort' Apple Boot partition

This is the resulting partition after regression steps followed, does not induce a parted crash. Unclear what the difference is between this and original.
Comment 3 Brian Lane 2012-06-05 17:48:30 UTC 
patch from the list referenced in comment 1

--- ../libparted/fs/hfs/probe.c.~1~	2012-02-26 13:46:33.357842027 -0500
+++ ../libparted/fs/hfs/probe.c	2012-02-26 13:47:30.069592361 -0500
@@ -156,8 +156,9 @@
 		search = ((PedSector) PED_BE32_TO_CPU (vh->total_blocks) - 1)
 		      * ( PED_BE32_TO_CPU (vh->block_size) / PED_SECTOR_SIZE_DEFAULT )
 		      - 1;
-		if (!ped_geometry_set (geom_ret, geom_ret->start,
-					       search + 2)
+		if (search < 0
+		    || !ped_geometry_set (geom_ret, geom_ret->start,
+					  search + 2)
 		    || !ped_geometry_read (geom_ret, buf, search, 1)
 		    || vh->signature != PED_CPU_TO_BE16 (HFSP_SIGNATURE)) {
 		    	ped_geometry_destroy (geom_ret);
Comment 4 RHEL Program Management 2012-07-16 22:47:21 UTC 
This request was evaluated by Red Hat Product Management for
inclusion in a Red Hat Enterprise Linux release.  Product
Management has requested further review of this request by
Red Hat Engineering, for potential inclusion in a Red Hat
Enterprise Linux release for currently deployed products.
This request is not yet committed for inclusion in a release.
Comment 6 Jan Stodola 2013-01-03 12:54:45 UTC 
Reproduced with parted-2.1-18.el6:

[root@rtt7 ~]# parted -s AppleBoot.img u s p
Backtrace has 13 calls on stack:
  13: /lib64/libparted-2.1.so.0(ped_assert+0x32) [0x3fffd734316]
  12: /lib64/libparted-2.1.so.0(ped_geometry_read+0xc8) [0x3fffd73c5dc]
  11: /lib64/libparted-2.1.so.0(hfsplus_probe+0x1ae) [0x3fffd7574fa]
  10: /lib64/libparted-2.1.so.0(ped_file_system_probe_specific+0x7e) [0x3fffd735ba6]
  9: /lib64/libparted-2.1.so.0(ped_file_system_probe+0x82) [0x3fffd73611e]
  8: /lib64/libparted-2.1.so.0(+0x51614) [0x3fffd770614]
  7: /lib64/libparted-2.1.so.0(ped_disk_probe+0xbe) [0x3fffd73bb76]
  6: /lib64/libparted-2.1.so.0(ped_disk_new+0x40) [0x3fffd73bc1c]
  5: parted() [0x80007ac4]
  4: parted(non_interactive_mode+0xa2) [0x8000e02a]
  3: parted(main+0x7e) [0x8000c26e]
  2: /lib64/libc.so.6(__libc_start_main+0x120) [0x3fffd5138c4]
  1: parted() [0x80005e72]
Aborted (core dumped)
[root@rtt7 ~]#

Verified with parted-2.1-19.el6:

[root@rtt7 ~]# parted -s AppleBoot.img u s p
Error: /root/AppleBoot.img: unrecognised disk label
[root@rtt7 ~]#

Moving to VERIFIED.
Comment 8 errata-xmlrpc 2013-02-21 10:13:31 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, and where to find the updated
files, follow the link below.

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

http://rhn.redhat.com/errata/RHBA-2013-0407.html
Note You need to log in before you can comment on or make changes to this bug.