Note: This is a beta release of Red Hat Bugzilla 5.0. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Also email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback here.
Bug 229653 - [RHEL5] [patch] cid-15 Fix memory leak in libe2p (e2p_edit_feature)
Summary: [RHEL5] [patch] cid-15 Fix memory leak in libe2p (e2p_edit_feature)
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: e2fsprogs
Version: 5.0
Hardware: All
OS: Linux
Target Milestone: ---
: ---
Assignee: Eric Sandeen
QA Contact: Jay Turner
Depends On:
Blocks: 239354
TreeView+ depends on / blocked
Reported: 2007-02-22 15:11 UTC by Bryn M. Reeves
Modified: 2018-10-19 22:54 UTC (History)
2 users (show)

Fixed In Version: RHBA-2007-0571
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2007-11-07 17:14:24 UTC
Target Upstream Version:

Attachments (Terms of Use)
Correctly free temporary buffer on return from e2p_edit_feature (deleted)
2007-02-22 15:11 UTC, Bryn M. Reeves
no flags Details | Diff

System ID Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2007:0571 normal SHIPPED_LIVE e2fsprogs bug fix update 2007-10-30 23:04:17 UTC

Description Bryn M. Reeves 2007-02-22 15:11:12 UTC
Description of problem:
Another small memory leak in e2fsprogs. This time affecting the e2p_edit_feature

A temporary buffer is allocated and never freed upon return.

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

How reproducible:

Steps to Reproduce:
1. Use an e2fsprogs command that will edit features, e.g. tune2fs -O^dir_index
2. Run the command under valgrind, e.g.:

$ valgrind --tool=memcheck --leak-check=yes ./tune2fs  -O^dir_index /tmp/img1 
==7264== Memcheck, a memory error detector.
==7264== Copyright (C) 2002-2005, and GNU GPL'd, by Julian Seward et al.
==7264== Using LibVEX rev 1575, a library for dynamic binary translation.
==7264== Copyright (C) 2004-2005, and GNU GPL'd, by OpenWorks LLP.
==7264== Using valgrind-3.1.1, a dynamic binary instrumentation framework.
==7264== Copyright (C) 2000-2005, and GNU GPL'd, by Julian Seward et al.
==7264== For more details, rerun with: -v
tune2fs 1.35 (28-Feb-2004)
==7264== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 17 from 1)
==7264== malloc/free: in use at exit: 1,349 bytes in 54 blocks.
==7264== malloc/free: 100 allocs, 46 frees, 20,422 bytes allocated.
==7264== For counts of detected errors, rerun with: -v
==7264== searching for pointers to 54 not-freed blocks.
==7264== checked 79,476 bytes.
==7264== 11 bytes in 1 blocks are definitely lost in loss record 2 of 7
==7264==    at 0x4004405: malloc (vg_replace_malloc.c:149)
==7264==    by 0x255439: e2p_edit_feature (in /lib/
==7264==    by 0x804A314: main (tune2fs.c:295)
==7264== 976 (32 direct, 944 indirect) bytes in 1 blocks are definitely lost in
loss record 3 of 7
==7264==    at 0x40056BF: calloc (vg_replace_malloc.c:279)
==7264==    by 0x25C8C6: blkid_get_cache (in /lib/
==7264==    by 0x25F194: blkid_get_devname (in /lib/
==7264==    by 0x8049487: parse_tune2fs_options (tune2fs.c:700)
==7264==    by 0x804A0FD: main (tune2fs.c:750)
==7264== LEAK SUMMARY:
==7264==    definitely lost: 43 bytes in 2 blocks.
==7264==    indirectly lost: 944 bytes in 50 blocks.
==7264==      possibly lost: 0 bytes in 0 blocks.
==7264==    still reachable: 362 bytes in 2 blocks.
==7264==         suppressed: 0 bytes in 0 blocks.
==7264== Reachable blocks (those to which a pointer was found) are not shown.
==7264== To see them, rerun with: --show-reachable=yes

Actual results:
==7264== 11 bytes in 1 blocks are definitely lost in loss record 2 of 7
==7264==    at 0x4004405: malloc (vg_replace_malloc.c:149)
==7264==    by 0x255439: e2p_edit_feature (in /lib/
==7264==    by 0x804A314: main (tune2fs.c:295)

Expected results:
No leak reported from lib/e2p/feature.c

Additional info:

Comment 1 Bryn M. Reeves 2007-02-22 15:11:13 UTC
Created attachment 148572 [details]
Correctly free temporary buffer on return from e2p_edit_feature

Comment 3 Eric Sandeen 2007-05-30 03:30:36 UTC
upstream commit at

Comment 4 Eric Sandeen 2007-05-30 17:50:32 UTC
these 2 bugs contain the same patch.

*** This bug has been marked as a duplicate of 228889 ***

Comment 5 Bryn M. Reeves 2007-05-30 18:18:24 UTC
Actually, this should be against RHEL5 e2fsprogs - it has the same problem.

Comment 6 Benjamin Kahn 2007-06-08 14:40:55 UTC
Applying a DEV_ACK for Eric Sandeen <>.  This bug
    was found by coverity and has a patch available.

Comment 7 Eric Sandeen 2007-06-21 20:45:56 UTC
move to rhel5 tracker, fix summary... need to get a  couple other acks now.

Comment 9 Eric Sandeen 2007-06-22 20:32:36 UTC
Changes committed to e2fsprogs-1.39-9.el5

Comment 14 errata-xmlrpc 2007-11-07 17:14:24 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

Note You need to log in before you can comment on or make changes to this bug.