From mboxrd@z Thu Jan 1 00:00:00 1970 From: zkabelac@sourceware.org Date: 8 Dec 2010 10:45:38 -0000 Subject: LVM2 ./WHATS_NEW lib/metadata/metadata.c Message-ID: <20101208104538.28788.qmail@sourceware.org> List-Id: To: lvm-devel@redhat.com MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit CVSROOT: /cvs/lvm2 Module name: LVM2 Changes by: zkabelac at sourceware.org 2010-12-08 10:45:37 Modified files: . : WHATS_NEW lib/metadata : metadata.c Log message: Remove reset of vg->vgmem pointer as it is access of already release memory This reset of vgmem pointer causes access of already released memory. (_vg_make_handle allocates vg from vgmem pool itself - which is a bit tricky) Interestingly this memory fault was missed by our test suite. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/WHATS_NEW.diff?cvsroot=lvm2&r1=1.1829&r2=1.1830 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/metadata/metadata.c.diff?cvsroot=lvm2&r1=1.413&r2=1.414 --- LVM2/WHATS_NEW 2010/12/06 22:13:10 1.1829 +++ LVM2/WHATS_NEW 2010/12/08 10:45:37 1.1830 @@ -1,5 +1,6 @@ Version 2.02.79 - =================================== + Fix write to released memory in vg_relase(). (2.02.78) Version 2.02.78 - 6th December 2010 =================================== --- LVM2/lib/metadata/metadata.c 2010/11/30 11:15:54 1.413 +++ LVM2/lib/metadata/metadata.c 2010/12/08 10:45:37 1.414 @@ -3094,7 +3094,6 @@ vg->name); dm_pool_destroy(vg->vgmem); - vg->vgmem = NULL; } /* This is only called by lv_from_lvid, which is only called from