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8a568b9562
DM_DEVICE_CREATE with table is doing several ioctl operations,
however only some of then takes parameters.
Since _create_and_load_v4() reused already existing dm task from
DM_DEVICE_RELOAD it has also kept passing its table parameters
to DM_DEVICE_RESUME ioctl - but this ioctl is supposed to not take
any argument and thus there is no wiping of passed data - and
since kernel returns buffer and shortens dmi->data_size accordingly,
anything past returned data size remained uncleared in zfree()
function.
This has problem if the user used dm_task_secure_data (i.e. cryptsetup),
as in this case binary expact secured data are erased from main memory
after use, but they may have been left in place.
This patch is also closing the possible hole for error path,
which also reuse same dm task structure for DM_DEVICE_REMOVE.
(cherry picked from commit
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| autoconf | ||
| base | ||
| conf | ||
| coverity | ||
| daemons | ||
| device_mapper | ||
| doc | ||
| include | ||
| lib | ||
| libdaemon | ||
| libdm | ||
| man | ||
| nix | ||
| po | ||
| scripts | ||
| spec | ||
| test | ||
| tools | ||
| udev | ||
| .gitignore | ||
| acinclude.m4 | ||
| aclocal.m4 | ||
| configure | ||
| configure.ac | ||
| COPYING | ||
| COPYING.BSD | ||
| COPYING.LIB | ||
| INSTALL | ||
| make.tmpl.in | ||
| Makefile.in | ||
| README | ||
| TESTING | ||
| VERSION | ||
| VERSION_DM | ||
| WHATS_NEW | ||
| WHATS_NEW_DM | ||
This tree contains the LVM2 and device-mapper tools and libraries. This is development branch, for stable 2.02 release see 2018-06-01-stable branch. For more information about LVM2 read the changelog in the WHATS_NEW file. Installation instructions are in INSTALL. There is no warranty - see COPYING and COPYING.LIB. Tarballs are available from: ftp://sourceware.org/pub/lvm2/ ftp://sources.redhat.com/pub/lvm2/ https://github.com/lvmteam/lvm2/releases The source code is stored in git: https://sourceware.org/git/?p=lvm2.git git clone git://sourceware.org/git/lvm2.git mirrored to: https://github.com/lvmteam/lvm2 git clone https://github.com/lvmteam/lvm2.git git clone git@github.com:lvmteam/lvm2.git Mailing list for general discussion related to LVM2: linux-lvm@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/linux-lvm Mailing lists for LVM2 development, patches and commits: lvm-devel@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/lvm-devel lvm2-commits@lists.fedorahosted.org (Read-only archive of commits) Subscribe from https://fedorahosted.org/mailman/listinfo/lvm2-commits Mailing list for device-mapper development, including kernel patches and multipath-tools: dm-devel@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/dm-devel Website: https://sourceware.org/lvm2/ Report upstream bugs at: https://bugzilla.redhat.com/enter_bug.cgi?product=LVM%20and%20device-mapper or open issues at: https://github.com/lvmteam/lvm2/issues The source code repository used until 7th June 2012 is accessible here: http://sources.redhat.com/cgi-bin/cvsweb.cgi/LVM2/?cvsroot=lvm2.