Archive-Team
/
zfs
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases 103 Wiki Activity
OpenZFS on Linux and FreeBSD
1,687 Commits 42 Branches 132 Tags 226 MiB
C 70.3%
Shell 19.1%
Assembly 5.1%
M4 2.4%
Python 1.8%
Other 1.3%
Go to file
Jason Zaman c9520ecc0f dmu: fix integer overflows 
The params to the functions are uint64_t, but the offsets to memcpy
/ bcopy are calculated using 32bit ints. This patch changes them to
also be uint64_t so there isnt an overflow. PaX's Size Overflow
caught this when formatting a zvol.

Gentoo bug: #546490

PAX: offset: 1ffffb000 db->db_offset: 1ffffa000 db->db_size: 2000 size: 5000
PAX: size overflow detected in function dmu_read /var/tmp/portage/sys-fs/zfs-kmod-0.6.3-r1/work/zfs-zfs-0.6.3/module/zfs/../../module/zfs/dmu.c:781 cicus.366_146 max, count: 15
CPU: 1 PID: 2236 Comm: zvol/10 Tainted: P           O   3.17.7-hardened-r1 #1
Call Trace:
 [<ffffffffa0382ee8>] ? dsl_dataset_get_holds+0x9d58/0x343ce [zfs]
 [<ffffffff81a59c88>] dump_stack+0x4e/0x7a
 [<ffffffffa0393c2a>] ? dsl_dataset_get_holds+0x1aa9a/0x343ce [zfs]
 [<ffffffff81206696>] report_size_overflow+0x36/0x40
 [<ffffffffa02dba2b>] dmu_read+0x52b/0x920 [zfs]
 [<ffffffffa0373ad1>] zrl_is_locked+0x7d1/0x1ce0 [zfs]
 [<ffffffffa0364cd2>] zil_clean+0x9d2/0xc00 [zfs]
 [<ffffffffa0364f21>] zil_commit+0x21/0x30 [zfs]
 [<ffffffffa0373fe1>] zrl_is_locked+0xce1/0x1ce0 [zfs]
 [<ffffffff81a5e2c7>] ? __schedule+0x547/0xbc0
 [<ffffffffa01582e6>] taskq_cancel_id+0x2a6/0x5b0 [spl]
 [<ffffffff81103eb0>] ? wake_up_state+0x20/0x20
 [<ffffffffa0158150>] ? taskq_cancel_id+0x110/0x5b0 [spl]
 [<ffffffff810f7ff4>] kthread+0xc4/0xe0
 [<ffffffff810f7f30>] ? kthread_create_on_node+0x170/0x170
 [<ffffffff81a62fa4>] ret_from_fork+0x74/0xa0
 [<ffffffff810f7f30>] ? kthread_create_on_node+0x170/0x170

Signed-off-by: Jason Zaman <jason@perfinion.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3333
 		2015-05-04 09:12:00 -07:00
cmd Illumos 5314 - Remove "dbuf phys" db->db_data pointer aliases in ZFS 2015-04-28 16:25:20 -07:00
config Add RHEL style kmod packages 2015-03-27 14:41:48 -07:00
contrib Add bash completions by Aneurin Price. 2014-08-06 15:03:28 -07:00
dracut Execute udevadm settle before trying to import pools 2015-03-24 13:38:55 -07:00
etc Rebuild init scripts on source file updates 2015-04-14 13:26:49 -07:00
include Illumos #5244 - zio pipeline callers should explicitly invoke next stage 2015-04-30 15:07:47 -07:00
lib Illumos #5244 - zio pipeline callers should explicitly invoke next stage 2015-04-30 15:07:47 -07:00
man Illumos 3897 - zfs filesystem and snapshot limits 2015-04-28 16:22:51 -07:00
module dmu: fix integer overflows 2015-05-04 09:12:00 -07:00
rpm Tag zfs-0.6.4 2015-04-08 20:16:45 -07:00
scripts Set zfs_autoimport_disable default value to 1 2015-02-17 16:09:41 -08:00
udev Open pools asynchronously after module load 2013-07-03 09:24:38 -07:00
.gitignore Ignore *.{deb,rpm,tar.gz} files in the top directory. 2013-04-24 16:18:59 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
AUTHORS Add a missing > to AUTHORS 2014-09-02 14:18:53 -07:00
COPYRIGHT Refresh links to web site 2013-03-06 15:46:41 -08:00
DISCLAIMER Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
META Tag zfs-0.6.4 2015-04-08 20:16:45 -07:00
Makefile.am Kernel header installation should respect --prefix 2014-10-28 09:37:06 -07:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
README.markdown Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
autogen.sh build: do not call boilerplate ourself 2013-04-02 10:55:20 -07:00
configure.ac Add RHEL style kmod packages 2015-03-27 14:41:48 -07:00
copy-builtin Consistent menuconfig name 2012-08-26 13:49:37 -07:00
zfs-script-config.sh.in Initial implementation of zed (ZFS Event Daemon) 2014-04-02 13:10:03 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.markdown

Native ZFS for Linux!

ZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the Illumos community.

ZFS on Linux, which is also known as ZoL, is currently feature complete. It includes fully functional and stable SPA, DMU, ZVOL, and ZPL layers.

Full documentation for installing ZoL on your favorite Linux distribution can be found at: http://zfsonlinux.org