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bb491ce67a
linux/fs/gfs2
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Andreas Gruenbacher bb491ce67a gfs2: Check for the end of metadata in punch_hole 
When punching a hole or truncating an inode down to a given size, also
check if the truncate point / start of the hole is within the range we
have metadata for.  Otherwise, we can end up freeing blocks that
shouldn't be freed, corrupting the inode, or crashing the machine when
trying to punch a hole into the void.

When growing an inode via truncate, we set the new size but we don't
allocate additional levels of indirect blocks and grow the inode height.
When shrinking that inode again, the new size may still point beyond the
end of the inode's metadata.

Fixes xfstest generic/476.

Debugged-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
2018-03-23 11:43:02 -07:00
..
acl.c gfs2: Always update inode ctime in set_acl 2017-09-25 12:33:19 -05:00
acl.h gfs2: Switch to generic xattr handlers 2016-05-12 22:28:05 -04:00
aops.c GFS2: Only set PageChecked for jdata pages 2018-03-08 09:26:20 -07:00
bmap.c gfs2: Check for the end of metadata in punch_hole 2018-03-23 11:43:02 -07:00
bmap.h gfs2: Implement fallocate(FALLOC_FL_PUNCH_HOLE) 2018-01-18 21:15:58 +01:00
dentry.c gfs2: Lock holder cleanup 2016-06-27 09:47:09 -05:00
dir.c gfs2: Dirty source inode during rename 2018-03-08 09:26:20 -07:00
dir.h GFS2: Make rename not save dirent location 2014-10-01 14:06:15 +01:00
export.c gfs2: Get rid of gfs2_ilookup 2016-06-27 09:47:08 -05:00
file.c gfs2: Fix fallocate chunk size 2018-03-08 09:26:20 -07:00
gfs2.h
glock.c gfs2: Glock dump performance regression fix 2018-02-01 11:27:11 -07:00
glock.h gfs2: gfs2_evict_inode: Put glocks asynchronously 2017-08-10 10:45:21 -05:00
glops.c GFS2: Log the reason for log flushes in every log header 2018-01-23 07:39:20 -07:00
glops.h GFS2: update freeze code to use freeze/thaw_super on all nodes 2014-11-17 10:36:39 +00:00
incore.h gfs2: Get rid of gfs2_log_header_in 2018-01-22 07:06:15 -07:00
inode.c gfs2: Dirty source inode during rename 2018-03-08 09:26:20 -07:00
inode.h gfs2: Implement SEEK_HOLE / SEEK_DATA via iomap 2017-10-31 14:26:35 +01:00
Kconfig gfs2: Fix the crc32c dependency 2018-02-01 11:25:31 -07:00
lock_dlm.c gfs2: Add a few missing newlines in messages 2018-01-30 10:32:30 -07:00
log.c GFS2: Make function gfs2_remove_from_ail static 2018-03-08 09:26:20 -07:00
log.h GFS2: Make function gfs2_remove_from_ail static 2018-03-08 09:26:20 -07:00
lops.c GFS2: Fix minor comment typo 2018-01-25 10:18:06 -07:00
lops.h GFS2: Introduce new gfs2_log_header_v2 2018-01-23 07:38:53 -07:00
main.c gfs2: Fix wrong error handling in init_gfs2_fs() 2017-11-27 10:47:22 -06:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
meta_io.c Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block 2017-09-07 11:59:42 -07:00
meta_io.h GFS2: Refactor gfs2_remove_from_journal 2016-05-06 11:27:27 -05:00
ops_fstype.c GFS2: Log the reason for log flushes in every log header 2018-01-23 07:39:20 -07:00
quota.c GFS2: Log the reason for log flushes in every log header 2018-01-23 07:39:20 -07:00
quota.h gfs2: Fix fallocate chunk size 2018-03-08 09:26:20 -07:00
recovery.c GFS2: Introduce new gfs2_log_header_v2 2018-01-23 07:38:53 -07:00
recovery.h GFS2: Fix gfs2_replay_incr_blk for multiple journal sizes 2016-07-21 13:02:44 -05:00
rgrp.c gfs2: Add a few missing newlines in messages 2018-01-30 10:32:30 -07:00
rgrp.h GFS2: Non-recursive delete 2017-04-19 08:25:43 -04:00
super.c gfs2: Remove inode from ordered write list in gfs2_write_inode() 2018-01-30 10:00:27 -07:00
super.h GFS2: update freeze code to use freeze/thaw_super on all nodes 2014-11-17 10:36:39 +00:00
sys.c gfs2: Add a few missing newlines in messages 2018-01-30 10:32:30 -07:00
sys.h
trace_gfs2.h gfs2: gfs2_iomap_end tracepoint: log block address 2018-03-15 07:17:17 -07:00
trans.c GFS2: Log the reason for log flushes in every log header 2018-01-23 07:39:20 -07:00
trans.h GFS2: Split gfs2_trans_add_bh() into two 2013-01-29 10:28:04 +00:00
util.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
util.h GFS2: Fix up some sparse warnings 2017-08-25 18:47:18 -05:00
xattr.c gfs2: Allow gfs2_xattr_set to be called with the glock held 2017-10-31 14:26:59 +01:00
xattr.h gfs2: Remove gfs2_xattr_acl_chmod 2015-12-06 21:25:17 -05:00