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Dan Rosenberg 043d7866ae xfs: prevent reading uninitialized stack memory 
commit a122eb2fdf upstream.

The XFS_IOC_FSGETXATTR ioctl allows unprivileged users to read 12
bytes of uninitialized stack memory, because the fsxattr struct
declared on the stack in xfs_ioc_fsgetxattr() does not alter (or zero)
the 12-byte fsx_pad member before copying it back to the user.  This
patch takes care of it.

Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
Cc: dann frazier <dannf@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-26 17:21:30 -07:00
..
kmem.c Fix congestion_wait() sync/async vs read/write confusion 2009-07-10 20:31:53 +02:00
kmem.h xfs: prevent deadlock in xfs_qm_shake() 2009-06-01 22:59:45 -05:00
mrlock.h [XFS] shrink mrlock_t 2008-04-29 15:54:02 +10:00
sv.h remove dead code from sv_t implementation 2008-12-04 15:39:21 +11:00
time.h
xfs_acl.c xfs: fix timestamp handling in xfs_setattr 2010-04-26 07:41:15 -07:00
xfs_aops.c xfs: Non-blocking inode locking in IO completion 2010-04-26 07:41:16 -07:00
xfs_aops.h xfs: prevent unwritten extent conversion from blocking I/O completion 2009-04-06 18:42:11 +02:00
xfs_buf.c Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs 2009-08-12 08:49:35 -07:00
xfs_buf.h xfs: only issues a cache flush on unmount if barriers are enabled 2009-03-06 17:35:12 -06:00
xfs_cred.h [XFS] Fix merge failures 2008-12-29 16:47:18 +11:00
xfs_dmapi_priv.h
xfs_export.c [XFS] pass XFS_IGET_BULKSTAT to xfs_iget for handle operations 2009-01-09 15:17:17 +11:00
xfs_export.h xfs: new export ops 2007-10-22 08:13:20 -07:00
xfs_file.c Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs 2009-10-09 13:29:42 -07:00
xfs_fs_subr.c xfs: use xfs_sync_inodes() for device flushing 2009-04-06 18:44:54 +02:00
xfs_fs_subr.h [XFS] decontaminate vnode operations from behavior details 2007-10-15 16:54:29 +10:00
xfs_globals.c [XFS] remove restricted chown parameter from xfs linux 2008-10-30 18:30:48 +11:00
xfs_globals.h CRED: Separate task security context from task_struct 2008-11-14 10:39:16 +11:00
xfs_ioctl.c xfs: prevent reading uninitialized stack memory 2010-09-26 17:21:30 -07:00
xfs_ioctl.h xfs: fix dentry aliasing issues in open_by_handle 2009-01-19 14:43:18 +11:00
xfs_ioctl32.c xfs: actually enable the swapext compat handler 2009-09-01 17:00:46 -05:00
xfs_ioctl32.h [XFS] fix compile on 32 bit systems 2008-12-04 13:07:29 +11:00
xfs_iops.c xfs: Fix error return for fallocate() on XFS 2010-04-26 07:41:14 -07:00
xfs_iops.h [XFS] add a FMODE flag to make XFS invisible I/O less hacky 2008-12-11 13:14:41 +11:00
xfs_linux.h block: rename CONFIG_LBD to CONFIG_LBDAF 2009-06-19 08:08:50 +02:00
xfs_lrw.c xfs: implement ->dirty_inode to fix timestamp handling 2009-10-08 12:00:03 -05:00
xfs_lrw.h [XFS] remove sendfile leftovers 2008-04-29 16:08:14 +10:00
xfs_quotaops.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/fs/xfs/xfs 2009-10-31 12:12:49 -07:00
xfs_stats.c xfs: switch to seq_file 2009-09-15 12:29:24 -05:00
xfs_stats.h [XFS] add new btree statistics 2008-10-30 16:55:03 +11:00
xfs_super.c xfs: add a shrinker to background inode reclaim 2010-05-12 14:57:13 -07:00
xfs_super.h const: make struct super_block::s_qcop const 2009-09-22 07:17:24 -07:00
xfs_sync.c xfs: add a shrinker to background inode reclaim 2010-05-12 14:57:13 -07:00
xfs_sync.h xfs: add a shrinker to background inode reclaim 2010-05-12 14:57:13 -07:00
xfs_sysctl.c sysctl: remove "struct file *" argument of ->proc_handler 2009-09-24 07:21:04 -07:00
xfs_sysctl.h [XFS] remove restricted chown parameter from xfs linux 2008-10-30 18:30:48 +11:00
xfs_version.h
xfs_vnode.h xfs: kill VN_BAD 2009-03-16 08:25:25 +01:00
xfs_xattr.c xfs: use generic Posix ACL code 2009-06-10 17:07:47 +02:00