AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/Documentation/filesystems
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Nick Piggin 955eff5acc [PATCH] fs: fix libfs data leak 
simple_prepare_write leaks uninitialised kernel data.  This happens because
the it leaves an uninitialised "hole" over the part of the page that the
write is expected to go to.  This is fine, but it then marks the page
uptodate, which means a concurrent read can come in and copy the
uninitialised memory into userspace before it written to.

Fix it by simply marking it uptodate in simple_commit_write instead, after
the hole has been filled in.  This could theoretically break an fs that
uses simple_prepare_write and not simple_commit_write, and that relies on
the incorrect simple_prepare_write behaviour.  Luckily, none of those
exists in the tree.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-20 17:10:15 -08:00
..
configfs Fix typos in /Documentation : 'U-Z' 2006-11-30 04:58:40 +01:00
9p.txt 9p: implement optional loose read cache 2007-02-18 10:16:10 -06:00
00-INDEX 9p: implement optional loose read cache 2007-02-18 10:16:10 -06:00
adfs.txt Fix typos in /Documentation : 'U-Z' 2006-11-30 04:58:40 +01:00
affs.txt [PATCH] kernel Doc/ URL corrections 2005-11-22 09:14:30 -08:00
afs.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
automount-support.txt VFS: Unexport do_kern_mount() and clean up simple_pin_fs() 2006-06-09 09:34:16 -04:00
befs.txt Fix typos in Documentation/: 'Q'-'R' 2006-10-03 22:54:15 +02:00
bfs.txt [PATCH] update Tigran's email addresses 2006-12-13 09:05:53 -08:00
cifs.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
coda.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cramfs.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dentry-locking.txt [PATCH] VFS: split dentry locking documentation 2005-11-07 07:53:56 -08:00
directory-locking Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
dlmfs.txt Fix typos in Documentation/: 'D'-'E' 2006-10-03 22:47:42 +02:00
Exporting Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ext2.txt Fix typos in Documentation/: 'N'-'P' 2006-10-03 22:52:05 +02:00
ext3.txt [PATCH] ext3: Add "-o bh" option 2006-06-26 09:58:20 -07:00
ext4.txt [PATCH] Documentation/filesystems/ext4.txt 2006-10-11 11:14:19 -07:00
files.txt Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
fuse.txt [PATCH] fuse: fix typo 2006-12-30 10:56:45 -08:00
gfs2.txt [GFS2] Update documentation 2006-04-25 15:44:04 -04:00
hfs.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hpfs.txt Fix typos in /Documentation : 'U-Z' 2006-11-30 04:58:40 +01:00
inotify.txt [PATCH] inotify (5/5): update kernel documentation 2006-06-20 05:25:19 -04:00
isofs.txt It's UTF-8 2006-03-22 00:13:35 +01:00
jfs.txt It's UTF-8 2006-03-22 00:13:35 +01:00
Locking [PATCH] NFS: Fix race in nfs_release_page() 2007-01-11 18:18:21 -08:00
ncpfs.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ntfs.txt NTFS: 2.1.28 - Fix deadlock reported by Sergey Vlasov due to ntfs_put_inode(). 2007-01-18 09:42:48 +00:00
ocfs2.txt ocfs2: update mount option documentation 2006-12-07 17:48:41 -08:00
porting [PATCH] VFS: Permit filesystem to override root dentry on mount 2006-06-23 07:42:45 -07:00
proc.txt Fix typos in /Documentation : 'U-Z' 2006-11-30 04:58:40 +01:00
ramfs-rootfs-initramfs.txt [PATCH] Initramfs docs update 2006-06-25 10:01:21 -07:00
relay.txt [PATCH] Relay: add CPU hotplug support 2007-02-11 10:51:28 -08:00
romfs.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
smbfs.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
spufs.txt Fix typos in /Documentation : 'U-Z' 2006-11-30 04:58:40 +01:00
sysfs-pci.txt Fix typos concerning hierarchy 2007-02-17 19:23:03 +01:00
sysfs.txt Fix typos in Documentation/: 'D'-'E' 2006-10-03 22:47:42 +02:00
sysv-fs.txt [PATCH] fs/sysv/: doc cleanup 2006-12-07 08:39:44 -08:00
tmpfs.txt Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
udf.txt [PATCH] Update udf documentation to reflect current state of read/write support 2006-11-16 11:43:38 -08:00
ufs.txt [PATCH] ufs2 write: mount as rw 2007-02-12 09:48:40 -08:00
vfat.txt Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
vfs.txt [PATCH] fs: fix libfs data leak 2007-02-20 17:10:15 -08:00
xfs.txt [XFS] Update XFS documentation. 2005-11-03 13:46:43 +11:00
xip.txt [PATCH] xip: description 2005-06-24 00:06:42 -07:00