iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/fs
History
Michal Hocko 81be3dee96 fs/xattr.c: zero out memory copied to userspace in getxattr 
getxattr uses vmalloc to allocate memory if kzalloc fails.  This is
filled by vfs_getxattr and then copied to the userspace.  vmalloc,
however, doesn't zero out the memory so if the specific implementation
of the xattr handler is sloppy we can theoretically expose a kernel
memory.  There is no real sign this is really the case but let's make
sure this will not happen and use vzalloc instead.

Fixes: 779302e67835 ("fs/xattr.c:getxattr(): improve handling of allocation failures")
Link: http://lkml.kernel.org/r/20170306103327.2766-1-mhocko@kernel.org
Acked-by: Kees Cook <keescook@chromium.org>
Reported-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Michal Hocko <mhocko@suse.com>
Cc: <stable@vger.kernel.org>	[3.6+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:12 -07:00
..
9p
9p: Convert to separately allocated bdi
2017-04-20 12:09:55 -06:00
adfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-10-10 20:16:43 -07:00
affs
sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>
2017-03-02 08:42:31 +01:00
afs
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2017-05-02 16:40:27 -07:00
autofs4
Fix dead URLs to ftp.kernel.org
2017-03-28 16:16:52 +02:00
befs
befs: make export work with cold dcache
2017-05-05 11:35:35 +01:00
bfs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
btrfs
Merge branch 'for-4.12/block' of git://git.kernel.dk/linux-block
2017-05-01 10:39:57 -07:00
cachefiles
sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>
2017-03-02 08:42:31 +01:00
ceph
Merge branch 'for-4.12/block' of git://git.kernel.dk/linux-block
2017-05-01 10:39:57 -07:00
cifs
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
2017-05-06 11:51:46 -07:00
coda
coda: Convert to separately allocated bdi
2017-04-20 12:09:55 -06:00
configfs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
cramfs
…
crypto
A code cleanup and bugfix for fs/crypto.
2017-03-25 15:36:56 -07:00
debugfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2017-02-23 20:33:51 -08:00
devpts
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-10-10 20:16:43 -07:00
dlm
net: Work around lockdep limitation in sockets that use sockets
2017-03-09 18:23:27 -08:00
ecryptfs
ecryptfs: Convert to separately allocated bdi
2017-04-20 12:09:55 -06:00
efivarfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-10-10 20:16:43 -07:00
efs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
exofs
exofs: Convert to separately allocated bdi
2017-04-20 12:09:55 -06:00
exportfs
Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-03-03 11:38:56 -08:00
ext2
libnvdimm for 4.12
2017-05-05 18:49:20 -07:00
ext4
mm: introduce kv[mz]alloc helpers
2017-05-08 17:15:12 -07:00
f2fs
mm: introduce kv[mz]alloc helpers
2017-05-08 17:15:12 -07:00
fat
fat: fix using uninitialized fields of fat_inode/fsinfo_inode
2017-03-09 17:01:10 -08:00
freevxfs
…
fscache
KEYS: Differentiate uses of rcu_dereference_key() and user_key_payload()
2017-03-02 10:09:00 +11:00
fuse
fuse: Get rid of bdi_initialized
2017-04-20 12:09:55 -06:00
gfs2
We've got ten GFS2 patches for this merge window.
2017-05-05 13:40:20 -07:00
hfs
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-03-03 21:44:35 -08:00
hfsplus
sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>
2017-03-02 08:42:31 +01:00
hostfs
vfs: remove ".readlink = generic_readlink" assignments
2016-12-09 16:45:04 +01:00
hpfs
sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>
2017-03-02 08:42:32 +01:00
hugetlbfs
hugetlbfs: fix offset overflow in hugetlbfs mmap
2017-04-13 18:24:21 -07:00
isofs
sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>
2017-03-02 08:42:31 +01:00
jbd2
jbd2: make the whole kjournald2 kthread NOFS safe
2017-05-03 15:52:09 -07:00
jffs2
sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>
2017-03-02 08:42:32 +01:00
jfs
jfs: Remove jfs_get_inode_flags()
2017-04-19 14:21:23 +02:00
kernfs
kernfs: Check KERNFS_HAS_RELEASE before calling kernfs_release_file()
2017-03-17 10:25:59 +09:00
lockd
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>
2017-03-02 08:42:29 +01:00
minix
statx: Add a system call to make enhanced file info available
2017-03-02 20:51:15 -05:00
ncpfs
ncpfs: Convert to separately allocated bdi
2017-04-20 12:09:55 -06:00
nfs
nfs: Fix bdi handling for cloned superblocks
2017-05-04 07:57:46 -06:00
nfs_common
netns: make struct pernet_operations::id unsigned int
2016-11-18 10:59:15 -05:00
nfsd
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-05-01 19:12:53 -07:00
nilfs2
fs: Remove SB_I_DYNBDI flag
2017-04-20 12:09:55 -06:00
nls
…
notify
fanotify: don't expose EOPENSTALE to userspace
2017-04-25 15:48:06 +02:00
ntfs
sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>
2017-03-02 08:42:32 +01:00
ocfs2
fs/ocfs2/cluster: use offset_in_page() macro
2017-05-03 15:52:07 -07:00
omfs
sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>
2017-03-02 08:42:31 +01:00
openpromfs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
orangefs
Some cleanups:
2017-05-05 13:36:10 -07:00
overlayfs
overlayfs: remove now unnecessary header file include
2017-03-08 10:42:13 -08:00
proc
pidns: expose task pid_ns_for_children to userspace
2017-05-08 17:15:12 -07:00
pstore
pstore: Solve lockdep warning by moving inode locks
2017-04-27 20:35:34 -07:00
qnx4
…
qnx6
…
quota
quota: Remove dquot_quotactl_ops
2017-04-19 14:21:23 +02:00
ramfs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
reiserfs
reiserfs: use designated initializers
2017-05-08 17:15:11 -07:00
romfs
romfs: use different way to generate fsid for BLOCK or MTD
2017-01-24 16:26:14 -08:00
squashfs
fs/pstore: fs/squashfs: change usage of LZ4 to work with new LZ4 version
2017-02-24 17:46:57 -08:00
sysfs
sysfs: be careful of error returns from ops->show()
2017-04-08 17:33:32 +02:00
sysv
statx: Add a system call to make enhanced file info available
2017-03-02 20:51:15 -05:00
tracefs
…
ubifs
Merge branch 'for-4.12/block' of git://git.kernel.dk/linux-block
2017-05-01 10:39:57 -07:00
udf
udf: use kmap_atomic for memcpy copying
2017-04-24 16:28:02 +02:00
ufs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
xfs
Changes for 4.12:
2017-05-06 11:46:16 -07:00
aio.c
Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-03-03 10:16:38 -08:00
anon_inodes.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
attr.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>
2017-03-02 08:42:29 +01:00
bad_inode.c
statx: Add a system call to make enhanced file info available
2017-03-02 20:51:15 -05:00
binfmt_aout.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>
2017-03-02 08:42:36 +01:00
binfmt_elf_fdpic.c
sched/headers: Prepare to move cputime functionality from <linux/sched.h> into <linux/sched/cputime.h>
2017-03-02 08:42:39 +01:00
binfmt_elf.c
sched/headers: Prepare to move cputime functionality from <linux/sched.h> into <linux/sched/cputime.h>
2017-03-02 08:42:39 +01:00
binfmt_em86.c
…
binfmt_flat.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>
2017-03-02 08:42:36 +01:00
binfmt_misc.c
sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>
2017-03-02 08:42:37 +01:00
binfmt_script.c
…
block_dev.c
libnvdimm for 4.12
2017-05-05 18:49:20 -07:00
buffer.c
sched/headers: Prepare for the reduction of <linux/sched.h>'s signal API dependency
2017-03-02 08:42:37 +01:00
char_dev.c
chardev: add helper function to register char devs with a struct device
2017-03-21 06:44:32 +01:00
compat_binfmt_elf.c
fs/binfmt: Convert obsolete cputime type to nsecs
2017-02-01 09:13:51 +01:00
compat_ioctl.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
compat.c
fs/compat.c: trim unused includes
2017-04-17 12:52:27 -04:00
coredump.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>
2017-03-02 08:42:36 +01:00
dax.c
libnvdimm for 4.12
2017-05-05 18:49:20 -07:00
dcache.c
mnt: Protect the mountpoint hashtable with mount_lock
2017-01-10 13:34:43 +13:00
dcookies.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
direct-io.c
fs: add i_blocksize()
2017-02-27 18:43:46 -08:00
drop_caches.c
…
eventfd.c
sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>
2017-03-02 08:42:32 +01:00
eventpoll.c
epoll: Add busy poll support to epoll with socket fds.
2017-03-24 20:49:31 -07:00
exec.c
x86/arch_prctl: Add ARCH_[GET|SET]_CPUID
2017-03-20 16:10:34 +01:00
fcntl.c
fcntl: move compat syscalls from compat.c
2017-04-17 12:52:24 -04:00
fhandle.c
fhandle: move compat syscalls from compat.c
2017-04-17 12:52:26 -04:00
file_table.c
sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>
2017-03-02 08:42:31 +01:00
file.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>
2017-03-02 08:42:29 +01:00
filesystems.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
fs_pin.c
…
fs_struct.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>
2017-03-02 08:42:35 +01:00
fs-writeback.c
writeback: fix memory leak in wb_queue_work()
2017-03-13 08:27:34 -06:00
inode.c
fsnotify: Free fsnotify_mark_connector when there is no mark attached
2017-04-10 17:37:35 +02:00
internal.h
fhandle: move compat syscalls from compat.c
2017-04-17 12:52:26 -04:00
ioctl.c
sched/headers: Prepare for the reduction of <linux/sched.h>'s signal API dependency
2017-03-02 08:42:37 +01:00
iomap.c
Changes for 4.12:
2017-05-06 11:46:16 -07:00
Kconfig
dax: fix build warnings with FS_DAX and !FS_IOMAP
2017-01-24 16:26:14 -08:00
Kconfig.binfmt
docs: fix locations of several documents that got moved
2016-10-24 08:12:35 -02:00
libfs.c
Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-03-03 11:38:56 -08:00
locks.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
Makefile
logfs: remove from tree
2016-12-14 23:48:11 -05:00
mbcache.c
mbcache: document that "find" functions only return reusable entries
2016-12-03 15:55:01 -05:00
mount.h
fsnotify: Free fsnotify_mark_connector when there is no mark attached
2017-04-10 17:37:35 +02:00
mpage.c
fs: add i_blocksize()
2017-02-27 18:43:46 -08:00
namei.c
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2017-05-03 08:50:52 -07:00
namespace.c
fsnotify: Free fsnotify_mark_connector when there is no mark attached
2017-04-10 17:37:35 +02:00
no-block.c
…
nsfs.c
ns: allow ns_entries to have custom symlink content
2017-05-08 17:15:12 -07:00
open.c
open: move compat syscalls from compat.c
2017-04-17 12:52:25 -04:00
pipe.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
pnode.c
mnt: Tuck mounts under others instead of creating shadow/side mounts.
2017-02-04 00:01:06 +13:00
pnode.h
mnt: Tuck mounts under others instead of creating shadow/side mounts.
2017-02-04 00:01:06 +13:00
posix_acl.c
sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>
2017-03-02 08:42:31 +01:00
proc_namespace.c
sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>
2017-03-02 08:42:38 +01:00
read_write.c
move compat_rw_copy_check_uvector() over to fs/read_write.c
2017-04-17 12:52:26 -04:00
readdir.c
readdir: move compat syscalls from compat.c
2017-04-17 12:52:24 -04:00
select.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2017-05-02 16:40:27 -07:00
seq_file.c
mm: introduce kv[mz]alloc helpers
2017-05-08 17:15:12 -07:00
signalfd.c
…
splice.c
Merge branch 'work.splice' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-05-02 11:38:06 -07:00
stack.c
…
stat.c
Merge branch 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-05-02 11:54:26 -07:00
statfs.c
statfs: move compat syscalls from compat.c
2017-04-17 12:52:23 -04:00
super.c
bdi: Drop 'parent' argument from bdi_register[_va]()
2017-04-20 12:09:55 -06:00
sync.c
vfs: use helper for calling f_op->fsync()
2017-02-20 16:51:23 +01:00
timerfd.c
timerfd: Only check CAP_WAKE_ALARM when it is needed
2017-03-01 12:53:44 +01:00
userfaultfd.c
userfaultfd: report actual registered features in fdinfo
2017-04-08 00:47:48 -07:00
utimes.c
utimes: move compat syscalls from compat.c
2017-04-17 12:52:23 -04:00
xattr.c
fs/xattr.c: zero out memory copied to userspace in getxattr
2017-05-08 17:15:12 -07:00