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linux/fs
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Ben Hutchings 13d32f27d1 splice: Apply generic position and size checks to each write 
commit 894c6350eaad7e613ae267504014a456e00a3e2a from the 3.2-stable branch.

We need to check the position and size of file writes against various
limits, using generic_write_check().  This was not being done for
the splice write path.  It was fixed upstream by commit 8d0207652c
("->splice_write() via ->write_iter()") but we can't apply that.

CVE-2014-7822

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
[Ben fixed it in 3.2 stable, i ported it to 3.10 stable]
Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-29 10:33:57 +02:00
..
9p
aio: don't include aio.h in sched.h
2013-05-07 20:16:25 -07:00
adfs
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
affs
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
afs
aio: don't include aio.h in sched.h
2013-05-07 20:16:25 -07:00
autofs4
autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation
2015-03-18 13:22:32 +01:00
befs
befs_readdir(): do not increment ->f_pos if filldir tells us to stop
2013-05-31 15:17:56 -04:00
bfs
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
btrfs
Btrfs:__add_inode_ref: out of bounds memory read when looking for extended ref.
2015-03-18 13:22:29 +01:00
cachefiles
lift sb_start_write() out of ->write()
2013-04-09 14:12:56 -04:00
ceph
ceph: allow sync_read/write return partial successed size of read/write.
2014-01-09 12:24:25 -08:00
cifs
cifs: fix use-after-free bug in find_writable_file
2015-04-19 10:10:50 +02:00
coda
lift sb_start_write() out of ->write()
2013-04-09 14:12:56 -04:00
configfs
configfs: fix race between dentry put and lookup
2013-11-29 11:11:53 -08:00
cramfs
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
debugfs
debugfs: leave freeing a symlink body until inode eviction
2015-03-18 13:22:32 +01:00
devpts
devpts: plug the memory leak in kill_sb
2013-12-04 10:55:49 -08:00
dlm
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2013-05-01 14:08:52 -07:00
ecryptfs
eCryptfs: Remove buggy and unnecessary write in file name decode routine
2015-01-08 09:58:17 -08:00
efivarfs
efivarfs: Never return ENOENT from firmware again
2013-05-13 20:12:10 +01:00
efs
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
exofs
ore: Fix wrong math in allocation of per device BIO
2014-02-13 13:48:00 -08:00
exportfs
hlist: drop the node parameter from iterators
2013-02-27 19:10:24 -08:00
ext2
ext2: Fix oops in ext2_get_block() called from ext2_quota_write()
2014-12-16 09:09:43 -08:00
ext3
ext3: Don't check quota format when there are no quota files
2014-11-14 08:48:00 -08:00
ext4
ext4: prevent bugon on race between write/fcntl
2015-02-11 14:48:17 +08:00
f2fs
Merge tag 'f2fs-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
2013-05-08 15:11:48 -07:00
fat
fat: fix possible overflow for fat_clusters
2013-05-24 16:22:50 -07:00
freevxfs
fs: Readd the fs module aliases.
2013-03-12 18:55:21 -07:00
fscache
fs/fscache/stats.c: fix memory leak
2013-04-29 15:54:27 -07:00
fuse
fuse: notify: don't move pages
2015-03-26 15:00:57 +01:00
gfs2
GFS2: Increase i_writecount during gfs2_setattr_chown
2014-01-25 08:27:11 -08:00
hfs
hfs: avoid crash in hfs_bnode_create
2013-05-24 16:22:51 -07:00
hfsplus
hfsplus: fix B-tree corruption after insertion at position 0
2015-04-13 14:02:12 +02:00
hostfs
hostfs: use kmalloc instead of kzalloc
2013-05-04 15:48:45 -04:00
hpfs
hpfs: better test for errors
2013-07-13 11:42:26 -07:00
hppfs
hppfs: get rid of ->fsync()
2013-04-29 15:41:42 -04:00
hugetlbfs
cope with potentially long ->d_dname() output for shmem/hugetlb
2013-10-18 07:45:45 -07:00
isofs
isofs: Fix unchecked printing of ER records
2015-01-08 09:58:15 -08:00
jbd
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2013-05-03 09:56:25 -07:00
jbd2
jbd2: free bh when descriptor block checksum fails
2014-11-14 08:47:57 -08:00
jffs2
jffs2: fix handling of corrupted summary length
2015-03-06 14:40:53 -08:00
jfs
jfs: fix readdir regression
2015-04-29 10:33:57 +02:00
lockd
LOCKD: Fix a race when initialising nlmsvc_timeout
2015-01-27 07:52:33 -08:00
logfs
block: Remove bi_idx references
2013-03-23 14:15:31 -07:00
minix
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
ncpfs
ncpfs: return proper error from NCP_IOC_SETROOT ioctl
2015-01-08 09:58:17 -08:00
nfs
NFSv4.1: Fix a kfree() of uninitialised pointers in decode_cb_sequence_args
2015-03-06 14:40:50 -08:00
nfs_common
nfs_common: Update the translation between nfsv3 acls linux posix acls
2013-02-13 06:15:14 -08:00
nfsd
nfsd4: fix xdr4 inclusion of escaped char
2015-01-16 06:59:02 -08:00
nilfs2
nilfs2: fix deadlock of segment constructor during recovery
2015-03-26 15:00:59 +01:00
nls
…
notify
fsnotify: next_i is freed during fsnotify_unmount_inodes.
2015-01-27 07:52:33 -08:00
ntfs
aio: don't include aio.h in sched.h
2013-05-07 20:16:25 -07:00
ocfs2
splice: Apply generic position and size checks to each write
2015-04-29 10:33:57 +02:00
omfs
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
openpromfs
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
proc
pagemap: do not leak physical addresses to non-privileged userspace
2015-04-19 10:10:51 +02:00
pstore
pstore/ram: avoid atomic accesses for ioremapped regions
2015-02-05 22:35:40 -08:00
qnx4
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
qnx6
qnx6: qnx6_readdir() has a braino in pos calculation
2013-05-31 15:17:31 -04:00
quota
quota: provide interface for readding allocated space into reserved space
2015-01-29 17:40:57 -08:00
ramfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-02-26 20:16:07 -08:00
reiserfs
remove extra definitions of U32_MAX
2015-04-29 10:33:54 +02:00
romfs
romfs: fix nommu map length to keep inside filesystem
2013-04-29 09:17:57 +10:00
squashfs
fs: Limit sys_mount to only request filesystem modules. (Part 3)
2013-03-11 07:09:48 -07:00
sysfs
sysfs: check if one entry has been removed before freeing
2013-04-05 15:35:52 -07:00
sysv
sysv: Add forgotten superblock lock init for v7 fs
2013-10-05 07:13:09 -07:00
ubifs
UBIFS: fix free log space calculation
2014-11-14 08:47:54 -08:00
udf
udf: Verify symlink size before loading it
2015-01-08 09:58:17 -08:00
ufs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2013-04-30 09:36:50 -07:00
xfs
xfs: set superblock buffer type correctly
2015-03-06 14:40:47 -08:00
aio.c
aio: fix kernel memory disclosure in io_getevents() introduced in v3.10
2014-06-30 20:09:45 -07:00
anon_inodes.c
get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero
2013-02-26 02:46:11 -05:00
attr.c
fs,userns: Change inode_capable to capable_wrt_inode_uidgid
2014-06-16 13:42:52 -07:00
bad_inode.c
lseek: the "whence" argument is called "whence"
2012-12-17 17:15:12 -08:00
binfmt_aout.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-05-01 17:51:54 -07:00
binfmt_elf_fdpic.c
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2013-05-02 10:16:16 -07:00
binfmt_elf.c
x86, mm/ASLR: Fix stack randomization on 64-bit systems
2015-03-06 14:40:54 -08:00
binfmt_em86.c
exec: use -ELOOP for max recursion depth
2012-12-17 17:15:23 -08:00
binfmt_flat.c
new helper: read_code()
2013-04-29 15:40:23 -04:00
binfmt_misc.c
binfmt_misc: reuse string_unescape_inplace()
2013-04-30 17:04:03 -07:00
binfmt_script.c
exec: do not leave bprm->interp on stack
2012-12-20 17:40:19 -08:00
binfmt_som.c
…
bio-integrity.c
bio-integrity: Fix bio_integrity_verify segment start bug
2014-03-23 21:38:21 -07:00
bio.c
block: Fix bio_copy_data()
2013-10-05 07:13:09 -07:00
block_dev.c
writeback: Fix periodic writeback after fs mount
2013-07-28 16:29:40 -07:00
buffer.c
vfs: fix data corruption when blocksize < pagesize for mmaped data
2014-11-14 08:47:54 -08:00
char_dev.c
…
compat_binfmt_elf.c
…
compat_ioctl.c
Removed unused typedef to avoid "unused local typedef" warnings.
2013-05-04 15:03:05 -04:00
compat.c
aio: don't include aio.h in sched.h
2013-05-07 20:16:25 -07:00
coredump.c
coredump: fix the setting of PF_DUMPCORE
2014-07-31 12:53:50 -07:00
coredump.h
…
dcache.c
vfs: fix bad hashing of dentries
2014-09-17 09:04:02 -07:00
dcookies.c
fs/compat: fix lookup_dcookie() parameter handling
2014-02-13 13:48:00 -08:00
direct-io.c
Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block
2013-05-08 10:13:35 -07:00
drop_caches.c
…
eventfd.c
fs, eventfd: add procfs fdinfo helper
2012-12-17 17:15:27 -08:00
eventpoll.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2013-05-01 07:21:43 -07:00
exec.c
metag: Reduce maximum stack size to 256MB
2014-06-07 13:25:38 -07:00
fcntl.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
fhandle.c
Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linux
2012-12-20 14:04:11 -08:00
file_table.c
don't bother with {get,put}_write_access() on non-regular files
2014-05-30 21:52:12 -07:00
file.c
fs/file.c:fdtable: avoid triggering OOMs from alloc_fdmem
2014-02-22 12:41:25 -08:00
filesystems.c
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
fs_struct.c
constify path_get/path_put and fs_struct.c stuff
2013-03-01 23:51:07 -05:00
fs-writeback.c
writeback: fix a subtle race condition in I_DIRTY clearing
2015-01-16 06:59:02 -08:00
generic_acl.c
…
inode.c
fs,userns: Change inode_capable to capable_wrt_inode_uidgid
2014-06-16 13:42:52 -07:00
internal.h
splice: don't pass the address of ->f_pos to methods
2013-06-20 19:02:45 +04:00
ioctl.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
ioprio.c
block: Fix computation of merged request priority
2014-11-21 09:22:53 -08:00
Kconfig
efivarfs: Move to fs/efivarfs
2013-04-17 13:25:09 +01:00
Kconfig.binfmt
fs: make binfmt support for #! scripts modular and removable
2013-04-30 17:04:04 -07:00
libfs.c
vfs: drop vmtruncate
2012-12-20 18:46:29 -05:00
locks.c
locks: allow __break_lease to sleep even when break_time is 0
2014-05-13 13:59:44 +02:00
Makefile
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-05-01 17:51:54 -07:00
mbcache.c
…
mount.h
vfs: Is mounted should be testing mnt_ns for NULL or error.
2014-02-06 11:08:16 -08:00
mpage.c
…
namei.c
vfs: fix bad hashing of dentries
2014-09-17 09:04:02 -07:00
namespace.c
umount: Disallow unprivileged mount force
2015-01-08 09:58:16 -08:00
no-block.c
…
open.c
don't bother with {get,put}_write_access() on non-regular files
2014-05-30 21:52:12 -07:00
pipe.c
vfs: fix subtle use-after-free of pipe_inode_info
2013-12-11 22:36:26 -08:00
pnode.c
vfs: Fix invalid ida_remove() call
2013-05-31 15:16:33 -04:00
pnode.h
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-05-01 17:51:54 -07:00
posix_acl.c
posix_acl: handle NULL ACL in posix_acl_equiv_mode
2014-06-07 13:25:33 -07:00
proc_namespace.c
…
read_write.c
fs/compat: fix parameter handling for compat readv/writev syscalls
2014-02-13 13:48:00 -08:00
readdir.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
select.c
sched/rt: Move rt specific bits into new header file
2013-02-07 20:51:08 +01:00
seq_file.c
seq_file: always update file->f_pos in seq_lseek()
2013-11-13 12:05:34 +09:00
signalfd.c
switch signalfd{,4}() to COMPAT_SYSCALL_DEFINE
2013-03-03 22:58:46 -05:00
splice.c
splice: Apply generic position and size checks to each write
2015-04-29 10:33:57 +02:00
stack.c
…
stat.c
quota: provide interface for readding allocated space into reserved space
2015-01-29 17:40:57 -08:00
statfs.c
vfs: allow O_PATH file descriptors for fstatfs()
2013-10-18 07:45:44 -07:00
super.c
fs: Fix theoretical division by 0 in super_cache_scan().
2014-11-14 08:47:54 -08:00
sync.c
teach SYSCALL_DEFINE<n> how to deal with long long/unsigned long long
2013-03-03 22:46:22 -05:00
timerfd.c
compat: restore timerfd settime and gettime compat syscalls
2013-03-02 09:35:13 -05:00
utimes.c
vfs: allow utimensat() calls to retry once on an ESTALE error
2012-12-20 18:50:08 -05:00
xattr_acl.c
…
xattr.c
vfs: make lremovexattr retry once on ESTALE error
2012-12-20 18:50:11 -05:00