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Theodore Ts'o 454cf79b05 ext4: sanity check the block and cluster size at mount time 
commit 8cdf3372fe8368f56315e66bea9f35053c418093 upstream.

If the block size or cluster size is insane, reject the mount.  This
is important for security reasons (although we shouldn't be just
depending on this check).

Ref: http://www.securityfocus.com/archive/1/539661
Ref: https://bugzilla.redhat.com/show_bug.cgi?id=1332506
Reported-by: Borislav Petkov <bp@alien8.de>
Reported-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-26 09:54:52 +01:00
..
9p
posix_acl: Clear SGID bit when setting file permissions
2016-10-31 04:13:58 -06:00
adfs
…
affs
affs: fix remount failure when there are no options changed
2016-06-07 18:14:32 -07:00
afs
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autofs4
autofs: use dentry flags to block walks during expire
2016-09-30 10:18:37 +02:00
befs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
bfs
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btrfs
btrfs: qgroup: Prevent qgroup->reserved from going subzero
2016-11-18 10:48:37 +01:00
cachefiles
FS-Cache: Add missing initialization of ret in cachefiles_write_page()
2015-11-16 20:38:43 -05:00
ceph
posix_acl: Clear SGID bit when setting file permissions
2016-10-31 04:13:58 -06:00
cifs
Fix regression which breaks DFS mounting
2016-10-28 03:01:33 -04:00
coda
fs/coda: fix readlink buffer overflow
2015-09-10 13:29:01 -07:00
configfs
configfs: allow dynamic group creation
2015-11-20 16:17:32 -08:00
cramfs
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debugfs
debugfs: Make automount point inodes permanently empty
2016-05-04 14:48:41 -07:00
devpts
devpts: clean up interface to pty drivers
2016-08-16 09:30:49 +02:00
dlm
dlm: free workqueues after the connections
2016-10-22 12:26:56 +02:00
ecryptfs
ecryptfs: fix handling of directory opening
2016-09-15 08:27:47 +02:00
efivarfs
efi: Make efivarfs entries immutable by default
2016-03-03 15:07:09 -08:00
efs
…
exofs
osd fs: __r4w_get_page rely on PageUptodate for uptodate
2015-12-12 10:15:34 -08:00
exportfs
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ext2
posix_acl: Clear SGID bit when setting file permissions
2016-10-31 04:13:58 -06:00
ext4
ext4: sanity check the block and cluster size at mount time
2016-11-26 09:54:52 +01:00
f2fs
posix_acl: Clear SGID bit when setting file permissions
2016-10-31 04:13:58 -06:00
fat
fat: fix fake_offset handling on error path
2015-11-20 16:17:32 -08:00
freevxfs
freevxfs: Grammar s/an negative/a negative/
2015-08-07 13:59:24 +02:00
fscache
FS-Cache: Handle a write to the page immediately beyond the EOF marker
2015-11-11 02:11:02 -05:00
fuse
fuse: fix fuse_write_end() if zero bytes were copied
2016-11-26 09:54:52 +01:00
gfs2
posix_acl: Clear SGID bit when setting file permissions
2016-10-31 04:13:58 -06:00
hfs
hfs: fix B-tree corruption after insertion at position 0
2015-09-10 13:29:01 -07:00
hfsplus
posix_acl: Clear SGID bit when setting file permissions
2016-10-31 04:13:58 -06:00
hostfs
hostfs: Freeing an ERR_PTR in hostfs_fill_sb_common()
2016-09-30 10:18:39 +02:00
hpfs
hpfs: implement the show_options method
2016-06-01 12:15:54 -07:00
hugetlbfs
fs/hugetlbfs/inode.c: fix bugs in hugetlb_vmtruncate_list()
2016-02-25 12:01:22 -08:00
isofs
isofs: Do not return EACCES for unknown filesystems
2016-10-28 03:01:34 -04:00
jbd2
jbd2: fix incorrect unlock on j_list_lock
2016-10-28 03:01:35 -04:00
jffs2
posix_acl: Clear SGID bit when setting file permissions
2016-10-31 04:13:58 -06:00
jfs
posix_acl: Clear SGID bit when setting file permissions
2016-10-31 04:13:58 -06:00
kernfs
kernfs: don't depend on d_find_any_alias() when generating notifications
2016-09-24 10:07:36 +02:00
lockd
Mainly smaller bugfixes and cleanup. We're still finding some bugs from
2015-11-11 20:11:28 -08:00
logfs
mm, fs: introduce mapping_gfp_constraint()
2015-11-06 17:50:42 -08:00
minix
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
ncpfs
ncpfs: fix a braino in OOM handling in ncp_fill_cache()
2016-03-16 08:42:59 -07:00
nfs
NFSv4.2: Fix a reference leak in nfs42_proc_layoutstats_generic
2016-10-28 03:01:31 -04:00
nfs_common
lockd: NLM grace period shouldn't block NFSv4 opens
2015-08-13 10:22:06 -04:00
nfsd
nfsd: Close race between nfsd4_release_lockowner and nfsd4_lock
2016-09-24 10:07:36 +02:00
nilfs2
fs/nilfs2: fix potential underflow in call to crc32_le
2016-08-10 11:49:25 +02:00
nls
…
notify
fanotify: fix list corruption in fanotify_get_response()
2016-09-30 10:18:37 +02:00
ntfs
mm, fs: introduce mapping_gfp_constraint()
2015-11-06 17:50:42 -08:00
ocfs2
posix_acl: Clear SGID bit when setting file permissions
2016-10-31 04:13:58 -06:00
omfs
…
openpromfs
…
overlayfs
ovl: fsync after copy-up
2016-11-10 16:36:34 +01:00
proc
mm: introduce get_task_exe_file
2016-09-24 10:07:36 +02:00
pstore
pstore/ram: Use memcpy_fromio() to save old buffer
2016-10-28 03:01:27 -04:00
qnx4
…
qnx6
…
quota
quota: Fix possible GPF due to uninitialised pointers
2016-04-12 09:08:56 -07:00
ramfs
mm, fs: obey gfp_mapping for add_to_page_cache()
2015-10-16 11:42:28 -07:00
reiserfs
posix_acl: Clear SGID bit when setting file permissions
2016-10-31 04:13:58 -06:00
romfs
…
squashfs
squashfs: xattr simplifications
2015-11-13 20:34:33 -05:00
sysfs
sysfs: correctly handle read offset on PREALLOC attrs
2016-09-07 08:32:46 +02:00
sysv
fix sysvfs symlinks
2015-11-23 21:11:08 -05:00
tracefs
tracefs: Fix refcount imbalance in start_creating()
2015-11-04 22:13:45 -05:00
ubifs
ubifs: Fix regression in ubifs_readdir()
2016-11-10 16:36:33 +01:00
udf
udf: Check output buffer length when converting name to CS0
2016-02-25 12:01:18 -08:00
ufs
fix ufs write vs readpage race when writing into a hole
2015-09-09 10:43:12 -07:00
xfs
libxfs: clean up _calc_dquots_per_chunk
2016-11-10 16:36:32 +01:00
aio.c
aio: mark AIO pseudo-fs noexec
2016-10-07 15:23:47 +02:00
anon_inodes.c
…
attr.c
vfs: move permission checking into notify_change() for utimes(NULL)
2016-10-22 12:26:56 +02:00
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
libnvdimm for 4.4:
2015-11-10 12:07:22 -08:00
binfmt_elf.c
Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-11-11 09:45:24 -08:00
binfmt_em86.c
…
binfmt_flat.c
…
binfmt_misc.c
…
binfmt_script.c
…
block_dev.c
block: detach bdev inode from its wb in __blkdev_put()
2015-12-04 11:02:17 -07:00
buffer.c
vfs: remove unused wrapper block_page_mkwrite()
2015-11-11 02:19:33 -05:00
char_dev.c
fs/char_dev.c: fix incorrect documentation for unregister_chrdev_region
2015-08-05 13:49:35 -07:00
compat_binfmt_elf.c
…
compat_ioctl.c
i2c-dev: Fix typo in ioctl name reference
2015-10-23 23:26:43 +02:00
compat.c
…
coredump.c
coredump: fix unfreezable coredumping task
2016-11-18 10:48:34 +01:00
dax.c
dax: disable pmd mappings
2015-11-16 23:54:45 -08:00
dcache.c
fs/dcache.c: avoid soft-lockup in dput()
2016-08-16 09:30:50 +02:00
dcookies.c
…
direct-io.c
block: fix use-after-free in dio_bio_complete
2016-03-03 15:07:28 -08:00
drop_caches.c
inode: convert inode_sb_list_lock to per-sb
2015-08-17 18:39:46 -04:00
eventfd.c
…
eventpoll.c
…
exec.c
vfs: Commit to never having exectuables on proc and sysfs.
2015-07-10 10:39:25 -05:00
fcntl.c
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fhandle.c
fs/coredump: prevent fsuid=0 dumps into user-controlled directories
2016-04-12 09:08:58 -07:00
file_table.c
fs, file table: reinit files_stat.max_files after deferred memory initialisation
2015-08-07 04:39:40 +03:00
file.c
vfs: clear remainder of 'full_fds_bits' in dup_fd()
2015-11-05 23:05:32 -08:00
filesystems.c
…
fs_pin.c
…
fs_struct.c
…
fs-writeback.c
writeback, cgroup: fix use of the wrong bdi_writeback which mismatches the inode
2016-04-12 09:09:04 -07:00
inode.c
vfs: fix deadlock in file_remove_privs() on overlayfs
2016-08-10 11:49:30 +02:00
internal.h
inode: rename i_wb_list to i_io_list
2015-08-17 23:38:10 -04:00
ioctl.c
…
Kconfig
dax: disable pmd mappings
2015-11-16 23:54:45 -08:00
Kconfig.binfmt
…
libfs.c
fs: Set the size of empty dirs to 0.
2015-08-12 15:28:45 -05:00
locks.c
locks: use file_inode()
2016-08-10 11:49:27 +02:00
Makefile
ext4: promote ext4 over ext2 in the default probe order
2015-10-15 10:33:21 -04:00
mbcache.c
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mount.h
…
mpage.c
mm, fs: introduce mapping_gfp_constraint()
2015-11-06 17:50:42 -08:00
namei.c
fs: Check for invalid i_uid in may_follow_link()
2016-09-15 08:27:49 +02:00
namespace.c
namespace: update event counter when umounting a deleted dentry
2016-08-10 11:49:27 +02:00
no-block.c
…
nsfs.c
fs/seq_file: convert int seq_vprint/seq_printf/etc... returns to void
2015-09-11 15:21:34 -07:00
open.c
vfs: add vfs_select_inode() helper
2016-05-18 17:06:48 -07:00
pipe.c
pipe: limit the per-user amount of pages allocated in pipes
2016-06-07 18:14:35 -07:00
pnode.c
propogate_mnt: Handle the first propogated copy being a slave
2016-05-11 11:21:19 +02:00
pnode.h
mnt: Clarify and correct the disconnect logic in umount_tree
2015-07-22 20:33:27 -05:00
posix_acl.c
posix_acl: Clear SGID bit when setting file permissions
2016-10-31 04:13:58 -06:00
proc_namespace.c
vfs: show_vfsstat: do not ignore errors from show_devname method
2016-04-12 09:08:55 -07:00
read_write.c
…
readdir.c
…
select.c
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seq_file.c
fs/seq_file: fix out-of-bounds read
2016-09-07 08:32:43 +02:00
signalfd.c
signalfd: fix information leak in signalfd_copyinfo
2015-08-07 04:39:40 +03:00
splice.c
splice: handle zero nr_pages in splice_to_pipe()
2016-04-12 09:08:55 -07:00
stack.c
…
stat.c
fs/stat.c: remove unnecessary new_valid_dev() check
2015-11-09 15:11:24 -08:00
statfs.c
…
super.c
fs/super.c: fix race between freeze_super() and thaw_super()
2016-10-28 03:01:32 -04:00
sync.c
fs/sync.c: make sync_file_range(2) use WB_SYNC_NONE writeback
2015-11-06 17:50:42 -08:00
timerfd.c
timerfd: Handle relative timers with CONFIG_TIME_LOW_RES proper
2016-02-25 12:01:25 -08:00
userfaultfd.c
userfaultfd: don't block on the last VM updates at exit time
2016-03-16 08:43:01 -07:00
utimes.c
vfs: move permission checking into notify_change() for utimes(NULL)
2016-10-22 12:26:56 +02:00
xattr.c
9p: xattr simplifications
2015-11-13 20:34:33 -05:00