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android_kernel_motorola_sm6225/fs/ext4
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Theodore Ts'o c9ea4620a3 ext4: enforce the immutable flag on open files 
commit 02b016ca7f99229ae6227e7b2fc950c4e140d74a upstream.

According to the chattr man page, "a file with the 'i' attribute
cannot be modified..."  Historically, this was only enforced when the
file was opened, per the rest of the description, "... and the file
can not be opened in write mode".

There is general agreement that we should standardize all file systems
to prevent modifications even for files that were opened at the time
the immutable flag is set.  Eventually, a change to enforce this at
the VFS layer should be landing in mainline.  Until then, enforce this
at the ext4 level to prevent xfstests generic/553 from failing.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-28 08:29:29 +02:00
..
acl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
acl.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
balloc.c ext4: use ext4_warning() for sb_getblk failure 2018-08-01 12:02:31 -04:00
bitmap.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
block_validity.c ext4: use 'sbi' instead of 'EXT4_SB(sb)' 2018-01-11 13:17:49 -05:00
dir.c ext4: avoid divide by zero fault when deleting corrupted inline directories 2018-08-27 09:22:45 -04:00
ext4.h ext4: don't update s_rev_level if not required 2019-05-22 07:37:46 +02:00
ext4_extents.h ext4: verify the depth of extent tree in ext4_find_extent() 2018-06-14 12:55:10 -04:00
ext4_jbd2.c ext4: shutdown should not prevent get_write_access 2018-02-18 22:07:36 -05:00
ext4_jbd2.h ext4: fix NULL pointer dereference while journal is aborted 2019-03-27 14:14:41 +09:00
extents.c ext4: zero out the unused memory region in the extent tree block 2019-05-22 07:37:44 +02:00
extents_status.c ext4: remove NULL check before calling kmem_cache_destroy() 2018-05-20 22:44:13 -04:00
extents_status.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
file.c ext4: enforce the immutable flag on open files 2019-07-28 08:29:29 +02:00
fsmap.c ext4: make function ‘ext4_getfsmap_find_fixed_metadata’ static 2018-05-10 11:50:04 -04:00
fsmap.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
fsync.c Revert "ext4: use ext4_write_inode() when fsyncing w/o a journal" 2019-02-15 08:10:13 +01:00
hash.c ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
ialloc.c ext4: avoid declaring fs inconsistent due to invalid file handles 2019-01-09 17:38:43 +01:00
indirect.c ext4: cleanup bh release code in ext4_ind_remove_space() 2019-04-05 22:32:55 +02:00
inline.c ext4: fix a potential fiemap/page fault deadlock w/ inline_data 2019-01-16 22:04:36 +01:00
inode.c ext4: enforce the immutable flag on open files 2019-07-28 08:29:29 +02:00
ioctl.c ext4: don't allow any modifications to an immutable file 2019-07-28 08:29:28 +02:00
Kconfig fs/*/Kconfig: drop links to 404-compliant http://acl.bestbits.at 2018-01-01 12:45:37 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mballoc.c ext4: make sanity check in mballoc more strict 2019-05-22 07:37:42 +02:00
mballoc.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
migrate.c ext4: add ext4_sb_bread() to disambiguate ENOMEM cases 2019-01-09 17:38:43 +01:00
mmp.c ext4: don't mark mmp buffer head dirty 2018-09-15 17:11:25 -04:00
move_extent.c ext4: fix argument checking in EXT4_IOC_MOVE_EXT 2018-11-13 11:08:35 -08:00
namei.c ext4: fix use-after-free in dx_release() 2019-05-22 07:37:44 +02:00
page-io.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
readpage.c ext4: readpages() should submit IO as read-ahead 2018-08-17 16:20:29 -07:00
resize.c ext4: avoid drop reference to iloc.bh twice 2019-05-22 07:37:42 +02:00
super.c ext4: don't update s_rev_level if not required 2019-05-22 07:37:46 +02:00
symlink.c ext4: switch to fscrypt_get_symlink() 2018-01-11 22:10:40 -05:00
sysfs.c for-4.19/block-20180812 2018-08-14 10:23:25 -07:00
truncate.h ext4: handle layout changes to pinned DAX mappings 2018-07-29 17:00:22 -04:00
xattr.c ext4: ignore e_value_offs for xattrs with value-in-ea-inode 2019-05-22 07:37:42 +02:00
xattr.h ext4: add extra checks to ext4_xattr_block_get() 2018-03-30 20:04:11 -04:00
xattr_security.c ext4: use XATTR_CREATE in ext4_initxattrs() 2018-05-10 11:52:14 -04:00
xattr_trusted.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xattr_user.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00