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Eric Biggers 894a02236d ext4: report correct st_size for encrypted symlinks 
commit 8c4bca10ceafc43b1ca0a9fab5fa27e13cbce99e upstream.

The stat() family of syscalls report the wrong size for encrypted
symlinks, which has caused breakage in several userspace programs.

Fix this by calling fscrypt_symlink_getattr() after ext4_getattr() for
encrypted symlinks.  This function computes the correct size by reading
and decrypting the symlink target (if it's not already cached).

For more details, see the commit which added fscrypt_symlink_getattr().

Fixes: f348c252320b ("ext4 crypto: add symlink encryption")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210702065350.209646-3-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-09-08 08:48:59 +02:00
..
acl.c
ext4: main fast-commit commit path
2020-10-21 23:22:37 -04:00
acl.h
ext4: fix up remaining files with SPDX cleanups
2017-12-17 22:00:59 -05:00
balloc.c
ext4: shrink race window in ext4_should_retry_alloc()
2021-04-07 15:00:03 +02:00
bitmap.c
…
block_validity.c
ext4: rename system_blks to s_system_blks inside ext4_sb_info
2020-10-18 10:36:59 -04:00
dir.c
ext4: use generic casefolding support
2020-10-28 13:43:13 -04:00
ext4_extents.h
ext4: fix EXT_MAX_EXTENT/INDEX to check for zeroed eh_max
2020-06-03 23:16:49 -04:00
ext4_jbd2.c
ext4: fast commit recovery path
2020-10-21 23:22:38 -04:00
ext4_jbd2.h
ext4: drop ext4_journal_free_reserved()
2020-06-03 23:16:53 -04:00
ext4.h
ext4: fix memory leak in ext4_fill_super
2021-07-19 09:45:03 +02:00
extents_status.c
ext4: remove check for zero nr_to_scan in ext4_es_scan()
2021-07-14 16:55:41 +02:00
extents_status.h
ext4: fix extent_status trace points
2020-01-25 02:03:03 -05:00
extents.c
ext4: fix kernel infoleak via ext4_extent_header
2021-07-14 16:55:40 +02:00
fast_commit.c
ext4: fix fast commit alignment issues
2021-06-10 13:39:26 +02:00
fast_commit.h
ext4: fix fast commit alignment issues
2021-06-10 13:39:26 +02:00
file.c
ext4: Fix occasional generic/418 failure
2021-05-11 14:47:38 +02:00
fsmap.c
jbd2: rename j_maxlen to j_total_len and add jbd2_journal_max_txn_bufs
2020-11-06 23:01:02 -05:00
fsmap.h
ext4: fix up remaining files with SPDX cleanups
2017-12-17 22:00:59 -05:00
fsync.c
ext4: make s_mount_flags modifications atomic
2020-11-06 23:01:05 -05:00
hash.c
ext4: use generic casefolding support
2020-10-28 13:43:13 -04:00
ialloc.c
ext4: fix avefreec in find_group_orlov
2021-07-14 16:55:41 +02:00
indirect.c
ext4: use ext4_sb_bread() instead of sb_bread()
2020-10-18 10:37:14 -04:00
inline.c
ext4: fix race writing to an inline_data file while its xattrs are changing
2021-09-08 08:48:59 +02:00
inode-test.c
kunit: allow kunit tests to be loaded as a module
2020-01-09 16:42:29 -07:00
inode.c
ext4: fix overflow in ext4_iomap_alloc()
2021-07-14 16:55:40 +02:00
ioctl.c
ext4: allow the dax flag to be set and cleared on inline directories
2021-05-11 14:47:38 +02:00
Kconfig
ext: EXT4_KUNIT_TESTS should depend on EXT4_FS instead of selecting it
2021-03-04 11:38:15 +01:00
Makefile
ext4 / jbd2: add fast commit initialization
2020-10-21 23:22:26 -04:00
mballoc.c
ext4: use ext4_grp_locked_error in mb_find_extent
2021-07-14 16:55:41 +02:00
mballoc.h
ext4: limit the length of per-inode prealloc list
2020-08-19 12:04:36 -04:00
migrate.c
ext4: handle ext4_mark_inode_dirty errors
2020-06-03 23:16:50 -04:00
mmp.c
ext4: fix memory leak in ext4_fill_super
2021-07-19 09:45:03 +02:00
move_extent.c
ext4: use common helpers in all places reading metadata buffers
2020-10-18 10:37:14 -04:00
namei.c
ext4: fix potential htree corruption when growing large_dir directories
2021-08-12 13:22:14 +02:00
page-io.c
ext4: add inline encryption support
2020-07-08 10:29:43 -07:00
readpage.c
Improvements to ext4's block allocator performance for very large file
2020-08-21 11:03:38 -07:00
resize.c
ext4: use ext4_sb_bread() instead of sb_bread()
2020-10-18 10:37:14 -04:00
super.c
ext4: fix memory leak in ext4_fill_super
2021-07-19 09:45:03 +02:00
symlink.c
ext4: report correct st_size for encrypted symlinks
2021-09-08 08:48:59 +02:00
sysfs.c
ext4: shrink race window in ext4_should_retry_alloc()
2021-04-07 15:00:03 +02:00
truncate.h
ext4: handle layout changes to pinned DAX mappings
2018-07-29 17:00:22 -04:00
verity.c
ext4: fix error handling in ext4_end_enable_verity()
2021-03-25 09:04:17 +01:00
xattr_hurd.c
ext4: support xattr gnu.* namespace for the Hurd
2020-06-12 13:23:34 -04:00
xattr_security.c
ext4: use XATTR_CREATE in ext4_initxattrs()
2018-05-10 11:52:14 -04:00
xattr_trusted.c
…
xattr_user.c
…
xattr.c
ext4: add reclaim checks to xattr code
2021-03-30 14:32:08 +02:00
xattr.h
ext4: support xattr gnu.* namespace for the Hurd
2020-06-12 13:23:34 -04:00