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Eric Biggers af3cf928b9 ubifs: report correct st_size for encrypted symlinks 
commit 064c734986011390b4d111f1a99372b7f26c3850 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 ubifs_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: ca7f85be8d ("ubifs: Add support for encrypted symlinks")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210702065350.209646-5-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2021-09-12 08:56:39 +02:00
..
Kconfig ubifs: Add support for zstd compression. 2019-07-08 19:43:53 +02:00
Makefile fscrypt: remove filesystem specific build config option 2019-01-23 23:56:43 -05:00
auth.c ubifs: Fix memleak in ubifs_init_authentication 2021-03-04 10:26:25 +01:00
budget.c ubifs: Limit the number of pages in shrink_liability 2019-08-22 17:25:33 +02:00
commit.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
compress.c ubifs: Add support for zstd compression. 2019-07-08 19:43:53 +02:00
crypto.c fscrypt: introduce fscrypt_decrypt_block_inplace() 2019-05-28 10:27:53 -07:00
debug.c ubifs: dent: Fix some potential memory leaks while iterating entries 2020-11-05 11:43:32 +01:00
debug.h Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
dir.c ubifs: Set/Clear I_LINKABLE under i_lock for whiteout inode 2021-07-20 16:10:50 +02:00
file.c ubifs: report correct st_size for encrypted symlinks 2021-09-12 08:56:39 +02:00
find.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
gc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
io.c ubifs: wbuf: Don't leak kernel memory to flash 2020-12-30 11:51:40 +01:00
ioctl.c ubifs: Fix FS_IOC_SETFLAGS unexpectedly clearing encrypt flag 2020-02-11 04:35:20 -08:00
journal.c ubifs: journal: Make sure to not dirty twice for auth nodes 2020-11-05 11:43:32 +01:00
key.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
log.c ubifs: remove unnecessary check in ubifs_log_start_commit 2019-07-08 19:43:51 +02:00
lprops.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
lpt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
lpt_commit.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
master.c ubifs: support offline signed images 2019-07-08 19:43:52 +02:00
misc.c ubifs: Allow setting assert action as mount parameter 2018-08-15 00:25:21 +02:00
misc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
orphan.c ubifs: xattr: Fix some potential memory leaks while iterating entries 2020-11-05 11:43:32 +01:00
recovery.c ubifs: Fix typo of output in get_cs_sqnum 2019-07-08 19:43:43 +02:00
replay.c ubifs: Only check replay with inode type to judge if inode linked 2021-05-11 14:04:14 +02:00
sb.c ubifs: Fix wrong memory allocation 2020-02-11 04:35:20 -08:00
scan.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
shrinker.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
super.c ubifs: Fix races between xattr_{set|get} and listxattr operations 2021-07-19 08:53:16 +02:00
tnc.c ubifs: xattr: Fix some potential memory leaks while iterating entries 2020-11-05 11:43:32 +01:00
tnc_commit.c ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps 2020-01-09 10:20:06 +01:00
tnc_misc.c ubifs: Fix memory leak in read_znode() error path 2019-09-15 22:11:18 +02:00
ubifs-media.h ubifs: Add support for zstd compression. 2019-07-08 19:43:53 +02:00
ubifs.h ubifs: Fix races between xattr_{set|get} and listxattr operations 2021-07-19 08:53:16 +02:00
xattr.c ubifs: Fix races between xattr_{set|get} and listxattr operations 2021-07-19 08:53:16 +02:00