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Jeffrey Mitchell 6b5aeb69bb ecryptfs: fix kernel panic with null dev_name 
commit 9046625511 upstream.

When mounting eCryptfs, a null "dev_name" argument to ecryptfs_mount()
causes a kernel panic if the parsed options are valid. The easiest way to
reproduce this is to call mount() from userspace with an existing
eCryptfs mount's options and a "source" argument of 0.

Error out if "dev_name" is null in ecryptfs_mount()

Fixes: 237fead619 ("[PATCH] ecryptfs: fs/Makefile and fs/Kconfig")
Cc: stable@vger.kernel.org
Signed-off-by: Jeffrey Mitchell <jeffrey.mitchell@starlab.io>
Signed-off-by: Tyler Hicks <code@tyhicks.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-11 14:47:12 +02:00
..
crypto.c
ecryptfs: use crypto_shash_tfm_digest()
2020-05-08 15:32:15 +10:00
debug.c
Merge tag 'ecryptfs-5.3-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs
2019-07-14 19:29:04 -07:00
dentry.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
ecryptfs_kernel.h
eCryptfs: Replace deactivated email address
2020-02-14 20:07:31 +00:00
file.c
fs: compat_ioctl: move FITRIM emulation into file systems
2019-10-23 17:23:46 +02:00
inode.c
ecryptfs_lookup_interpose(): lower_dentry->d_parent is not stable either
2019-11-10 11:57:45 -05:00
Kconfig
docs: filesystems: fix renamed references
2020-04-20 15:45:22 -06:00
keystore.c
mm, treewide: rename kzfree() to kfree_sensitive()
2020-08-07 11:33:22 -07:00
kthread.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
main.c
ecryptfs: fix kernel panic with null dev_name
2021-05-11 14:47:12 +02:00
Makefile
…
messaging.c
mm, treewide: rename kzfree() to kfree_sensitive()
2020-08-07 11:33:22 -07:00
miscdev.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333
2019-06-05 17:37:06 +02:00
mmap.c
ecryptfs: drop direct calls to ->bmap
2020-02-03 08:05:57 -05:00
read_write.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
super.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00