Eric Biggers 18026d8668 KEYS: reject NULL restriction string when type is specified ...

keyctl_restrict_keyring() allows through a NULL restriction when the
"type" is non-NULL, which causes a NULL pointer dereference in
asymmetric_lookup_restriction() when it calls strcmp() on the
restriction string.

But no key types actually use a "NULL restriction" to mean anything, so
update keyctl_restrict_keyring() to reject it with EINVAL.

Reported-by: syzbot <syzkaller@googlegroups.com>
Fixes: 97d3aa0f3134 ("KEYS: Add a lookup_restriction function for the asymmetric key type")
Cc: <stable@vger.kernel.org> # v4.12+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>

2017-12-08 15:13:29 +00:00

..

encrypted-keys

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

big_key.c

KEYS: Fix race between updating and finding a negative key

2017-10-18 09:12:40 +01:00

compat_dh.c

KEYS: DH: validate __spare field

2017-07-14 11:01:38 +10:00

compat.c

KEYS: add SP800-56A KDF support for DH

2017-04-04 22:33:38 +01:00

dh.c

KEYS: DH: validate __spare field

2017-07-14 11:01:38 +10:00

gc.c

Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-25 08:37:16 -10:00

internal.h

security: keys: Replace time_t/timespec with time64_t

2017-11-15 16:38:45 +00:00

Kconfig

security/keys: BIG_KEY requires CONFIG_CRYPTO

2017-10-18 09:12:40 +01:00

key.c

security: keys: remove redundant assignment to key_ref

2017-12-08 15:13:29 +00:00

keyctl.c

KEYS: reject NULL restriction string when type is specified

2017-12-08 15:13:29 +00:00

keyring.c

security: keys: Replace time_t/timespec with time64_t

2017-11-15 16:38:45 +00:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

permission.c

security: keys: Replace time_t/timespec with time64_t

2017-11-15 16:38:45 +00:00

persistent.c

sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>

2017-03-02 08:42:31 +01:00

proc.c

security: keys: Replace time_t/timespec with time64_t

2017-11-15 16:38:45 +00:00

process_keys.c

security: keys: Replace time_t/timespec with time64_t

2017-11-15 16:38:45 +00:00

request_key_auth.c

KEYS: Fix race between updating and finding a negative key

2017-10-18 09:12:40 +01:00

request_key.c

KEYS: add missing permission check for request_key() destination

2017-12-08 15:13:27 +00:00

sysctl.c

security: Convert use of typedef ctl_table to struct ctl_table

2014-04-15 13:39:58 +10:00

trusted.c

KEYS: trusted: fix writing past end of buffer in trusted_read()

2017-11-02 20:58:07 +11:00

trusted.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

user_defined.c

KEYS: Fix race between updating and finding a negative key

2017-10-18 09:12:40 +01:00