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97826c821e
kernel-ark/security/keys
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David Howells 97826c821e KEYS: Fix error handling in big_key instantiation 
In the big_key_instantiate() function we return 0 if kernel_write() returns us
an error rather than returning an error.  This can potentially lead to
dentry_open() giving a BUG when called from big_key_read() with an unset
tmpfile path.

	------------[ cut here ]------------
	kernel BUG at fs/open.c:798!
	...
	RIP: 0010:[<ffffffff8119bbd1>] dentry_open+0xd1/0xe0
	...
	Call Trace:
	 [<ffffffff812350c5>] big_key_read+0x55/0x100
	 [<ffffffff81231084>] keyctl_read_key+0xb4/0xe0
	 [<ffffffff81231e58>] SyS_keyctl+0xf8/0x1d0
	 [<ffffffff815bb799>] system_call_fastpath+0x16/0x1b


Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Stephen Gallagher <sgallagh@redhat.com>
2013-11-13 16:51:06 +00:00
..
encrypted-keys KEYS: Add payload preparsing opportunity prior to key instantiate or update 2012-10-08 13:49:48 +10:30
big_key.c KEYS: Fix error handling in big_key instantiation 2013-11-13 16:51:06 +00:00
compat.c KEYS: Add per-user_namespace registers for persistent per-UID kerberos caches 2013-09-24 10:35:19 +01:00
gc.c KEYS: Expand the capacity of a keyring 2013-09-24 10:35:18 +01:00
internal.h KEYS: Add per-user_namespace registers for persistent per-UID kerberos caches 2013-09-24 10:35:19 +01:00
Kconfig KEYS: Make BIG_KEYS boolean 2013-10-30 11:15:23 +00:00
key.c KEYS: Fix a race between negating a key and reading the error set 2013-10-30 11:15:24 +00:00
keyctl.c KEYS: Add per-user_namespace registers for persistent per-UID kerberos caches 2013-09-24 10:35:19 +01:00
keyring.c KEYS: Fix keyring quota misaccounting on key replacement and unlink 2013-10-30 11:15:24 +00:00
Makefile KEYS: Add per-user_namespace registers for persistent per-UID kerberos caches 2013-09-24 10:35:19 +01:00
permission.c userns: Convert security/keys to the new userns infrastructure 2012-09-13 18:28:02 -07:00
persistent.c KEYS: Fix UID check in keyctl_get_persistent() 2013-11-06 14:01:51 +00:00
proc.c KEYS: Introduce a search context structure 2013-09-24 10:35:15 +01:00
process_keys.c KEYS: initialize root uid and session keyrings early 2013-09-25 17:17:01 +01:00
request_key_auth.c KEYS: Search for auth-key by name rather than target key ID 2013-09-24 10:35:16 +01:00
request_key.c KEYS: Fix a race between negating a key and reading the error set 2013-10-30 11:15:24 +00:00
sysctl.c KEYS: Add per-user_namespace registers for persistent per-UID kerberos caches 2013-09-24 10:35:19 +01:00
trusted.c Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
trusted.h trusted-keys: rename trusted_defined files to trusted 2011-01-24 10:14:22 +11:00
user_defined.c KEYS: Introduce a search context structure 2013-09-24 10:35:15 +01:00