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| author | Milan Broz <gmazyland@gmail.com> | 2014-07-29 18:41:09 +0000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2014-07-31 21:54:00 +0800 |
| commit | 4c63f83c2c2e16a13ce274ee678e28246bd33645 (patch) | |
| tree | 6f628e488975e2b74659fd9d1e5ad7c430be1f78 /crypto/af_alg.c | |
| parent | f3c400ef473e00c680ea713a66196b05870b3710 (diff) | |
| download | lwn-4c63f83c2c2e16a13ce274ee678e28246bd33645.tar.gz lwn-4c63f83c2c2e16a13ce274ee678e28246bd33645.zip | |
crypto: af_alg - properly label AF_ALG socket
Th AF_ALG socket was missing a security label (e.g. SELinux)
which means that socket was in "unlabeled" state.
This was recently demonstrated in the cryptsetup package
(cryptsetup v1.6.5 and later.)
See https://bugzilla.redhat.com/show_bug.cgi?id=1115120
This patch clones the sock's label from the parent sock
and resolves the issue (similar to AF_BLUETOOTH protocol family).
Cc: stable@vger.kernel.org
Signed-off-by: Milan Broz <gmazyland@gmail.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/af_alg.c')
| -rw-r--r-- | crypto/af_alg.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 966f893711b3..6a3ad8011585 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -21,6 +21,7 @@ #include <linux/module.h> #include <linux/net.h> #include <linux/rwsem.h> +#include <linux/security.h> struct alg_type_list { const struct af_alg_type *type; @@ -243,6 +244,7 @@ int af_alg_accept(struct sock *sk, struct socket *newsock) sock_init_data(newsock, sk2); sock_graft(sk2, newsock); + security_sk_clone(sk, sk2); err = type->accept(ask->private, sk2); if (err) { |