diff options
author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-11-01 13:58:18 -0400 |
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committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-11-01 13:58:18 -0400 |
commit | 6e1bd1ab1d9ab8e83cdc940df82fbf8418e2593f (patch) | |
tree | f1324a39f155375221ed88db0626f61b75c51db6 /security/keys/keyctl.c | |
parent | ASoC: Store DC offset correction for wm_hubs devices in class W mode (diff) | |
parent | ASoC: Include cx20442 to SND_SOC_ALL_CODECS (diff) | |
download | linux-dev-6e1bd1ab1d9ab8e83cdc940df82fbf8418e2593f.tar.xz linux-dev-6e1bd1ab1d9ab8e83cdc940df82fbf8418e2593f.zip |
Merge branch 'for-2.6.37' into for-2.6.38
Diffstat (limited to 'security/keys/keyctl.c')
-rw-r--r-- | security/keys/keyctl.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c index b2b0998d6abd..60924f6a52db 100644 --- a/security/keys/keyctl.c +++ b/security/keys/keyctl.c @@ -1272,6 +1272,7 @@ long keyctl_session_to_parent(void) keyring_r = NULL; me = current; + rcu_read_lock(); write_lock_irq(&tasklist_lock); parent = me->real_parent; @@ -1304,7 +1305,8 @@ long keyctl_session_to_parent(void) goto not_permitted; /* the keyrings must have the same UID */ - if (pcred->tgcred->session_keyring->uid != mycred->euid || + if ((pcred->tgcred->session_keyring && + pcred->tgcred->session_keyring->uid != mycred->euid) || mycred->tgcred->session_keyring->uid != mycred->euid) goto not_permitted; @@ -1319,6 +1321,7 @@ long keyctl_session_to_parent(void) set_ti_thread_flag(task_thread_info(parent), TIF_NOTIFY_RESUME); write_unlock_irq(&tasklist_lock); + rcu_read_unlock(); if (oldcred) put_cred(oldcred); return 0; @@ -1327,6 +1330,7 @@ already_same: ret = 0; not_permitted: write_unlock_irq(&tasklist_lock); + rcu_read_unlock(); put_cred(cred); return ret; |