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| author | Jan Kara <jack@suse.cz> | 2012-01-03 13:14:29 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-03 16:12:19 -0800 |
| commit | 30e053248da178cf6154bb7e950dc8713567e3fa (patch) | |
| tree | 3ef4cb7f85f581fe53361ea0eb2586a8b6e696c2 | |
| parent | 4376eee92e5a8332b470040e672ea99cd44c826a (diff) | |
| download | linux-30e053248da178cf6154bb7e950dc8713567e3fa.tar.gz linux-30e053248da178cf6154bb7e950dc8713567e3fa.tar.bz2 linux-30e053248da178cf6154bb7e950dc8713567e3fa.zip | |
security: Fix security_old_inode_init_security() when CONFIG_SECURITY is not set
Commit 1e39f384bb01 ("evm: fix build problems") makes the stub version
of security_old_inode_init_security() return 0 when CONFIG_SECURITY is
not set.
But that makes callers such as reiserfs_security_init() assume that
security_old_inode_init_security() has set name, value, and len
arguments properly - but security_old_inode_init_security() left them
uninitialized which then results in interesting failures.
Revert security_old_inode_init_security() to the old behavior of
returning EOPNOTSUPP since both callers (reiserfs and ocfs2) handle this
just fine.
[ Also fixed the S_PRIVATE(inode) case of the actual non-stub
security_old_inode_init_security() function to return EOPNOTSUPP
for the same reason, as pointed out by Mimi Zohar.
It got incorrectly changed to match the new function in commit
fb88c2b6cbb1: "evm: fix security/security_old_init_security return
code". - Linus ]
Reported-by: Jorge Bastos <mysql.jorge@decimal.pt>
Acked-by: James Morris <jmorris@namei.org>
Acked-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/security.h | 2 | ||||
| -rw-r--r-- | security/security.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/security.h b/include/linux/security.h index 19d8e04e1688..e8c619d39291 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -2056,7 +2056,7 @@ static inline int security_old_inode_init_security(struct inode *inode, char **name, void **value, size_t *len) { - return 0; + return -EOPNOTSUPP; } static inline int security_inode_create(struct inode *dir, diff --git a/security/security.c b/security/security.c index 0c6cc69c8f86..e2f684aeb70c 100644 --- a/security/security.c +++ b/security/security.c @@ -381,7 +381,7 @@ int security_old_inode_init_security(struct inode *inode, struct inode *dir, void **value, size_t *len) { if (unlikely(IS_PRIVATE(inode))) - return 0; + return -EOPNOTSUPP; return security_ops->inode_init_security(inode, dir, qstr, name, value, len); } |