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authorEric Paris <eparis@redhat.com>2008-09-03 11:49:47 -0400
committerJames Morris <jmorris@namei.org>2008-09-04 08:35:13 +1000
commit8e531af90f3940615623dc0aa6c94866a6773601 (patch)
treed618b12f26648de917cbec53677c734362e6bfc2 /security
parentec0c15afb41fd9ad45b53468b60db50170e22346 (diff)
downloadlinux-linaro-stable-8e531af90f3940615623dc0aa6c94866a6773601.tar.gz
SELinux: memory leak in security_context_to_sid_core
Fix a bug and a philosophical decision about who handles errors. security_context_to_sid_core() was leaking a context in the common case. This was causing problems on fedora systems which recently have started making extensive use of this function. In discussion it was decided that if string_to_context_struct() had an error it was its own responsibility to clean up any mess it created along the way. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security')
-rw-r--r--security/selinux/ss/services.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index b52f923ce680..d11a8154500f 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -811,11 +811,12 @@ static int string_to_context_struct(struct policydb *pol,
/* Check the validity of the new context. */
if (!policydb_context_isvalid(pol, ctx)) {
rc = -EINVAL;
- context_destroy(ctx);
goto out;
}
rc = 0;
out:
+ if (rc)
+ context_destroy(ctx);
return rc;
}
@@ -868,8 +869,7 @@ static int security_context_to_sid_core(const char *scontext, u32 scontext_len,
} else if (rc)
goto out;
rc = sidtab_context_to_sid(&sidtab, &context, sid);
- if (rc)
- context_destroy(&context);
+ context_destroy(&context);
out:
read_unlock(&policy_rwlock);
kfree(scontext2);