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| author | Stephen Smalley <sds@tycho.nsa.gov> | 2007-11-07 10:08:00 -0500 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2007-11-08 08:56:23 +1100 |
| commit | 45e5421eb5bbcd9efa037d682dd357284e3ef982 (patch) | |
| tree | ceb24143024fe335d08ac30fb4da9ca25fbeb6e6 /security/selinux/ss/policydb.h | |
| parent | 6d2b685564ba417f4c6d80c3661f0dfee13fff85 (diff) | |
| download | linux-stable-45e5421eb5bbcd9efa037d682dd357284e3ef982.tar.gz linux-stable-45e5421eb5bbcd9efa037d682dd357284e3ef982.tar.bz2 linux-stable-45e5421eb5bbcd9efa037d682dd357284e3ef982.zip | |
SELinux: add more validity checks on policy load
Add more validity checks at policy load time to reject malformed
policies and prevent subsequent out-of-range indexing when in permissive
mode. Resolves the NULL pointer dereference reported in
https://bugzilla.redhat.com/show_bug.cgi?id=357541.
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/selinux/ss/policydb.h')
| -rw-r--r-- | security/selinux/ss/policydb.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/security/selinux/ss/policydb.h b/security/selinux/ss/policydb.h index 844d310f4f1b..ed6fc687c66f 100644 --- a/security/selinux/ss/policydb.h +++ b/security/selinux/ss/policydb.h @@ -251,6 +251,9 @@ struct policydb { extern void policydb_destroy(struct policydb *p); extern int policydb_load_isids(struct policydb *p, struct sidtab *s); extern int policydb_context_isvalid(struct policydb *p, struct context *c); +extern int policydb_class_isvalid(struct policydb *p, unsigned int class); +extern int policydb_type_isvalid(struct policydb *p, unsigned int type); +extern int policydb_role_isvalid(struct policydb *p, unsigned int role); extern int policydb_read(struct policydb *p, void *fp); #define PERM_SYMTAB_SIZE 32 |