diff options
| author | William Roberts <william.c.roberts@intel.com> | 2016-08-30 18:28:11 +0200 |
|---|---|---|
| committer | Paul Moore <paul@paul-moore.com> | 2016-08-30 21:45:50 +0200 |
| commit | 7c686af071ade663d0995aa30b262495a6c68c88 (patch) | |
| tree | dc9d17f0b475edc7c371475a33fa8683eb3802cd /security/selinux/ss/conditional.c | |
| parent | selinux: initialize structures (diff) | |
| download | linux-7c686af071ade663d0995aa30b262495a6c68c88.tar.xz linux-7c686af071ade663d0995aa30b262495a6c68c88.zip | |
selinux: fix overflow and 0 length allocations
Throughout the SELinux LSM, values taken from sepolicy are
used in places where length == 0 or length == <saturated>
matter, find and fix these.
Signed-off-by: William Roberts <william.c.roberts@intel.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'security/selinux/ss/conditional.c')
| -rw-r--r-- | security/selinux/ss/conditional.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/security/selinux/ss/conditional.c b/security/selinux/ss/conditional.c index 456e1a9bcfde..34afeadd9e73 100644 --- a/security/selinux/ss/conditional.c +++ b/security/selinux/ss/conditional.c @@ -242,6 +242,8 @@ int cond_read_bool(struct policydb *p, struct hashtab *h, void *fp) goto err; len = le32_to_cpu(buf[2]); + if (((len == 0) || (len == (u32)-1))) + goto err; rc = -ENOMEM; key = kmalloc(len + 1, GFP_KERNEL); |