From: Eric Paris Date: Thu, 20 Feb 2014 15:56:45 +0000 (-0500) Subject: SELinux: bigendian problems with filename trans rules X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9085a6422900092886da8c404e1c5340c4ff1cbf;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git SELinux: bigendian problems with filename trans rules When writing policy via /sys/fs/selinux/policy I wrote the type and class of filename trans rules in CPU endian instead of little endian. On x86_64 this works just fine, but it means that on big endian arch's like ppc64 and s390 userspace reads the policy and converts it from le32_to_cpu. So the values are all screwed up. Write the values in le format like it should have been to start. Signed-off-by: Eric Paris Acked-by: Stephen Smalley Cc: stable@vger.kernel.org Signed-off-by: Paul Moore --- diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c index c0f498842129..9c5cdc2caaef 100644 --- a/security/selinux/ss/policydb.c +++ b/security/selinux/ss/policydb.c @@ -3338,10 +3338,10 @@ static int filename_write_helper(void *key, void *data, void *ptr) if (rc) return rc; - buf[0] = ft->stype; - buf[1] = ft->ttype; - buf[2] = ft->tclass; - buf[3] = otype->otype; + buf[0] = cpu_to_le32(ft->stype); + buf[1] = cpu_to_le32(ft->ttype); + buf[2] = cpu_to_le32(ft->tclass); + buf[3] = cpu_to_le32(otype->otype); rc = put_entry(buf, sizeof(u32), 4, fp); if (rc)