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selinux: Fix an uninitialized variable bug 

We removed this initialization as a cleanup but it is probably required.

The concern is that "nel" can be zero.  I'm not an expert on SELinux
code but I think it looks possible to write an SELinux policy which
triggers this bug.  GCC doesn't catch this, but my static checker does.

Fixes: 9c312e79d6 ("selinux: Delete an unnecessary variable initialisation in range_read()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Dan Carpenter 2017-03-31 18:21:18 +03:00 committed by Paul Moore
parent 342e91578e
commit cae303df3f
1 changed files with 1 additions and 1 deletions
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2
security/selinux/ss/policydb.c
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@ -1832,7 +1832,7 @@ u32 string_to_av_perm(struct policydb *p, u16 tclass, const char *name)
static int range_read(struct policydb *p, void *fp)
{
struct range_trans *rt;
struct range_trans *rt = NULL;
struct mls_range *r = NULL;
int i, rc;
__le32 buf[2];