diff options
| author | Tom Rix <trix@redhat.com> | 2021-12-24 16:07:39 +0100 |
|---|---|---|
| committer | Paul Moore <paul@paul-moore.com> | 2021-12-27 16:41:20 +0100 |
| commit | 732bc2ff080c447f8524f40c970c481f5da6eed3 (patch) | |
| tree | 67fb464fe0aa6eeff99dd09d704089b9158627d2 /security/selinux | |
| parent | selinux: fix sleeping function called from invalid context (diff) | |
| download | linux-732bc2ff080c447f8524f40c970c481f5da6eed3.tar.xz linux-732bc2ff080c447f8524f40c970c481f5da6eed3.zip | |
selinux: initialize proto variable in selinux_ip_postroute_compat()
Clang static analysis reports this warning
hooks.c:5765:6: warning: 4th function call argument is an uninitialized
value
if (selinux_xfrm_postroute_last(sksec->sid, skb, &ad, proto))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
selinux_parse_skb() can return ok without setting proto. The later call
to selinux_xfrm_postroute_last() does an early check of proto and can
return ok if the garbage proto value matches. So initialize proto.
Cc: stable@vger.kernel.org
Fixes: eef9b41622f2 ("selinux: cleanup selinux_xfrm_sock_rcv_skb() and selinux_xfrm_postroute_last()")
Signed-off-by: Tom Rix <trix@redhat.com>
[PM: typo/spelling and checkpatch.pl description fixes]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'security/selinux')
| -rw-r--r-- | security/selinux/hooks.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 1afc06ffd969..dde4ecc0cd18 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -5785,7 +5785,7 @@ static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb, struct sk_security_struct *sksec; struct common_audit_data ad; struct lsm_network_audit net = {0,}; - u8 proto; + u8 proto = 0; sk = skb_to_full_sk(skb); if (sk == NULL) |