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authorLinus Torvalds <torvalds@linux-foundation.org>2013-04-19 15:32:32 +0000
committerDavid S. Miller <davem@davemloft.net>2013-04-20 16:56:42 -0400
commit83f1b4ba917db5dc5a061a44b3403ddb6e783494 (patch)
tree6e9174169fe7dcab3c8b530b69d32ca1986cdda8
parentc846ad9b880ece01bb4d8d07ba917734edf0324f (diff)
downloadlinux-83f1b4ba917db5dc5a061a44b3403ddb6e783494.tar.gz
net: fix incorrect credentials passing
Commit 257b5358b32f ("scm: Capture the full credentials of the scm sender") changed the credentials passing code to pass in the effective uid/gid instead of the real uid/gid. Obviously this doesn't matter most of the time (since normally they are the same), but it results in differences for suid binaries when the wrong uid/gid ends up being used. This just undoes that (presumably unintentional) part of the commit. Reported-by: Andy Lutomirski <luto@amacapital.net> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Serge E. Hallyn <serge@hallyn.com> Cc: David S. Miller <davem@davemloft.net> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/scm.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/net/scm.h b/include/net/scm.h
index 975cca01048..b1170810568 100644
--- a/include/net/scm.h
+++ b/include/net/scm.h
@@ -56,8 +56,8 @@ static __inline__ void scm_set_cred(struct scm_cookie *scm,
scm->pid = get_pid(pid);
scm->cred = cred ? get_cred(cred) : NULL;
scm->creds.pid = pid_vnr(pid);
- scm->creds.uid = cred ? cred->euid : INVALID_UID;
- scm->creds.gid = cred ? cred->egid : INVALID_GID;
+ scm->creds.uid = cred ? cred->uid : INVALID_UID;
+ scm->creds.gid = cred ? cred->gid : INVALID_GID;
}
static __inline__ void scm_destroy_cred(struct scm_cookie *scm)