From 683428fae8c73d7d7da0fa2e0b6beb4d8df4e808 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Sat, 2 Feb 2013 01:40:53 -0800 Subject: sunrpc: Update svcgss xdr handle to rpsec_contect cache For each received uid call make_kuid and validate the result. For each received gid call make_kgid and validate the result. Cc: "J. Bruce Fields" Cc: Trond Myklebust Signed-off-by: "Eric W. Biederman" --- net/sunrpc/auth_gss/svcauth_gss.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c index 73e957386600..ecd1d58bf611 100644 --- a/net/sunrpc/auth_gss/svcauth_gss.c +++ b/net/sunrpc/auth_gss/svcauth_gss.c @@ -418,6 +418,7 @@ static int rsc_parse(struct cache_detail *cd, { /* contexthandle expiry [ uid gid N mechname ...mechdata... ] */ char *buf = mesg; + int id; int len, rv; struct rsc rsci, *rscp = NULL; time_t expiry; @@ -444,7 +445,7 @@ static int rsc_parse(struct cache_detail *cd, goto out; /* uid, or NEGATIVE */ - rv = get_int(&mesg, &rsci.cred.cr_uid); + rv = get_int(&mesg, &id); if (rv == -EINVAL) goto out; if (rv == -ENOENT) @@ -452,8 +453,16 @@ static int rsc_parse(struct cache_detail *cd, else { int N, i; + /* uid */ + rsci.cred.cr_uid = make_kuid(&init_user_ns, id); + if (!uid_valid(rsci.cred.cr_uid)) + goto out; + /* gid */ - if (get_int(&mesg, &rsci.cred.cr_gid)) + if (get_int(&mesg, &id)) + goto out; + rsci.cred.cr_gid = make_kgid(&init_user_ns, id); + if (!gid_valid(rsci.cred.cr_gid)) goto out; /* number of additional gid's */ @@ -467,11 +476,10 @@ static int rsc_parse(struct cache_detail *cd, /* gid's */ status = -EINVAL; for (i=0; i