Commit c9ce2283 authored by Greg Banks's avatar Greg Banks Committed by Linus Torvalds

[PATCH] Fix a free-wrong-pointer bug in nfs/acl server.

Due to type confusion, when an nfsacl verison 2 'ACCESS' request
finishes and tries to clean up, it calls fh_put on entiredly the
wrong thing and this can cause an oops.
Signed-off-by: default avatarNeil Brown <neilb@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 575d5e72
......@@ -287,13 +287,20 @@ static int nfsaclsvc_release_getacl(struct svc_rqst *rqstp, __be32 *p,
return 1;
}
static int nfsaclsvc_release_fhandle(struct svc_rqst *rqstp, __be32 *p,
struct nfsd_fhandle *resp)
static int nfsaclsvc_release_attrstat(struct svc_rqst *rqstp, __be32 *p,
struct nfsd_attrstat *resp)
{
fh_put(&resp->fh);
return 1;
}
static int nfsaclsvc_release_access(struct svc_rqst *rqstp, __be32 *p,
struct nfsd3_accessres *resp)
{
fh_put(&resp->fh);
return 1;
}
#define nfsaclsvc_decode_voidargs NULL
#define nfsaclsvc_encode_voidres NULL
#define nfsaclsvc_release_void NULL
......@@ -322,9 +329,9 @@ struct nfsd3_voidargs { int dummy; };
static struct svc_procedure nfsd_acl_procedures2[] = {
PROC(null, void, void, void, RC_NOCACHE, ST),
PROC(getacl, getacl, getacl, getacl, RC_NOCACHE, ST+1+2*(1+ACL)),
PROC(setacl, setacl, attrstat, fhandle, RC_NOCACHE, ST+AT),
PROC(getattr, fhandle, attrstat, fhandle, RC_NOCACHE, ST+AT),
PROC(access, access, access, fhandle, RC_NOCACHE, ST+AT+1),
PROC(setacl, setacl, attrstat, attrstat, RC_NOCACHE, ST+AT),
PROC(getattr, fhandle, attrstat, attrstat, RC_NOCACHE, ST+AT),
PROC(access, access, access, access, RC_NOCACHE, ST+AT+1),
};
struct svc_version nfsd_acl_version2 = {
......
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