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| author | Greg Banks <gnb@sgi.com> | 2007-02-20 10:12:34 +1100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-19 16:13:28 -0800 |
| commit | c9ce228306fda4448f5f495b4f36c07956f45acd (patch) | |
| tree | 1af8af646a209757f1f1af4c2de590e8027b779d /fs/nfsd/nfs2acl.c | |
| parent | 575d5e72aab57beb6d5fa2a7d66be9fc681a5e00 (diff) | |
| download | linux-c9ce228306fda4448f5f495b4f36c07956f45acd.tar.gz | |
[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: Neil Brown <neilb@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nfsd/nfs2acl.c')
| -rw-r--r-- | fs/nfsd/nfs2acl.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c index edde5dc5f796..b61742885011 100644 --- a/fs/nfsd/nfs2acl.c +++ b/fs/nfsd/nfs2acl.c @@ -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 = { |