iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
e81208fe58
linux/fs/nfsd
History
NeilBrown b41eeef14d knfsd: avoid Oops if buggy userspace performs confusing filehandle->dentry mapping 
When a lookup request arrives, nfsd uses information provided by userspace
(mountd) to find the right filesystem.

It then assumes that the same filehandle type as the incoming filehandle can
be used to create an outgoing filehandle.

However if mountd is buggy, or maybe just being creative, the filesystem may
not support that filesystem type, and the kernel could oops, particularly if
'ex_uuid' is NULL but a FSID_UUID* filehandle type is used.

So add some proper checking that the fsid version/type from the incoming
filehandle is actually supportable, and ignore that information if it isn't
supportable.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09 12:30:54 -07:00
..
auth.c [PATCH] knfsd: nfsd: nfsd_setuser doesn't really need to modify rqstp->rq_cred. 2006-04-11 06:18:52 -07:00
export.c knfsd: avoid use of unitialised variables on error path when nfs exports 2007-05-09 12:30:54 -07:00
lockd.c [PATCH] lockd endianness annotations 2006-12-13 09:05:52 -08:00
Makefile knfsd: trivial makefile cleanup 2007-05-09 12:30:54 -07:00
nfs2acl.c [PATCH] Fix a free-wrong-pointer bug in nfs/acl server. 2007-02-19 16:13:28 -08:00
nfs3acl.c [PATCH] NFS3: Calculate 'w' a bit later in nfs3svc_encode_getaclres() 2006-12-08 08:29:02 -08:00
nfs3proc.c RPC: add wrapper for svc_reserve to account for checksum 2007-05-09 12:30:54 -07:00
nfs3xdr.c knfsd: various nfsd xdr cleanups 2007-05-09 12:30:54 -07:00
nfs4acl.c remove nfs4_acl_add_ace() 2007-05-09 12:30:54 -07:00
nfs4callback.c SUNRPC: RPC buffer size estimates are too large 2007-04-30 22:17:10 -07:00
nfs4idmap.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
nfs4proc.c [PATCH] knfsd: nfsd4: simplify filehandle check 2006-12-13 09:05:54 -08:00
nfs4recover.c [PATCH] lockdep: annotate nfsd4 recover code 2006-12-08 08:29:01 -08:00
nfs4state.c nfsd/nfs4state: remove unnecessary daemonize call 2007-05-09 12:30:54 -07:00
nfs4xdr.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
nfscache.c [PATCH] knfsd: SUNRPC: Provide room in svc_rqst for larger addresses 2007-02-12 09:48:36 -08:00
nfsctl.c [PATCH] knfsd: fix return value for writes to some files in 'nfsd' filesystem 2007-02-14 08:09:53 -08:00
nfsfh.c knfsd: avoid Oops if buggy userspace performs confusing filehandle->dentry mapping 2007-05-09 12:30:54 -07:00
nfsproc.c RPC: add wrapper for svc_reserve to account for checksum 2007-05-09 12:30:54 -07:00
nfssvc.c [PATCH] knfsd: SUNRPC: allow creating an RPC service without registering with portmapper 2007-02-12 09:48:35 -08:00
nfsxdr.c knfsd: various nfsd xdr cleanups 2007-05-09 12:30:54 -07:00
stats.c [PATCH] knfsd: nfsd4: add per-operation server stats 2006-07-10 13:24:27 -07:00
vfs.c [PATCH] knfsd: nfsd4: fix error return on unsupported acl 2007-02-16 08:14:01 -08:00