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-rw-r--r--sys/fs/fuse/fuse_ipc.c2
-rw-r--r--sys/fs/fuse/fuse_vnops.c2
-rw-r--r--sys/fs/nfs/nfs_commonsubs.c16
-rw-r--r--sys/fs/nfsclient/nfs_clrpcops.c36
-rw-r--r--sys/fs/nfsclient/nfs_clvfsops.c8
-rw-r--r--sys/fs/nfsserver/nfs_nfsdserv.c5
6 files changed, 46 insertions, 23 deletions
diff --git a/sys/fs/fuse/fuse_ipc.c b/sys/fs/fuse/fuse_ipc.c
index 7f754ab7f1d4..bc36f0070d7d 100644
--- a/sys/fs/fuse/fuse_ipc.c
+++ b/sys/fs/fuse/fuse_ipc.c
@@ -694,7 +694,7 @@ fuse_body_audit(struct fuse_ticket *ftick, size_t blen)
break;
case FUSE_FORGET:
- panic("FUSE: a handler has been intalled for FUSE_FORGET");
+ panic("FUSE: a handler has been installed for FUSE_FORGET");
break;
case FUSE_GETATTR:
diff --git a/sys/fs/fuse/fuse_vnops.c b/sys/fs/fuse/fuse_vnops.c
index 683ee2f7ad56..97aa23bfb0b0 100644
--- a/sys/fs/fuse/fuse_vnops.c
+++ b/sys/fs/fuse/fuse_vnops.c
@@ -2756,7 +2756,7 @@ fuse_vnop_setextattr(struct vop_setextattr_args *ap)
*/
if (fsess_not_impl(mp, FUSE_REMOVEXATTR))
return (EXTERROR(EOPNOTSUPP, "This server does not "
- "implement removing extended attributess"));
+ "implement removing extended attributes"));
else
return (EXTERROR(EINVAL, "DELETEEXTATTR should be used "
"to remove extattrs"));
diff --git a/sys/fs/nfs/nfs_commonsubs.c b/sys/fs/nfs/nfs_commonsubs.c
index 8d506a5643a9..f580a394a735 100644
--- a/sys/fs/nfs/nfs_commonsubs.c
+++ b/sys/fs/nfs/nfs_commonsubs.c
@@ -194,7 +194,6 @@ struct nfsv4_opflag nfsv4_opflag[NFSV42_NOPS] = {
{ 0, 1, 1, 1, LK_EXCLUSIVE, 1, 1 }, /* Removexattr */
};
-static int ncl_mbuf_mhlen = MHLEN;
struct nfsrv_lughash {
struct mtx mtx;
struct nfsuserhashhead lughead;
@@ -770,7 +769,7 @@ nfsm_dissct(struct nfsrv_descript *nd, int siz, int how)
nd->nd_dpos += siz;
} else if (nd->nd_md->m_next == NULL) {
return (retp);
- } else if (siz > ncl_mbuf_mhlen) {
+ } else if (siz > MHLEN) {
panic("nfs S too big");
} else {
MGET(mp2, how, MT_DATA);
@@ -4192,10 +4191,15 @@ nfssvc_idname(struct nfsd_idargs *nidp)
nidp->nid_namelen);
if (error == 0 && nidp->nid_ngroup > 0 &&
(nidp->nid_flag & NFSID_ADDUID) != 0) {
- grps = malloc(sizeof(gid_t) * nidp->nid_ngroup, M_TEMP,
- M_WAITOK);
- error = copyin(nidp->nid_grps, grps,
- sizeof(gid_t) * nidp->nid_ngroup);
+ grps = NULL;
+ if (nidp->nid_ngroup > NGROUPS_MAX)
+ error = EINVAL;
+ if (error == 0) {
+ grps = malloc(sizeof(gid_t) * nidp->nid_ngroup, M_TEMP,
+ M_WAITOK);
+ error = copyin(nidp->nid_grps, grps,
+ sizeof(gid_t) * nidp->nid_ngroup);
+ }
if (error == 0) {
/*
* Create a credential just like svc_getcred(),
diff --git a/sys/fs/nfsclient/nfs_clrpcops.c b/sys/fs/nfsclient/nfs_clrpcops.c
index d3b83eb8b94b..b61218958550 100644
--- a/sys/fs/nfsclient/nfs_clrpcops.c
+++ b/sys/fs/nfsclient/nfs_clrpcops.c
@@ -2212,7 +2212,7 @@ nfsrpc_writerpc(vnode_t vp, struct uio *uiop, int *iomode,
NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED
+ NFSX_VERF);
rlen = fxdr_unsigned(int, *tl++);
- if (rlen == 0) {
+ if (rlen <= 0 || rlen > len) {
error = NFSERR_IO;
goto nfsmout;
} else if (rlen < len) {
@@ -5284,7 +5284,7 @@ nfsrpc_getdirpath(struct nfsmount *nmp, u_char *dirpath, struct ucred *cred,
struct nfsrv_descript nfsd;
struct nfsrv_descript *nd = &nfsd;
u_char *cp, *cp2, *fhp;
- int error, cnt, len, setnil;
+ int error, cnt, i, len, setnil;
u_int32_t *opcntp;
nfscl_reqstart(nd, NFSPROC_PUTROOTFH, nmp, NULL, 0, &opcntp, NULL, 0,
@@ -5325,8 +5325,12 @@ nfsrpc_getdirpath(struct nfsmount *nmp, u_char *dirpath, struct ucred *cred,
if (error)
return (error);
if (nd->nd_repstat == 0) {
- NFSM_DISSECT(tl, u_int32_t *, (3 + 2 * cnt) * NFSX_UNSIGNED);
- tl += (2 + 2 * cnt);
+ NFSM_DISSECT(tl, uint32_t *, 3 * NFSX_UNSIGNED);
+ tl += 2;
+ for (i = 0; i < cnt; i++) {
+ NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED);
+ tl++;
+ }
if ((len = fxdr_unsigned(int, *tl)) <= 0 ||
len > NFSX_FHMAX) {
nd->nd_repstat = NFSERR_BADXDR;
@@ -5599,7 +5603,7 @@ nfsrpc_createsession(struct nfsmount *nmp, struct nfsclsession *sep,
}
*tl++ = txdr_unsigned(4096); /* Max response size cached */
*tl++ = txdr_unsigned(20); /* Max operations */
- *tl++ = txdr_unsigned(64); /* Max slots */
+ *tl++ = txdr_unsigned(NFSV4_SLOTS); /* Max slots */
*tl = 0; /* No rdma ird */
/* Fill in back channel attributes. */
@@ -5668,6 +5672,11 @@ nfsrpc_createsession(struct nfsmount *nmp, struct nfsclsession *sep,
sep->nfsess_maxcache = fxdr_unsigned(int, *tl++);
tl++;
sep->nfsess_foreslots = fxdr_unsigned(uint16_t, *tl++);
+ if (sep->nfsess_foreslots == 0) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ } else if (sep->nfsess_foreslots > NFSV4_SLOTS)
+ sep->nfsess_foreslots = NFSV4_SLOTS;
NFSCL_DEBUG(4, "fore slots=%d\n", (int)sep->nfsess_foreslots);
irdcnt = fxdr_unsigned(int, *tl);
if (irdcnt < 0 || irdcnt > 1) {
@@ -5681,6 +5690,8 @@ nfsrpc_createsession(struct nfsmount *nmp, struct nfsclsession *sep,
NFSM_DISSECT(tl, uint32_t *, 7 * NFSX_UNSIGNED);
tl += 5;
sep->nfsess_backslots = fxdr_unsigned(uint16_t, *tl);
+ if (sep->nfsess_backslots > NFSV4_CBSLOTS)
+ sep->nfsess_backslots = NFSV4_CBSLOTS;
NFSCL_DEBUG(4, "back slots=%d\n", (int)sep->nfsess_backslots);
}
error = nd->nd_repstat;
@@ -5800,7 +5811,8 @@ nfsrpc_getdeviceinfo(struct nfsmount *nmp, uint8_t *deviceid, int layouttype,
NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
stripecnt = fxdr_unsigned(int, *tl);
NFSCL_DEBUG(4, "stripecnt=%d\n", stripecnt);
- if (stripecnt < 1 || stripecnt > 4096) {
+ if (stripecnt >= MHLEN / NFSX_UNSIGNED ||
+ stripecnt < 1) {
printf("pNFS File layout devinfo stripecnt %d:"
" out of range\n", stripecnt);
error = NFSERR_BADXDR;
@@ -7249,7 +7261,7 @@ nfsrpc_writeds(vnode_t vp, struct uio *uiop, int *iomode, int *must_commit,
NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED + NFSX_VERF);
rlen = fxdr_unsigned(int, *tl++);
NFSCL_DEBUG(4, "nfsrpc_writeds: len=%d rlen=%d\n", len, rlen);
- if (rlen == 0) {
+ if (rlen <= 0 || rlen > len) {
error = NFSERR_IO;
goto nfsmout;
} else if (rlen < len) {
@@ -8246,7 +8258,7 @@ nfsrv_parseug(struct nfsrv_descript *nd, int dogrp, uid_t *uidp, gid_t *gidp,
NFSPROC_T *p)
{
uint32_t *tl;
- char *cp, *str, str0[NFSV4_SMALLSTR + 1];
+ char *str, str0[NFSV4_SMALLSTR + 1];
uint32_t len = 0;
int error = 0;
@@ -8269,9 +8281,9 @@ nfsrv_parseug(struct nfsrv_descript *nd, int dogrp, uid_t *uidp, gid_t *gidp,
str = malloc(len + 1, M_TEMP, M_WAITOK);
else
str = str0;
- NFSM_DISSECT(cp, char *, NFSM_RNDUP(len));
- NFSBCOPY(cp, str, len);
- str[len] = '\0';
+ error = nfsrv_mtostr(nd, str, len);
+ if (error != 0)
+ goto nfsmout;
NFSCL_DEBUG(4, "nfsrv_parseug: str=%s\n", str);
if (dogrp != 0)
error = nfsv4_strtogid(nd, str, len, gidp);
@@ -9748,7 +9760,7 @@ nfsm_split(struct mbuf *mp, uint64_t xfer)
pgno++;
} while (pgno < m->m_epg_npgs);
if (pgno == m->m_epg_npgs)
- panic("nfsm_split: eroneous ext_pgs mbuf");
+ panic("nfsm_split: erroneous ext_pgs mbuf");
m2 = mb_alloc_ext_pgs(M_WAITOK, mb_free_mext_pgs, 0);
m2->m_epg_flags |= EPG_FLAG_ANON;
diff --git a/sys/fs/nfsclient/nfs_clvfsops.c b/sys/fs/nfsclient/nfs_clvfsops.c
index 5ea7eab07632..212c88f28930 100644
--- a/sys/fs/nfsclient/nfs_clvfsops.c
+++ b/sys/fs/nfsclient/nfs_clvfsops.c
@@ -927,7 +927,7 @@ nfs_mount(struct mount *mp)
struct vnode *vp;
struct thread *td;
char *hst;
- u_char nfh[NFSX_FHMAX], krbname[100], dirpath[100], srvkrbname[100];
+ u_char nfh[NFSX_FHMAX], krbname[100], *dirpath, srvkrbname[100];
char *cp, *opt, *name, *secname, *tlscertname;
int nametimeo = NFS_DEFAULT_NAMETIMEO;
int negnametimeo = NFS_DEFAULT_NEGNAMETIMEO;
@@ -943,6 +943,7 @@ nfs_mount(struct mount *mp)
newflag = 0;
tlscertname = NULL;
hst = malloc(MNAMELEN, M_TEMP, M_WAITOK);
+ dirpath = malloc(MNAMELEN, M_TEMP, M_WAITOK);
if (vfs_filteropt(mp->mnt_optnew, nfs_opts)) {
error = EINVAL;
goto out;
@@ -1329,7 +1330,7 @@ nfs_mount(struct mount *mp)
goto out;
} else if (nfs_mount_parse_from(mp->mnt_optnew,
&args.hostname, (struct sockaddr_in **)&nam, dirpath,
- sizeof(dirpath), &dirlen) == 0) {
+ MNAMELEN, &dirlen) == 0) {
has_nfs_from_opt = 1;
bcopy(args.hostname, hst, MNAMELEN);
hst[MNAMELEN - 1] = '\0';
@@ -1387,7 +1388,7 @@ nfs_mount(struct mount *mp)
if (has_nfs_from_opt == 0) {
if (vfs_getopt(mp->mnt_optnew,
"dirpath", (void **)&name, NULL) == 0)
- strlcpy(dirpath, name, sizeof (dirpath));
+ strlcpy(dirpath, name, MNAMELEN);
else
dirpath[0] = '\0';
dirlen = strlen(dirpath);
@@ -1472,6 +1473,7 @@ out:
MNT_IUNLOCK(mp);
}
free(hst, M_TEMP);
+ free(dirpath, M_TEMP);
return (error);
}
diff --git a/sys/fs/nfsserver/nfs_nfsdserv.c b/sys/fs/nfsserver/nfs_nfsdserv.c
index 6f3447f26620..67af0cf71175 100644
--- a/sys/fs/nfsserver/nfs_nfsdserv.c
+++ b/sys/fs/nfsserver/nfs_nfsdserv.c
@@ -5138,6 +5138,11 @@ nfsrvd_layoutcommit(struct nfsrv_descript *nd, __unused int isdgram,
NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED);
layouttype = fxdr_unsigned(int, *tl++);
maxcnt = fxdr_unsigned(int, *tl);
+ /* There is no limit in the RFC, so use 1000 as a sanity limit. */
+ if (maxcnt < 0 || maxcnt > 1000) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
if (maxcnt > 0) {
layp = malloc(maxcnt + 1, M_TEMP, M_WAITOK);
error = nfsrv_mtostr(nd, layp, maxcnt);
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-30 07:19:06 +0000