[fips-legacy-8-compliant] Many VULNS 2026-01-14

drivers/block/nbd.c

@@ -320,6 +320,9 @@ static int nbd_set_size(struct nbd_device *nbd, loff_t bytesize,
 	if (blksize < 512 || blksize > PAGE_SIZE || !is_power_of_2(blksize))
 		return -EINVAL;
 
+	if (bytesize < 0)
+		return -EINVAL;
+
 	nbd->config->bytesize = bytesize;
 	nbd->config->blksize = blksize;
 
@@ -1055,6 +1058,9 @@ static int nbd_add_socket(struct nbd_device *nbd, unsigned long arg,
 	struct nbd_sock *nsock;
 	int err;
 
+	/* Arg will be cast to int, check it to avoid overflow */
+	if (arg > INT_MAX)
+		return -EINVAL;
 	sock = nbd_get_socket(nbd, arg, &err);
 	if (!sock)
 		return err;

drivers/scsi/ses.c

@@ -575,15 +575,19 @@ static void ses_enclosure_data_process(struct enclosure_device *edev,
 			struct enclosure_component *ecomp;
 
 			if (desc_ptr) {
-				if (desc_ptr >= buf + page7_len) {
+				if (desc_ptr + 3 >= buf + page7_len) {
 					desc_ptr = NULL;
 				} else {
 					len = (desc_ptr[2] << 8) + desc_ptr[3];
 					desc_ptr += 4;
-					/* Add trailing zero - pushes into
-					 * reserved space */
-					desc_ptr[len] = '\0';
-					name = desc_ptr;
+					if (desc_ptr + len > buf + page7_len)
+						desc_ptr = NULL;
+					else {
+						/* Add trailing zero - pushes into
+						 * reserved space */
+						desc_ptr[len] = '\0';
+						name = desc_ptr;
+					}
 				}
 			}
 			if (type_ptr[0] == ENCLOSURE_COMPONENT_DEVICE ||

fs/nfsd/nfs4xdr.c

@@ -2362,10 +2362,12 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
 	for (i = 0; i < argp->opcnt; i++) {
 		op = &argp->ops[i];
 		op->replay = NULL;
+		op->opdesc = NULL;
 
 		if (xdr_stream_decode_u32(argp->xdr, &op->opnum) < 0)
 			return false;
 		if (nfsd4_opnum_in_range(argp, op)) {
+			op->opdesc = OPDESC(op);
 			op->status = nfsd4_dec_ops[op->opnum](argp, &op->u);
 			if (op->status != nfs_ok)
 				trace_nfsd_compound_decode_err(argp->rqstp,
@@ -2376,7 +2378,7 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
 			op->opnum = OP_ILLEGAL;
 			op->status = nfserr_op_illegal;
 		}
-		op->opdesc = OPDESC(op);
+
 		/*
 		 * We'll try to cache the result in the DRC if any one
 		 * op in the compound wants to be cached:

net/ceph/ceph_common.c

@@ -821,42 +821,53 @@ void ceph_reset_client_addr(struct ceph_client *client)
 }
 EXPORT_SYMBOL(ceph_reset_client_addr);
 
-/*
- * true if we have the mon map (and have thus joined the cluster)
- */
-static bool have_mon_and_osd_map(struct ceph_client *client)
-{
-	return client->monc.monmap && client->monc.monmap->epoch &&
-	       client->osdc.osdmap && client->osdc.osdmap->epoch;
-}
-
 /*
  * mount: join the ceph cluster, and open root directory.
  */
 int __ceph_open_session(struct ceph_client *client, unsigned long started)
 {
-	unsigned long timeout = client->options->mount_timeout;
-	long err;
+	DEFINE_WAIT_FUNC(wait, woken_wake_function);
+	long timeout = ceph_timeout_jiffies(client->options->mount_timeout);
+	bool have_monmap, have_osdmap;
+	int err;
 
 	/* open session, and wait for mon and osd maps */
 	err = ceph_monc_open_session(&client->monc);
 	if (err < 0)
 		return err;
 
-	while (!have_mon_and_osd_map(client)) {
-		if (timeout && time_after_eq(jiffies, started + timeout))
-			return -ETIMEDOUT;
+	add_wait_queue(&client->auth_wq, &wait);
+	for (;;) {
+		mutex_lock(&client->monc.mutex);
+		err = client->auth_err;
+		have_monmap = client->monc.monmap && client->monc.monmap->epoch;
+		mutex_unlock(&client->monc.mutex);
+
+		down_read(&client->osdc.lock);
+		have_osdmap = client->osdc.osdmap && client->osdc.osdmap->epoch;
+		up_read(&client->osdc.lock);
+
+		if (err || (have_monmap && have_osdmap))
+			break;
+
+		if (signal_pending(current)) {
+			err = -ERESTARTSYS;
+			break;
+		}
+
+		if (!timeout) {
+			err = -ETIMEDOUT;
+			break;
+		}
 
 		/* wait */
 		dout("mount waiting for mon_map\n");
-		err = wait_event_interruptible_timeout(client->auth_wq,
-			have_mon_and_osd_map(client) || (client->auth_err < 0),
-			ceph_timeout_jiffies(timeout));
-		if (err < 0)
-			return err;
-		if (client->auth_err < 0)
-			return client->auth_err;
+		timeout = wait_woken(&wait, TASK_INTERRUPTIBLE, timeout);
 	}
+	remove_wait_queue(&client->auth_wq, &wait);
+
+	if (err)
+		return err;
 
 	pr_info("client%llu fsid %pU\n", ceph_client_gid(client),
 		&client->fsid);

net/ceph/debugfs.c

@@ -36,8 +36,9 @@ static int monmap_show(struct seq_file *s, void *p)
 	int i;
 	struct ceph_client *client = s->private;
 
+	mutex_lock(&client->monc.mutex);
 	if (client->monc.monmap == NULL)
-		return 0;
+		goto out_unlock;
 
 	seq_printf(s, "epoch %d\n", client->monc.monmap->epoch);
 	for (i = 0; i < client->monc.monmap->num_mon; i++) {
@@ -48,6 +49,9 @@ static int monmap_show(struct seq_file *s, void *p)
 			   ENTITY_NAME(inst->name),
 			   ceph_pr_addr(&inst->addr));
 	}
+
+out_unlock:
+	mutex_unlock(&client->monc.mutex);
 	return 0;
 }
 
@@ -56,13 +60,14 @@ static int osdmap_show(struct seq_file *s, void *p)
 	int i;
 	struct ceph_client *client = s->private;
 	struct ceph_osd_client *osdc = &client->osdc;
-	struct ceph_osdmap *map = osdc->osdmap;
+	struct ceph_osdmap *map;
 	struct rb_node *n;
 
+	down_read(&osdc->lock);
+	map = osdc->osdmap;
 	if (map == NULL)
-		return 0;
+		goto out_unlock;
 
-	down_read(&osdc->lock);
 	seq_printf(s, "epoch %u barrier %u flags 0x%x\n", map->epoch,
 			osdc->epoch_barrier, map->flags);
 
@@ -131,6 +136,7 @@ static int osdmap_show(struct seq_file *s, void *p)
 		seq_printf(s, "]\n");
 	}
 
+out_unlock:
 	up_read(&osdc->lock);
 	return 0;
 }

net/ipv6/exthdrs_core.c

@@ -142,6 +142,8 @@ int ipv6_find_tlv(const struct sk_buff *skb, int offset, int type)
 			optlen = 1;
 			break;
 		default:
+			if (len < 2)
+				goto bad;
 			optlen = nh[offset + 1] + 2;
 			if (optlen > len)
 				goto bad;