Jiri Bohac 6c015a2256 net: check all name nodes in __dev_alloc_name ... __dev_alloc_name(), when supplied with a name containing '%d', will search for the first available device number to generate a unique device name. Since commit ff92741270 ("net: introduce name_node struct to be used in hashlist") network devices may have alternate names. __dev_alloc_name() does take these alternate names into account, possibly generating a name that is already taken and failing with -ENFILE as a result. This demonstrates the bug: # rmmod dummy 2>/dev/null # ip link property add dev lo altname dummy0 # modprobe dummy numdummies=1 modprobe: ERROR: could not insert 'dummy': Too many open files in system Instead of creating a device named dummy1, modprobe fails. Fix this by checking all the names in the d->name_node list, not just d->name. Signed-off-by: Jiri Bohac <jbohac@suse.cz> Fixes: ff92741270 ("net: introduce name_node struct to be used in hashlist") Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2021-03-18 14:40:53 -07:00
..
Makefile	ethtool: move to its own directory	2019-12-12 17:07:05 -08:00
bpf_sk_storage.c	bpf: Expose bpf_sk_storage_* to iterator programs	2020-12-04 22:32:40 +01:00
datagram.c	udp: fix skb_copy_and_csum_datagram with odd segment sizes	2021-02-04 18:56:56 -08:00
datagram.h	net/core: Allow the compiler to verify declaration and definition consistency	2019-03-27 13:49:44 -07:00
dev.c	net: check all name nodes in __dev_alloc_name	2021-03-18 14:40:53 -07:00
dev_addr_lists.c	net: core: add nested_level variable in net_device	2020-09-28 15:00:15 -07:00
dev_ioctl.c	net: fix dev_ifsioc_locked() race condition	2021-02-11 18:14:19 -08:00
devlink.c	mlx5 subfunction support	2021-01-28 16:57:19 -08:00
drop_monitor.c	drop_monitor: Perform cleanup upon probe registration failure	2021-03-10 15:19:02 -08:00
dst.c	net, bpf: Fix ip6ip6 crash with collect_md populated skbs	2021-03-10 12:24:18 -08:00
dst_cache.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
failover.c	failover: allow name change on IFF_UP slave interfaces	2019-04-10 22:12:26 -07:00
fib_notifier.c	net: fib_notifier: propagate extack down to the notifier block callback	2019-10-04 11:10:56 -07:00
fib_rules.c	treewide: rename nla_strlcpy to nla_strscpy.	2020-11-16 08:08:54 -08:00
filter.c	bpf: BPF-helper for MTU checking add length input	2021-03-08 22:44:33 +01:00
flow_dissector.c	flow_dissector: fix byteorder of dissected ICMP ID	2021-03-14 14:30:20 -07:00
flow_offload.c	net: flow_offload: Fix memory leak for indirect flow block	2020-12-09 16:08:33 -08:00
gen_estimator.c	net_sched: gen_estimator: support large ewma log	2021-01-15 18:11:06 -08:00
gen_stats.c	docs: networking: convert gen_stats.txt to ReST	2020-04-28 14:39:46 -07:00
gro_cells.c	gro_cells: reduce number of synchronize_net() calls	2020-11-25 11:28:12 -08:00
hwbm.c	net: hwbm: Make the hwbm_pool lock a mutex	2019-06-09 19:40:10 -07:00
link_watch.c	net: Add IF_OPER_TESTING	2020-04-20 12:43:24 -07:00
lwt_bpf.c	lwt_bpf: Replace preempt_disable() with migrate_disable()	2020-12-07 11:53:40 -08:00
lwtunnel.c	net: ipv6: add rpl sr tunnel	2020-03-29 22:30:57 -07:00
neighbour.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-02-02 14:21:31 -08:00
net-procfs.c	net-sysfs: add backlog len and CPU id to softnet data	2020-09-21 13:56:37 -07:00
net-sysfs.c	net: add sysfs attribute to control napi threaded mode	2021-02-09 15:27:28 -08:00
net-sysfs.h	net-sysfs: add netdev_change_owner()	2020-02-26 20:07:25 -08:00
net-traces.c	page_pool: add tracepoints for page_pool with details need by XDP	2019-06-19 11:23:13 -04:00
net_namespace.c	net: initialize net->net_cookie at netns setup	2021-02-11 14:10:07 -08:00
netclassid_cgroup.c	net: Remove the err argument from sock_from_file	2020-12-04 22:32:40 +01:00
netevent.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
netpoll.c	Revert "net: Have netpoll bring-up DSA management interface"	2021-02-06 14:42:57 -08:00
netprio_cgroup.c	net: Remove the err argument from sock_from_file	2020-12-04 22:32:40 +01:00
page_pool.c	net: page_pool: simplify page recycling condition tests	2021-02-04 18:20:14 -08:00
pktgen.c	pktgen: fix misuse of BUG_ON() in pktgen_thread_worker()	2021-01-27 16:46:37 -08:00
ptp_classifier.c	ptp: Add generic ptp v2 header parsing function	2020-08-19 16:07:49 -07:00
request_sock.c	tcp: add rcu protection around tp->fastopen_rsk	2019-10-13 10:13:08 -07:00
rtnetlink.c	rtnetlink: using dev_base_seq from target net	2021-03-03 16:59:17 -08:00
scm.c	fs: Add receive_fd() wrapper for __receive_fd()	2020-07-13 11:03:44 -07:00
secure_seq.c	crypto: lib/sha1 - remove unnecessary includes of linux/cryptohash.h	2020-05-08 15:32:17 +10:00
skbuff.c	net: expand textsearch ts_state to fit skb_seq_state	2021-03-01 15:25:24 -08:00
skmsg.c	skmsg: Make sk_psock_destroy() static	2021-01-28 00:35:03 +01:00
sock.c	net: sock: simplify tw proto registration	2021-03-11 16:05:08 -08:00
sock_diag.c	bpf, net: Rework cookie generator as per-cpu one	2020-09-30 11:50:35 -07:00
sock_map.c	bpf: Replace fput with sockfd_put in sock map	2021-01-08 13:39:24 -08:00
sock_reuseport.c	udp: Prevent reuseport_select_sock from reading uninitialized socks	2021-01-08 19:15:40 -08:00
stream.c	tcp: make sure EPOLLOUT wont be missed	2019-08-19 13:07:43 -07:00
sysctl_net_core.c	net: sysctl: remove redundant #ifdef CONFIG_NET	2021-01-27 17:02:43 -08:00
timestamping.c	net: Introduce a new MII time stamping interface.	2019-12-25 19:51:33 -08:00
tso.c	net: tso: add UDP segmentation support	2020-06-18 20:46:23 -07:00
utils.c	net: Fix skb->csum update in inet_proto_csum_replace16().	2020-01-24 20:54:30 +01:00
xdp.c	net, veth: Alloc skb in bulk for ndo_xdp_xmit	2021-02-04 01:00:07 +01:00