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Florent Fourcot ef2a7c9065 rtnetlink: return ENODEV when ifname does not exist and group is given 
When the interface does not exist, and a group is given, the given
parameters are being set to all interfaces of the given group. The given
IFNAME/ALT_IF_NAME are being ignored in that case.

That can be dangerous since a typo (or a deleted interface) can produce
weird side effects for caller:

Case 1:

 IFLA_IFNAME=valid_interface
 IFLA_GROUP=1
 MTU=1234

Case 1 will update MTU and group of the given interface "valid_interface".

Case 2:

 IFLA_IFNAME=doesnotexist
 IFLA_GROUP=1
 MTU=1234

Case 2 will update MTU of all interfaces in group 1. IFLA_IFNAME is
ignored in this case

This behaviour is not consistent and dangerous. In order to fix this issue,
we now return ENODEV when the given IFNAME does not exist.

Signed-off-by: Florent Fourcot <florent.fourcot@wifirst.fr>
Signed-off-by: Brian Baboch <brian.baboch@wifirst.fr>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-04-19 13:38:31 +02:00
..
bpf_sk_storage.c
bpf: Check for NULL return from bpf_get_btf_vmlinux
2022-03-20 19:21:38 -07:00
datagram.c
net: remove noblock parameter from skb_recv_datagram()
2022-04-06 13:45:26 +01:00
datagram.h
…
dev_addr_lists_test.c
net: kunit: add a test for dev_addr_lists
2021-11-20 12:25:57 +00:00
dev_addr_lists.c
net: extract a few internals from netdevice.h
2022-04-07 20:32:09 -07:00
dev_ioctl.c
net: extract a few internals from netdevice.h
2022-04-07 20:32:09 -07:00
dev.c
net: sched: use queue_mapping to pick tx queue
2022-04-19 12:20:45 +02:00
dev.h
net: extract a few internals from netdevice.h
2022-04-07 20:32:09 -07:00
devlink.c
devlink: add port to line card relationship set
2022-04-18 11:00:18 +01:00
drop_monitor.c
drop_monitor: remove quadratic behavior
2022-02-23 12:39:58 +00:00
dst_cache.c
wireguard: device: reset peer src endpoint when netns exits
2021-11-29 19:50:45 -08:00
dst.c
net: dst: add net device refcount tracking to dst_entry
2021-12-06 16:05:10 -08:00
failover.c
net: failover: add net device refcount tracker
2021-12-06 16:06:02 -08:00
fib_notifier.c
…
fib_rules.c
fib: expand fib_rule_policy
2021-12-16 07:18:35 -08:00
filter.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-04-07 23:24:23 -07:00
flow_dissector.c
flow_dissector: fix false-positive __read_overflow2_field() warning
2022-04-08 12:16:59 +01:00
flow_offload.c
flow_offload: add reoffload process to update hw_count
2021-12-19 14:08:48 +00:00
gen_estimator.c
net: sched: Remove Qdisc::running sequence counter
2021-10-18 12:54:41 +01:00
gen_stats.c
net: stats: Read the statistics in ___gnet_stats_copy_basic() instead of adding.
2021-10-21 12:47:56 +01:00
gro_cells.c
net: add per-cpu storage and net->core_stats
2022-03-11 23:17:24 -08:00
gro.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-03-10 17:16:56 -08:00
hwbm.c
…
link_watch.c
net: extract a few internals from netdevice.h
2022-04-07 20:32:09 -07:00
lwt_bpf.c
net: Don't include filter.h from net/sock.h
2021-12-29 08:48:14 -08:00
lwtunnel.c
lwtunnel: Validate RTA_ENCAP_TYPE attribute length
2021-12-31 14:31:59 +00:00
Makefile
net: kunit: add a test for dev_addr_lists
2021-11-20 12:25:57 +00:00
neighbour.c
net: neigh: use kfree_skb_reason() for __neigh_event_send()
2022-02-26 12:53:59 +00:00
net_namespace.c
net: initialize init_net earlier
2022-02-06 11:04:29 +00:00
net-procfs.c
net: extract a few internals from netdevice.h
2022-04-07 20:32:09 -07:00
net-sysfs.c
net: extract a few internals from netdevice.h
2022-04-07 20:32:09 -07:00
net-sysfs.h
…
net-traces.c
tcp: add tracepoint for checksum errors
2021-05-14 15:26:03 -07:00
netclassid_cgroup.c
bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode
2021-09-13 16:35:58 -07:00
netevent.c
net: core: Correct function name netevent_unregister_notifier() in the kerneldoc
2021-03-28 17:56:56 -07:00
netpoll.c
netpoll: add net device refcount tracker to struct netpoll
2021-12-06 16:06:02 -08:00
netprio_cgroup.c
bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode
2021-09-13 16:35:58 -07:00
of_net.c
Revert "of: net: support NVMEM cells with MAC in text format"
2022-01-12 14:14:36 +00:00
page_pool.c
net: page_pool: introduce ethtool stats
2022-04-15 10:43:47 +01:00
pktgen.c
proc: remove PDE_DATA() completely
2022-01-22 08:33:37 +02:00
ptp_classifier.c
ptp: Add generic PTP is_sync() function
2022-03-07 11:31:34 +00:00
request_sock.c
…
rtnetlink.c
rtnetlink: return ENODEV when ifname does not exist and group is given
2022-04-19 13:38:31 +02:00
scm.c
memcg: enable accounting for scm_fp_list objects
2021-07-20 06:00:38 -07:00
secure_seq.c
net: align static siphash keys
2021-11-16 19:07:54 -08:00
selftests.c
net: core: constify mac addrs in selftests
2021-10-24 13:59:44 +01:00
skbuff.c
skbuff: fix coalescing for page_pool fragment recycling
2022-04-01 11:57:58 +01:00
skmsg.c
bpf, sockmap: Fix memleak in tcp_bpf_sendmsg while sk msg is full
2022-03-15 16:43:31 +01:00
sock_destructor.h
skb_expand_head() adjust skb->truesize incorrectly
2021-10-22 12:35:51 -07:00
sock_diag.c
net: Don't include filter.h from net/sock.h
2021-12-29 08:48:14 -08:00
sock_map.c
bpf: support BPF_PROG_QUERY for progs attached to sockmap
2022-01-20 21:30:58 -08:00
sock_reuseport.c
tcp: Add stats for socket migration.
2021-06-23 12:56:08 -07:00
sock.c
net: remove noblock parameter from recvmsg() entities
2022-04-12 15:00:25 +02:00
stream.c
net: stream: don't purge sk_error_queue in sk_stream_kill_queues()
2021-10-16 09:06:09 +01:00
sysctl_net_core.c
net: extract a few internals from netdevice.h
2022-04-07 20:32:09 -07:00
timestamping.c
…
tso.c
net: tso: add UDP segmentation support
2020-06-18 20:46:23 -07:00
utils.c
net: core: Use csum_replace_by_diff() and csum_sub() instead of opencoding
2022-02-21 11:40:44 +00:00
xdp.c
Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2022-03-22 11:18:49 -07:00