Jakub Kicinski a2232f29bf net: fix removing a namespace with conflicting altnames ... [ Upstream commit d09486a04f5da0a812c26217213b89a3b1acf836 ] Mark reports a BUG() when a net namespace is removed. kernel BUG at net/core/dev.c:11520! Physical interfaces moved outside of init_net get "refunded" to init_net when that namespace disappears. The main interface name may get overwritten in the process if it would have conflicted. We need to also discard all conflicting altnames. Recent fixes addressed ensuring that altnames get moved with the main interface, which surfaced this problem. Reported-by: Марк Коренберг <socketpair@gmail.com> Link: https://lore.kernel.org/all/CAEmTpZFZ4Sv3KwqFOY2WKDHeZYdi0O7N5H1nTvcGp=SAEavtDg@mail.gmail.com/ Fixes: 7663d522099e ("net: check for altname conflicts when changing netdev's netns") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-01-31 16:17:04 -08:00
..
bpf_sk_storage.c	bpf: Add length check for SK_DIAG_BPF_STORAGE_REQ_MAP_FD parsing	2023-08-11 12:08:12 +02:00
datagram.c	net: datagram: fix data-races in datagram_poll()	2023-05-24 17:32:32 +01:00
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: rename reference+tracking helpers	2022-06-09 21:52:55 -07:00
dev.c	net: fix removing a namespace with conflicting altnames	2024-01-31 16:17:04 -08:00
dev.h	net: fix removing a namespace with conflicting altnames	2024-01-31 16:17:04 -08:00
drop_monitor.c	drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group	2023-12-13 18:39:12 +01:00
dst_cache.c	wireguard: device: reset peer src endpoint when netns exits	2021-11-29 19:50:45 -08:00
dst.c	ipv6: remove max_size check inline with ipv4	2024-01-15 18:54:51 +01:00
failover.c	net: rename reference+tracking helpers	2022-06-09 21:52:55 -07:00
fib_notifier.c
fib_rules.c	fib: expand fib_rule_policy	2021-12-16 07:18:35 -08:00
filter.c	bpf: sockmap, updating the sg structure should also update curr	2023-12-13 18:39:11 +01:00
flow_dissector.c	net/core: Fix ETH_P_1588 flow dissector	2023-10-06 14:56:36 +02:00
flow_offload.c	flow_offload: Introduce flow_match_l2tpv3	2022-09-20 09:13:38 +02:00
gen_estimator.c	net: sched: Remove Qdisc::running sequence counter	2021-10-18 12:54:41 +01:00
gen_stats.c	net: sched: fix misuse of qcpu->backlog in gnet_stats_add_queue_cpu	2022-08-16 19:38:20 -07:00
gro_cells.c	net: drop the weight argument from netif_napi_add	2022-09-28 18:57:14 -07:00
gro.c	skb: Do mix page pool and page referenced frags in GRO	2023-02-09 11:28:05 +01:00
hwbm.c
link_watch.c	net: rename reference+tracking helpers	2022-06-09 21:52:55 -07:00
lwt_bpf.c	lwt: Fix return values of BPF xmit ops	2023-09-13 09:42:33 +02:00
lwtunnel.c	xfrm: lwtunnel: squelch kernel warning in case XFRM encap type is not available	2022-10-12 10:45:51 +02:00
Makefile	devlink: move code to a dedicated directory	2023-08-30 16:11:00 +02:00
neighbour.c	neighbour: Don't let neigh_forced_gc() disable preemption for long	2024-01-20 11:50:07 +01:00
net_namespace.c	net: fix UaF in netns ops registration error path	2023-02-01 08:34:43 +01:00
net-procfs.c	net: extract a few internals from netdevice.h	2022-04-07 20:32:09 -07:00
net-sysfs.c	net-sysfs: Convert to use sysfs_emit() APIs	2022-09-30 12:27:44 +01:00
net-sysfs.h	net-sysfs: add netdev_change_owner()	2020-02-26 20:07:25 -08:00
net-traces.c	tcp: add tracepoint for checksum errors	2021-05-14 15:26:03 -07:00
netclassid_cgroup.c	core: Variable type completion	2022-08-31 09:40:34 +01:00
netevent.c	net: core: Correct function name netevent_unregister_notifier() in the kerneldoc	2021-03-28 17:56:56 -07:00
netpoll.c	net: don't let netpoll invoke NAPI if in xmit context	2023-04-13 16:55:21 +02:00
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: add missing free_percpu when page_pool_init fail	2023-11-20 11:52:16 +01:00
pktgen.c	net: pktgen: Fix interface flags printing	2023-10-25 12:03:08 +02:00
ptp_classifier.c	ptp: Add generic PTP is_sync() function	2022-03-07 11:31:34 +00:00
request_sock.c	tcp: make sure init the accept_queue's spinlocks once	2024-01-31 16:17:03 -08:00
rtnetlink.c	Revert "net: rtnetlink: Enslave device before bringing it up"	2024-01-25 15:27:43 -08:00
scm.c	io_uring/af_unix: disable sending io_uring over sockets	2023-12-13 18:39:17 +01:00
secure_seq.c	tcp: Fix data-races around sysctl knobs related to SYN option.	2022-07-20 10:14:49 +01:00
selftests.c	net: core: constify mac addrs in selftests	2021-10-24 13:59:44 +01:00
skbuff.c	net: annotate data-races around sk->sk_tsflags	2024-01-10 17:10:23 +01:00
skmsg.c	bpf, sockmap: af_unix stream sockets need to hold ref for pair sock	2024-01-10 17:10:32 +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: syzkaller found null ptr deref in unix_bpf proto add	2024-01-10 17:10:36 +01:00
sock_reuseport.c	soreuseport: Fix socket selection for SO_INCOMING_CPU.	2022-12-31 13:32:04 +01:00
sock.c	udp: fix busy polling	2024-01-31 16:17:04 -08:00
stream.c	net: Return error from sk_stream_wait_connect() if sk_wait_event() fails	2024-01-01 12:38:56 +00:00
sysctl_net_core.c	net: sysctl: remove unused variable long_max	2022-09-07 15:31:19 +01:00
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: core: Use csum_replace_by_diff() and csum_sub() instead of opencoding	2022-02-21 11:40:44 +00:00
xdp.c	xdp: improve page_pool xdp_return performance	2022-09-26 11:28:19 -07:00