linux-stable/net/core
Jakub Kicinski a2232f29bf net: fix removing a namespace with conflicting altnames
[ Upstream commit d09486a04f ]

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: 7663d52209 ("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.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
dev_addr_lists.c net: extract a few internals from netdevice.h 2022-04-07 20:32:09 -07:00
dev_addr_lists_test.c
dev_ioctl.c net: rename reference+tracking helpers 2022-06-09 21:52:55 -07:00
drop_monitor.c drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group 2023-12-13 18:39:12 +01:00
dst.c ipv6: remove max_size check inline with ipv4 2024-01-15 18:54:51 +01:00
dst_cache.c
failover.c net: rename reference+tracking helpers 2022-06-09 21:52:55 -07:00
fib_notifier.c
fib_rules.c
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
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.c skb: Do mix page pool and page referenced frags in GRO 2023-02-09 11:28:05 +01:00
gro_cells.c net: drop the weight argument from netif_napi_add 2022-09-28 18:57:14 -07:00
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-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-traces.c
net_namespace.c net: fix UaF in netns ops registration error path 2023-02-01 08:34:43 +01:00
netclassid_cgroup.c core: Variable type completion 2022-08-31 09:40:34 +01:00
netevent.c
netpoll.c net: don't let netpoll invoke NAPI if in xmit context 2023-04-13 16:55:21 +02:00
netprio_cgroup.c
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
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.c udp: fix busy polling 2024-01-31 16:17:04 -08:00
sock_destructor.h
sock_diag.c
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
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
tso.c
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