Reference in a new issue

Blame

Copy permalink

Reference in a new issue

Copy permalink

Breno Leitao b018706f5f netpoll: hold rcu read lock in __netpoll_send_skb() ... [ Upstream commit 505ead7ab7 ] The function __netpoll_send_skb() is being invoked without holding the RCU read lock. This oversight triggers a warning message when CONFIG_PROVE_RCU_LIST is enabled: net/core/netpoll.c:330 suspicious rcu_dereference_check() usage! netpoll_send_skb netpoll_send_udp write_ext_msg console_flush_all console_unlock vprintk_emit To prevent npinfo from disappearing unexpectedly, ensure that __netpoll_send_skb() is protected with the RCU read lock. Fixes: 2899656b49 ("netpoll: take rcu_read_lock_bh() in netpoll_send_skb_on_dev()") Signed-off-by: Breno Leitao <leitao@debian.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250306-netpoll_rcu_v2-v2-1-bc4f5c51742a@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2025-04-10 14:31:49 +02:00
..
bpf_sk_storage.c	bpf: Add length check for SK_DIAG_BPF_STORAGE_REQ_MAP_FD parsing	2023-08-11 15:13:50 +02:00
datagram.c	net: fix rc7's __skb_datagram_iter()	2024-07-18 13:07:37 +02:00
datagram.h	net/core: Allow the compiler to verify declaration and definition consistency	2019-03-27 13:49:44 -07:00
dev.c	net: Add non-RCU dev_getbyhwaddr() helper	2025-03-13 12:50:53 +01:00
dev_addr_lists.c	net: dev_addr_list: handle first address in __hw_addr_add_ex	2021-09-30 13:29:09 +01:00
dev_ioctl.c	net: dev: Convert sa_data to flexible array in struct sockaddr	2024-03-01 13:21:59 +01:00
devlink.c	devlink: report devlink_port_type_warn source device	2024-03-01 13:21:55 +01:00
drop_monitor.c	drop_monitor: fix incorrect initialization order	2025-03-13 12:50:53 +01:00
dst.c	net: do not delay dst_entries_add() in dst_release()	2024-11-14 13:13:40 +01:00
dst_cache.c	wireguard: device: reset peer src endpoint when netns exits	2021-12-08 09:04:46 +01:00
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	ipv6: fix memory leak in fib6_rule_suppress	2021-12-08 09:04:43 +01:00
filter.c	bpf: Fix bpf_sk_select_reuseport() memory leak	2025-01-23 17:15:58 +01:00
flow_dissector.c	flow_dissector: Fix port range key handling in BPF conversion	2025-03-13 12:50:52 +01:00
flow_offload.c	net: extract port range fields from fl_flow_key	2025-03-13 12:50:52 +01:00
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	net: Fix data-races around netdev_max_backlog.	2022-08-31 17:16:42 +02:00
hwbm.c	net: hwbm: Make the hwbm_pool lock a mutex	2019-06-09 19:40:10 -07:00
link_watch.c	net: linkwatch: use system_unbound_wq	2024-08-19 05:45:35 +02:00
lwt_bpf.c	lwt: Fix return values of BPF xmit ops	2023-09-19 12:22:33 +02:00
lwtunnel.c	lwtunnel: Validate RTA_ENCAP_TYPE attribute length	2022-01-11 15:35:14 +01:00
Makefile	of: net: move of_net under net/	2022-03-08 19:12:41 +01:00
neighbour.c	neighbour: use RCU protection in __neigh_notify()	2025-03-13 12:50:44 +01:00
net-procfs.c	net-procfs: show net devices bound packet types	2022-02-01 17:27:08 +01:00
net-sysfs.c	ethtool: check device is present when getting link settings	2024-09-04 13:23:40 +02:00
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
net_namespace.c	net: add exit_batch_rtnl() method	2025-01-23 17:15:58 +01:00
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: hold rcu read lock in __netpoll_send_skb()	2025-04-10 14:31:49 +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	of: net: add a helper for loading netdev->dev_addr	2023-07-27 08:46:59 +02:00
page_pool.c	page_pool: fix inconsistency for page_pool_ring_[un]lock()	2023-06-05 09:21:22 +02:00
pktgen.c	pktgen: Avoid out-of-bounds access in get_imix_entries	2025-01-23 17:15:58 +01:00
ptp_classifier.c	bpf: Refactor BPF_PROG_RUN into a function	2021-08-17 00:45:07 +02:00
request_sock.c	tcp: make sure init the accept_queue's spinlocks once	2024-02-23 08:54:27 +01:00
rtnetlink.c	rtnetlink: Add bulk registration helpers for rtnetlink message handlers.	2024-10-17 15:11:57 +02:00
scm.c	io_uring/unix: drop usage of io_uring socket	2024-03-26 18:21:11 -04:00
secure_seq.c	tcp: Fix data-races around sysctl knobs related to SYN option.	2022-07-29 17:25:22 +02:00
selftests.c	net: selftests: add MTU test	2021-07-22 00:52:04 -07:00
skbuff.c	ipvs: Always clear ipvs_property flag in skb_scrub_packet()	2025-03-13 12:50:57 +01:00
skmsg.c	tcp_bpf: Add sk_rmem_alloc related logic for tcp_bpf ingress redirection	2025-01-09 13:28:37 +01:00
sock.c	net: restrict SO_REUSEPORT to inet sockets	2025-01-09 13:28:47 +01:00
sock_destructor.h	skb_expand_head() adjust skb->truesize incorrectly	2021-10-22 12:35:51 -07:00
sock_diag.c	sock_diag: annotate data-races around sock_diag_handlers[family]	2024-03-26 18:21:17 -04:00
sock_map.c	bpf, sockmap: Fix update element with same	2024-12-19 18:07:18 +01:00
sock_reuseport.c	soreuseport: Fix socket selection for SO_INCOMING_CPU.	2022-12-31 13:14:07 +01:00
stream.c	net: deal with most data-races in sk_wait_event()	2023-05-24 17:36:42 +01:00
sysctl_net_core.c	net: let net.core.dev_weight always be non-zero	2025-03-13 12:49:59 +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: Fix skb->csum update in inet_proto_csum_replace16().	2020-01-24 20:54:30 +01:00
xdp.c	xdp: fix invalid wait context of page_pool_destroy()	2024-08-19 05:44:59 +02:00