Paolo Abeni 838ee7e9f6 net: let skb_orphan_partial wake-up waiters. ... commit 9adc89af724f12a03b47099cd943ed54e877cd59 upstream. Currently the mentioned helper can end-up freeing the socket wmem without waking-up any processes waiting for more write memory. If the partially orphaned skb is attached to an UDP (or raw) socket, the lack of wake-up can hang the user-space. Even for TCP sockets not calling the sk destructor could have bad effects on TSQ. Address the issue using skb_orphan to release the sk wmem before setting the new sock_efree destructor. Additionally bundle the whole ownership update in a new helper, so that later other potential users could avoid duplicate code. v1 -> v2: - use skb_orphan() instead of sort of open coding it (Eric) - provide an helper for the ownership change (Eric) Fixes: f6ba8d33cfbb ("netem: fix skb_orphan_partial()") Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-05-20 16:06:57 +08:00
..
Makefile	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
bpf_sk_storage.c	bpf: Switch bpf_map ref counter to atomic64_t so bpf_map_inc() never fails	2021-03-16 16:43:58 +08:00
datagram.c	udp: fix skb_copy_and_csum_datagram with odd segment sizes	2021-04-12 12:52:05 +08:00
datagram.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
dev.c	can: dev: Move device back to init netns on owning netns delete	2021-04-12 12:53:32 +08:00
dev_addr_lists.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
dev_ioctl.c	net: fix dev_ifsioc_locked() race condition	2021-04-12 12:52:45 +08:00
devlink.c	devlink: Hold rtnl lock while reading netdev attributes	2021-03-16 16:41:51 +08:00
drop_monitor.c	drop_monitor: work around gcc-10 stringop-overflow warning	2021-03-16 16:27:46 +08:00
dst.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
dst_cache.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
ethtool.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
failover.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
fib_notifier.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
fib_rules.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
filter.c	bpf: Remove MTU check in __bpf_skb_max_len	2021-05-20 16:06:48 +08:00
flow_dissector.c	flow_dissector: fix TTL and TOS dissection on IPv4 fragments	2021-05-20 16:06:47 +08:00
flow_offload.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
gen_estimator.c	net_sched: gen_estimator: support large ewma log	2021-04-12 12:51:50 +08:00
gen_stats.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
gro_cells.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
hwbm.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
link_watch.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
lwt_bpf.c	lwt: Disable BH too in run_lwt_bpf()	2021-03-16 16:43:20 +08:00
lwtunnel.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
neighbour.c	neighbour: Prevent a dead entry from updating gc_list	2021-04-12 12:51:58 +08:00
net-procfs.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
net-sysfs.c	net-sysfs: take the rtnl lock when accessing xps_rxqs_map and num_tc	2021-04-12 12:51:08 +08:00
net-sysfs.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
net-traces.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
net_namespace.c	merge bpf_get_netns_cookie from f318903c0bf42448b4c884732df2bbb0ef7a2284.	2021-03-16 16:43:59 +08:00
netclassid_cgroup.c	cgroup, netclassid: remove double cond_resched	2021-03-16 16:27:30 +08:00
netevent.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
netpoll.c	net: Have netpoll bring-up DSA management interface	2021-03-16 16:41:06 +08:00
netprio_cgroup.c	netprio_cgroup: Fix unlimited memory leak of v2 cgroups	2021-03-16 16:27:49 +08:00
page_pool.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
pktgen.c	pktgen: fix misuse of BUG_ON() in pktgen_thread_worker()	2021-04-12 12:52:46 +08:00
ptp_classifier.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
request_sock.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
rtnetlink.c	net: fix dev_ifsioc_locked() race condition	2021-04-12 12:52:45 +08:00
scm.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
secure_seq.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
skbuff.c	net: fix up truesize of cloned skb in skb_prepare_for_shift()	2021-04-12 12:52:44 +08:00
skmsg.c	bpf, sockmap: Avoid returning unneeded EAGAIN when redirecting to self	2021-03-16 16:41:24 +08:00
sock.c	net: let skb_orphan_partial wake-up waiters.	2021-05-20 16:06:57 +08:00
sock_diag.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
sock_map.c	bpf: sockmap: Require attach_bpf_fd when detaching a program	2021-03-16 16:32:59 +08:00
sock_reuseport.c	udp: Prevent reuseport_select_sock from reading uninitialized socks	2021-04-12 12:51:29 +08:00
stream.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
sysctl_net_core.c	bpf: Check correct cred for CAP_SYSLOG in bpf_dump_raw_ok()	2021-03-16 16:31:38 +08:00
timestamping.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
tso.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
utils.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xdp.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00