TencentOS-kernel/net/core
Joe Stringer eefdf95b3d bpf: Don't refcount LISTEN sockets in sk_assign()
[upstream commit 7ae215d23c12a939005f35d1848ca55b6109b9c0]

Avoid taking a reference on listen sockets by checking the socket type
in the sk_assign and in the corresponding skb_steal_sock() code in the
the transport layer, and by ensuring that the prefetch free (sock_pfree)
function uses the same logic to check whether the socket is refcounted.

Suggested-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Joe Stringer <joe@wand.net.nz>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200329225342.16317-4-joe@wand.net.nz
2022-07-21 11:32:36 +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 bpf, xdp: Start using the BPF dispatcher for XDP 2022-07-21 11:32:32 +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: Don't refcount LISTEN sockets in sk_assign() 2022-07-21 11:32:36 +08:00
flow_dissector.c bpf, netns: Keep attached programs in bpf_prog_array 2022-07-21 11:32:36 +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: Disregard DEAD dst in neigh_update 2021-05-20 16:07:08 +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 net: initialize net->net_cookie at netns setup 2022-03-02 10:48:06 +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 net, sk_msg: Clear sk_user_data pointer on clone if tagged 2022-07-21 11:32:33 +08:00
sock.c bpf: Don't refcount LISTEN sockets in sk_assign() 2022-07-21 11:32:36 +08:00
sock_diag.c bpf, net: Rework cookie generator as per-cpu one 2022-03-02 10:48:06 +08:00
sock_map.c bpf: sockmap: Add UDP support 2022-07-21 11:32:34 +08:00
sock_reuseport.c net: Generate reuseport group ID on group creation 2022-07-21 11:32:33 +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 net:add sysctl to enable/disable forced caps 2022-03-02 10:48:05 +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