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Dmitry Safonov b901a4e276 net/tcp_sigpool: Use kref_get_unless_zero() 
The freeing and re-allocation of algorithm are protected by cpool_mutex,
so it doesn't fix an actual use-after-free, but avoids a deserved
refcount_warn_saturate() warning.

A trivial fix for the racy behavior.

Fixes: 8c73b26315aa ("net/tcp: Prepare tcp_md5sig_pool for TCP-AO")
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Dmitry Safonov <dima@arista.com>
Tested-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-01 14:42:05 +00:00
..
6lowpan
…
9p
9p/net: fix possible memory leak in p9_check_errors()
2023-10-27 12:44:13 +09:00
802
net: fill in MODULE_DESCRIPTION()s under net/802*
2023-10-28 11:29:28 +01:00
8021q
net: check vlan filter feature in vlan_vids_add_by_dev() and vlan_vids_del_by_dev()
2023-12-19 13:13:56 +01:00
appletalk
appletalk: Fix Use-After-Free in atalk_ioctl
2023-12-14 12:02:45 +01:00
atm
atm: Fix Use-After-Free in do_vcc_ioctl
2023-12-12 13:14:08 +01:00
ax25
net: implement lockless SO_PRIORITY
2023-10-01 19:09:54 +01:00
batman-adv
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2023-08-24 10:51:39 -07:00
bluetooth
Bluetooth: af_bluetooth: Fix Use-After-Free in bt_sock_recvmsg
2023-12-15 11:54:18 -05:00
bpf
bpf: Add __bpf_kfunc_{start,end}_defs macros
2023-11-01 22:33:53 -07:00
bpfilter
…
bridge
netfilter: nf_conntrack_bridge: initialize err to 0
2023-11-14 16:16:21 +01:00
caif
sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)
2023-06-24 15:50:13 -07:00
can
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2023-10-12 17:07:34 -07:00
ceph
This update includes the following changes:
2023-11-02 16:15:30 -10:00
core
bpf-for-netdev
2023-12-21 12:27:29 +01:00
dcb
net: dcb: choose correct policy to parse DCB_ATTR_BCN
2023-08-01 21:07:46 -07:00
dccp
dccp/tcp: Call security_inet_conn_request() after setting IPv6 addresses.
2023-11-02 12:56:03 +01:00
devlink
netlink: specs: devlink: add forgotten port function caps enum values
2023-11-01 22:13:43 -07:00
dns_resolver
…
dsa
net: dsa: Rename IFLA_DSA_MASTER to IFLA_DSA_CONDUIT
2023-10-24 13:08:14 -07:00
ethernet
…
ethtool
ethtool: don't propagate EOPNOTSUPP from dumps
2023-11-29 08:43:27 -08:00
handshake
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2023-10-26 13:46:28 -07:00
hsr
hsr: Prevent use after free in prp_create_tagged_frame()
2023-11-01 22:26:04 -07:00
ieee802154
sysctl-6.6-rc1
2023-08-29 17:39:15 -07:00
ife
net: sched: ife: fix potential use-after-free
2023-12-15 10:50:18 +00:00
ipv4
net/tcp_sigpool: Use kref_get_unless_zero()
2024-01-01 14:42:05 +00:00
ipv6
net/ipv6: Revert remove expired routes with a separated list of routes
2023-12-21 09:01:30 +01:00
iucv
s390: use control register bit defines
2023-09-19 13:26:57 +02:00
kcm
net: kcm: fill in MODULE_DESCRIPTION()
2023-11-08 18:17:44 -08:00
key
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2023-08-18 12:44:56 -07:00
l2tp
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2023-10-05 13:16:47 -07:00
l3mdev
…
lapb
…
llc
llc: verify mac len before reading mac header
2023-11-01 22:21:32 -07:00
mac80211
wifi: mac80211: add/remove driver debugfs entries as appropriate
2023-12-19 13:08:00 +01:00
mac802154
Core WPAN changes:
2023-06-24 15:41:46 -07:00
mctp
mctp: perform route lookups under a RCU read-side lock
2023-10-10 19:43:22 -07:00
mpls
networking: Update to register_net_sysctl_sz
2023-08-15 15:26:18 -07:00
mptcp
mptcp: fill in missing MODULE_DESCRIPTION()
2023-12-17 20:54:22 +00:00
ncsi
Revert ncsi: Propagate carrier gain/loss events to the NCSI controller
2023-11-15 09:59:44 +00:00
netfilter
netfilter: nf_tables: skip set commit for deleted/destroyed sets
2023-12-20 13:48:00 +01:00
netlabel
netlabel: Remove unused declaration netlbl_cipsov4_doi_free()
2023-08-02 12:28:22 -07:00
netlink
drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group
2023-12-07 09:54:02 -08:00
netrom
net: implement lockless SO_PRIORITY
2023-10-01 19:09:54 +01:00
nfc
nfc: Do not send datagram if socket state isn't LLCP_BOUND
2023-12-25 07:29:04 +00:00
nsh
…
openvswitch
net/sched: act_ct: Always fill offloading tuple iifidx
2023-11-08 17:47:08 -08:00
packet
packet: Move reference count in packet_sock to atomic_long_t
2023-12-04 14:45:04 -08:00
phonet
sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)
2023-06-24 15:50:13 -07:00
psample
psample: Require 'CAP_NET_ADMIN' when joining "packets" group
2023-12-07 09:54:02 -08:00
qrtr
net: qrtr: Handle IPCR control port format of older targets
2023-07-17 09:02:30 +01:00
rds
net: prevent address rewrite in kernel_bind()
2023-10-01 19:31:29 +01:00
rfkill
net: rfkill: gpio: set GPIO direction
2023-12-12 10:14:57 +01:00
rose
net/rose: fix races in rose_kill_by_device()
2023-12-15 11:59:53 +00:00
rxrpc
rxrpc: Defer the response to a PING ACK until we've parsed it
2023-11-17 02:50:33 +00:00
sched
net: sched: em_text: fix possible memory leak in em_text_destroy()
2024-01-01 13:08:15 +00:00
sctp
net: fill in MODULE_DESCRIPTION()s for SOCK_DIAG modules
2023-11-19 20:09:13 +00:00
smc
net/smc: fix missing byte order conversion in CLC handshake
2023-12-07 10:10:56 -08:00
strparser
…
sunrpc
nfsd-6.7 fixes:
2023-12-20 11:16:50 -08:00
switchdev
net: switchdev: Add a helper to replay objects on a bridge port
2023-07-21 08:54:03 +01:00
tipc
net: fill in MODULE_DESCRIPTION()s for SOCK_DIAG modules
2023-11-19 20:09:13 +00:00
tls
net: tls, update curr on splice as well
2023-12-07 09:52:28 -08:00
unix
bpf, sockmap: af_unix stream sockets need to hold ref for pair sock
2023-11-30 00:25:16 +01:00
vmw_vsock
vsock/virtio: Fix unsigned integer wrap around in virtio_transport_has_space()
2023-12-13 17:59:08 -08:00
wireless
wifi: cfg80211: fix certs build to not depend on file order
2023-12-14 09:11:51 +01:00
x25
net: implement lockless SO_PRIORITY
2023-10-01 19:09:54 +01:00
xdp
xsk: Skip polling event check for unbound socket
2023-12-05 13:43:43 +01:00
xfrm
Including fixes from netfilter and bpf.
2023-11-09 17:09:35 -08:00
compat.c
…
devres.c
…
Kconfig
net: add skb_segment kunit test
2023-10-11 10:39:01 +01:00
Kconfig.debug
…
Makefile
…
socket.c
bpf: Add __bpf_hook_{start,end} macros
2023-11-01 22:33:53 -07:00
sysctl_net.c
sysctl: Add size to register_net_sysctl function
2023-08-15 15:26:17 -07:00