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Daniel Hodges b559be2ec6 SUNRPC: fix gss_auth kref leak in gss_alloc_msg error path 
commit dd2fdc3504 upstream.

Commit 5940d1cf9f ("SUNRPC: Rebalance a kref in auth_gss.c") added
a kref_get(&gss_auth->kref) call to balance the gss_put_auth() done
in gss_release_msg(), but forgot to add a corresponding kref_put()
on the error path when kstrdup_const() fails.

If service_name is non-NULL and kstrdup_const() fails, the function
jumps to err_put_pipe_version which calls put_pipe_version() and
kfree(gss_msg), but never releases the gss_auth reference. This leads
to a kref leak where the gss_auth structure is never freed.

Add a forward declaration for gss_free_callback() and call kref_put()
in the err_put_pipe_version error path to properly release the
reference taken earlier.

Fixes: 5940d1cf9f ("SUNRPC: Rebalance a kref in auth_gss.c")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Hodges <git@danielhodges.dev>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2026-03-04 07:19:55 -05:00
..
6lowpan 6lowpan: iphc: Fix an off-by-one check of array index 2021-07-22 16:19:03 +02:00
9p net/9p: fix double req put in p9_fd_cancelled 2025-10-19 16:21:28 +02:00
802 net: 802: LLC+SNAP OID:PID lookup on start of skb data 2025-01-23 17:15:49 +01:00
8021q net: vlan: sync VLAN features with lower device 2025-12-07 06:09:26 +09:00
appletalk net: appletalk: Fix use-after-free in AARP proxy probe 2025-08-28 16:24:04 +02:00
atm net: atm: fix crash due to unvalidated vcc pointer in sigd_send() 2026-03-04 07:19:38 -05:00
ax25 ax25: properly unshare skbs in ax25_kiss_rcv() 2025-09-09 18:50:20 +02:00
batman-adv batman-adv: fix OOB read/write in network-coding decode 2025-09-09 18:50:21 +02:00
bluetooth Bluetooth: hci_event: call disconnect callback before deleting conn 2026-02-11 13:35:34 +01:00
bpf bpf: Do not let BPF test infra emit invalid GSO types to stack 2026-02-06 16:41:58 +01:00
bpfilter bpfilter: Specify the log level for the kmsg message 2021-06-25 13:13:50 +02:00
bridge netfilter: replace -EEXIST with -EBUSY 2026-02-11 13:35:30 +01:00
caif caif: fix integer underflow in cffrml_receive() 2026-01-19 13:09:44 +01:00
can net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts 2026-02-06 16:41:47 +01:00
ceph libceph: make calc_target() set t->paused, not just clear it 2026-01-19 13:10:14 +01:00
core net: remove WARN_ON_ONCE when accessing forward path array 2026-03-04 07:19:51 -05:00
dcb net: dcb: choose correct policy to parse DCB_ATTR_BCN 2023-08-11 15:13:53 +02:00
dccp net: fix data-races around sk->sk_forward_alloc 2025-01-23 17:16:04 +01:00
dns_resolver keys, dns: Fix size check of V1 server-list header 2024-01-25 14:52:46 -08:00
dsa net: dsa: free routing table on probe failure 2026-02-19 16:21:45 +01:00
ethernet gro: remove rcu_read_lock/rcu_read_unlock from gro_complete handlers 2024-09-12 11:07:47 +02:00
ethtool ethtool: add support to set/get tx copybreak buf size via ethtool 2026-03-04 07:19:36 -05:00
hsr net/hsr: fix NULL pointer dereference in prp_get_untagged_frame() 2026-01-19 13:09:46 +01:00
ieee802154 net: ieee802154: do not leave a dangling sk pointer in ieee802154_create() 2024-12-14 19:51:37 +01:00
ife net: sched: ife: fix potential use-after-free 2024-01-05 15:13:29 +01:00
ipv4 tcp: tcp_tx_timestamp() must look at the rtx queue 2026-03-04 07:19:35 -05:00
ipv6 espintcp: fix skb leaks 2026-02-06 16:42:03 +01:00
iucv s390/iucv: fix receive buffer virtual vs physical address confusion 2024-09-04 13:23:27 +02:00
kcm kcm: Serialise kcm_sendmsg() for the same socket. 2024-09-04 13:23:32 +02:00
key Revert "xfrm: destroy xfrm_state synchronously on net exit path" 2026-01-19 13:09:18 +01:00
l2tp l2tp: avoid one data-race in l2tp_tunnel_del_work() 2026-02-06 16:41:53 +01:00
l3mdev net: Add l3mdev index to flow struct and avoid oif reset for port devices 2024-10-17 15:11:57 +02:00
lapb net: lapb: Use list_for_each_entry() to simplify code in lapb_iface.c 2021-06-08 16:31:25 -07:00
llc llc: fix data loss when reading from a socket in llc_ui_recvmsg() 2025-06-04 14:38:06 +02:00
mac80211 wifi: mac80211: don't increment crypto_tx_tailroom_needed_cnt twice 2026-02-11 13:35:31 +01:00
mac802154 mac802154: check local interfaces before deleting sdata list 2025-01-23 17:16:00 +01:00
mctp net: mctp: Prevent duplicate binds 2025-08-28 16:24:20 +02:00
mpls mpls: Use rcu_dereference_rtnl() in mpls_route_input_rcu(). 2025-06-27 11:05:36 +01:00
mptcp mptcp: fix race in mptcp_pm_nl_flush_addrs_doit() 2026-02-19 16:21:45 +01:00
ncsi net: ncsi: Fix buffer overflow in fetching version id 2025-08-28 16:24:22 +02:00
netfilter netfilter: nf_conntrack_h323: don't pass uninitialised l3num value 2026-03-04 07:19:51 -05:00
netlabel calipso: unlock rcu before returning -EAFNOSUPPORT 2025-06-27 11:05:22 +01:00
netlink netlink: avoid infinite retry looping in netlink_unicast() 2025-08-28 16:24:15 +02:00
netrom netrom: fix double-free in nr_route_frame() 2026-02-06 16:41:58 +01:00
nfc nfc: hci: shdlc: Stop timers and work before freeing context 2026-03-04 07:19:36 -05:00
nsh nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment(). 2024-05-17 11:50:48 +02:00
openvswitch net: openvswitch: Avoid needlessly taking the RTNL on vport destroy 2026-01-19 13:09:56 +01:00
packet net/packet: fix a race in packet_set_ring() and packet_notifier() 2025-08-28 16:24:14 +02:00
phonet phonet/pep: Move call to pn_skb_get_dst_sockaddr() earlier in pep_sock_accept() 2025-08-28 16:23:59 +02:00
psample psample: Require 'CAP_NET_ADMIN' when joining "packets" group 2023-12-13 18:36:37 +01:00
qrtr net: qrtr: Update packets cloning when broadcasting 2024-10-17 15:11:08 +02:00
rds net/rds: rds_sendmsg should not discard payload_len 2026-03-04 07:19:50 -05:00
rfkill net: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer 2025-10-02 13:39:09 +02:00
rose net: rose: fix invalid array index in rose_kill_by_device() 2026-01-19 13:09:58 +01:00
rxrpc rxrpc: Fix oops due to non-existence of prealloc backlog struct 2025-07-17 18:30:48 +02:00
sched net/sched: act_ife: convert comma to semicolon 2026-02-06 16:42:05 +01:00
sctp sctp: move SCTP_CMD_ASSOC_SHKEY right after SCTP_CMD_PEER_INIT 2026-02-06 16:41:52 +01:00
smc net/smc: fix mismatch between CLC header and proposal 2025-12-07 06:09:27 +09:00
strparser strparser: Fix signed/unsigned mismatch bug 2025-12-07 06:09:29 +09:00
sunrpc SUNRPC: fix gss_auth kref leak in gss_alloc_msg error path 2026-03-04 07:19:55 -05:00
switchdev net: make switchdev_bridge_port_{,unoffload} loosely coupled with the bridge 2021-08-04 12:35:07 +01:00
tipc tipc: use kfree_sensitive() for session key material 2026-02-11 13:35:32 +01:00
tls tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock(). 2026-02-06 16:42:01 +01:00
unix af_unix: Don't leave consecutive consumed OOB skbs. 2025-10-02 13:39:14 +02:00
vmw_vsock vsock: Ignore signal/timeout on connect() if already established 2025-12-07 06:09:31 +09:00
wireless wifi: cfg80211: stop NAN and P2P in cfg80211_leave 2026-03-04 07:19:33 -05:00
x25 net/x25: fix incorrect parameter validation in the x25_getsockopt() function 2024-03-26 18:21:23 -04:00
xdp xsk: fix OOB map writes when deleting elements 2024-12-14 19:51:33 +01:00
xfrm espintcp: fix skb leaks 2026-02-06 16:42:03 +01:00
compat.c net: Return the correct errno code 2021-06-03 15:13:56 -07:00
devres.c net: devres: Correct a grammatical error 2021-06-11 12:55:28 -07:00
Kconfig Remove DECnet support from kernel 2023-06-21 15:59:15 +02:00
Makefile Remove DECnet support from kernel 2023-06-21 15:59:15 +02:00
socket.c net: Remove RTNL dance for SIOCBRADDIF and SIOCBRDELIF. 2026-01-19 13:10:11 +01:00
sysctl_net.c net: Ensure net namespace isolation of sysctls 2021-04-12 13:27:11 -07:00