Xiyu Yang 4107cd9a86 net/tls: Fix sk_psock refcnt leak when in tls_data_ready() ... [ Upstream commit 62b4011fa7bef9fa00a6aeec26e69685dc1cc21e ] tls_data_ready() invokes sk_psock_get(), which returns a reference of the specified sk_psock object to "psock" with increased refcnt. When tls_data_ready() returns, local variable "psock" becomes invalid, so the refcount should be decreased to keep refcount balanced. The reference counting issue happens in one exception handling path of tls_data_ready(). When "psock->ingress_msg" is empty but "psock" is not NULL, the function forgets to decrease the refcnt increased by sk_psock_get(), causing a refcnt leak. Fix this issue by calling sk_psock_put() on all paths when "psock" is not NULL. Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn> Signed-off-by: Xin Tan <tanxin.ctf@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-05-14 07:58:22 +02:00
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Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
tls_device_fallback.c	net: Use skb_frag_off accessors	2019-07-30 14:21:32 -07:00
tls_device.c	net/tls: Fix to avoid gettig invalid tls record	2020-03-05 16:43:32 +01:00
tls_main.c	bpf: Sockmap/tls, push write_space updates through ulp updates	2020-01-23 08:22:45 +01:00
tls_sw.c	net/tls: Fix sk_psock refcnt leak when in tls_data_ready()	2020-05-14 07:58:22 +02:00