Sascha Hauer 54001d0f2f net: tls: wait for async completion on last message ... When asynchronous encryption is used KTLS sends out the final data at proto->close time. This becomes problematic when the task calling close() receives a signal. In this case it can happen that tcp_sendmsg_locked() called at close time returns -ERESTARTSYS and the final data is not sent. The described situation happens when KTLS is used in conjunction with io_uring, as io_uring uses task_work_add() to add work to the current userspace task. A discussion of the problem along with a reproducer can be found in [1] and [2] Fix this by waiting for the asynchronous encryption to be completed on the final message. With this there is no data left to be sent at close time. [1] https://lore.kernel.org/all/20231010141932.GD3114228@pengutronix.de/ [2] https://lore.kernel.org/all/20240315100159.3898944-1-s.hauer@pengutronix.de/ Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Link: https://patch.msgid.link/20240904-ktls-wait-async-v1-1-a62892833110@pengutronix.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2024-09-06 18:20:55 -07:00
..
Kconfig
Makefile
tls.h
tls_device.c	tcp: add a helper for setting EOR on tail skb	2024-06-04 13:23:30 +02:00
tls_device_fallback.c
tls_main.c	net: tls: Pass union tls_crypto_context pointer to memzero_explicit	2024-07-09 11:14:47 -07:00
tls_proc.c
tls_strp.c
tls_sw.c	net: tls: wait for async completion on last message	2024-09-06 18:20:55 -07:00
tls_toe.c
trace.c
trace.h