Sabrina Dubroca 08562ca971 tls: fix peeking with sync+async decryption ... [ Upstream commit 6caaf10442 ] If we peek from 2 records with a currently empty rx_list, and the first record is decrypted synchronously but the second record is decrypted async, the following happens: 1. decrypt record 1 (sync) 2. copy from record 1 to the userspace's msg 3. queue the decrypted record to rx_list for future read(!PEEK) 4. decrypt record 2 (async) 5. queue record 2 to rx_list 6. call process_rx_list to copy data from the 2nd record We currently pass copied=0 as skip offset to process_rx_list, so we end up copying once again from the first record. We should skip over the data we've already copied. Seen with selftest tls.12_aes_gcm.recv_peek_large_buf_mult_recs Fixes: 692d7b5d1f ("tls: Fix recvmsg() to be able to peek across multiple records") Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Link: https://lore.kernel.org/r/1b132d2b2b99296bfde54e8a67672d90d6d16e71.1709132643.git.sd@queasysnail.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-03-06 14:45:09 +00:00
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Kconfig	net/tls: Select SOCK_RX_QUEUE_MAPPING from TLS_DEVICE	2021-02-11 19:08:06 -08:00
Makefile	tls: rx: async: hold onto the input skb	2022-07-18 11:24:11 +01:00
tls.h	tls/sw: Use splice_eof() to flush	2024-02-23 09:12:30 +01:00
tls_device.c	net: tls: avoid discarding data on record close	2023-08-16 18:27:27 +02:00
tls_device_fallback.c	net/tls: Fix memory leak in tls_enc_skb() and tls_sw_fallback_init()	2022-11-11 20:08:17 -08:00
tls_main.c	mptcp: fix lockless access in subflow ULP diag	2024-03-01 13:26:34 +01:00
tls_proc.c	tls: rx: add counter for NoPad violations	2022-07-11 19:48:33 -07:00
tls_strp.c	tls: improve lockless access safety of tls_err_abort()	2023-06-09 10:34:01 +02:00
tls_sw.c	tls: fix peeking with sync+async decryption	2024-03-06 14:45:09 +00:00
tls_toe.c	tls: create an internal header	2022-07-08 18:38:45 -07:00
trace.c
trace.h	net/tls: add device decrypted trace point	2019-10-05 16:29:00 -07:00