Hangyu Hua 1fde5782f1 net: tls: fix possible race condition between do_tls_getsockopt_conf() and do_tls_setsockopt_conf()
commit 49c47cc21b5b7a3d8deb18fc57b0aa2ab1286962 upstream.

ctx->crypto_send.info is not protected by lock_sock in
do_tls_getsockopt_conf(). A race condition between do_tls_getsockopt_conf()
and error paths of do_tls_setsockopt_conf() may lead to a use-after-free
or null-deref.

More discussion:  https://lore.kernel.org/all/Y/ht6gQL+u6fj3dG@hog/

Fixes: 3c4d7559159b ("tls: kernel TLS support")
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Link: https://lore.kernel.org/r/20230228023344.9623-1-hbh25y@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Meena Shanmugam <meenashanmugam@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:31 +02:00
2023-04-05 11:23:29 +02:00
2023-03-11 16:39:40 +01:00
2020-10-17 11:18:18 -07:00
2023-03-22 13:30:08 +01:00

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