Hangyu Hua 49c47cc21b net: tls: fix possible race condition between do_tls_getsockopt_conf() and do_tls_setsockopt_conf() ...

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: 3c4d755915 ("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>

2023-03-01 20:30:01 -08:00

30 KiB

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