This is a note to let you know that I've just added the patch titled [PATCH stable 5.8 08/25] chelsio/chtls: fix writing freed memory to the 5.8-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: chelsio-chtls-fix-writing-freed-memory.patch and it can be found in the queue-5.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From foo@baz Sat Oct 24 10:56:27 AM CEST 2020 From: Vinay Kumar Yadav <vinay.yadav@xxxxxxxxxxx> Date: Mon, 19 Oct 2020 17:20:25 +0530 Subject: [PATCH stable 5.8 08/25] chelsio/chtls: fix writing freed memory From: Vinay Kumar Yadav <vinay.yadav@xxxxxxxxxxx> [ Upstream commit da1a039bcf293e4699d413c9f65d975da2d7c0bd ] When chtls_sock *csk is freed, same memory can be allocated to different csk in chtls_sock_create(). csk->cdev = NULL; statement might ends up modifying wrong csk, eventually causing kernel panic. removing (csk->cdev = NULL) statement as it is not required. Fixes: 3a0a97838923 ("crypto/chtls: Fix chtls crash in connection cleanup") Signed-off-by: Vinay Kumar Yadav <vinay.yadav@xxxxxxxxxxx> Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/crypto/chelsio/chtls/chtls_cm.c | 1 - 1 file changed, 1 deletion(-) --- a/drivers/crypto/chelsio/chtls/chtls_cm.c +++ b/drivers/crypto/chelsio/chtls/chtls_cm.c @@ -483,7 +483,6 @@ void chtls_destroy_sock(struct sock *sk) chtls_purge_write_queue(sk); free_tls_keyid(sk); kref_put(&csk->kref, chtls_sock_release); - csk->cdev = NULL; if (sk->sk_family == AF_INET) sk->sk_prot = &tcp_prot; #if IS_ENABLED(CONFIG_IPV6) Patches currently in stable-queue which might be from vinay.yadav@xxxxxxxxxxx are queue-5.8/chelsio-chtls-fix-panic-when-server-is-on-ipv6.patch queue-5.8/chelsio-chtls-fix-writing-freed-memory.patch queue-5.8/chelsio-chtls-fix-socket-lock.patch queue-5.8/chelsio-chtls-correct-netdevice-for-vlan-interface.patch queue-5.8/chelsio-chtls-correct-function-return-and-return-type.patch queue-5.8/chelsio-chtls-fix-panic-when-listen-on-multiadapter.patch