From 584f3742890e966d2f0a1f3c418c9ead70b2d99e Mon Sep 17 00:00:00 2001 From: Pietro Borrello Date: Sat, 4 Feb 2023 17:39:20 +0000 Subject: net: add sock_init_data_uid() Add sock_init_data_uid() to explicitly initialize the socket uid. To initialise the socket uid, sock_init_data() assumes a the struct socket* sock is always embedded in a struct socket_alloc, used to access the corresponding inode uid. This may not be true. Examples are sockets created in tun_chr_open() and tap_open(). Fixes: 86741ec25462 ("net: core: Add a UID field to struct sock.") Signed-off-by: Pietro Borrello Reviewed-by: Eric Dumazet Signed-off-by: David S. Miller --- include/net/sock.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/net/sock.h b/include/net/sock.h index dcd72e6285b2..937e842dc930 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1956,7 +1956,12 @@ void sk_common_release(struct sock *sk); * Default socket callbacks and setup code */ -/* Initialise core socket variables */ +/* Initialise core socket variables using an explicit uid. */ +void sock_init_data_uid(struct socket *sock, struct sock *sk, kuid_t uid); + +/* Initialise core socket variables. + * Assumes struct socket *sock is embedded in a struct socket_alloc. + */ void sock_init_data(struct socket *sock, struct sock *sk); /* -- cgit v1.2.3