asgardius/android_kernel_motorola_sm6225
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

net/tls: swap sk_write_space on close

Browse source 
[ Upstream commit 57c722e932cfb82e9820bbaae1b1f7222ea97b52 ]

Now that we swap the original proto and clear the ULP pointer
on close we have to make sure no callback will try to access
the freed state. sk_write_space is not part of sk_prot, remember
to swap it.

Reported-by: syzbot+dcdc9deefaec44785f32@syzkaller.appspotmail.com
Fixes: 95fa145479fb ("bpf: sockmap/tls, close can race with map free")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jakub Kicinski 2019-08-09 18:36:23 -07:00 committed by Greg Kroah-Hartman
parent f7009bbaff
commit fdc4400e96
1 changed files with 1 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
net/tls/tls_main.c
View file

@ -301,6 +301,7 @@ static void tls_sk_proto_close(struct sock *sk, long timeout)
#else
{
#endif
sk->sk_write_space = ctx->sk_write_space;
tls_ctx_free(ctx);
ctx = NULL;
}