diff options
Diffstat (limited to '0001-dccp-tcp-do-not-inherit-mc_list-from-parent.patch')
| -rw-r--r-- | 0001-dccp-tcp-do-not-inherit-mc_list-from-parent.patch | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/0001-dccp-tcp-do-not-inherit-mc_list-from-parent.patch b/0001-dccp-tcp-do-not-inherit-mc_list-from-parent.patch deleted file mode 100644 index 677841397..000000000 --- a/0001-dccp-tcp-do-not-inherit-mc_list-from-parent.patch +++ /dev/null @@ -1,41 +0,0 @@ -From 657831ffc38e30092a2d5f03d385d710eb88b09a Mon Sep 17 00:00:00 2001 -From: Eric Dumazet <edumazet@google.com> -Date: Tue, 9 May 2017 06:29:19 -0700 -Subject: [PATCH] dccp/tcp: do not inherit mc_list from parent - -syzkaller found a way to trigger double frees from ip_mc_drop_socket() - -It turns out that leave a copy of parent mc_list at accept() time, -which is very bad. - -Very similar to commit 8b485ce69876 ("tcp: do not inherit -fastopen_req from parent") - -Initial report from Pray3r, completed by Andrey one. -Thanks a lot to them ! - -Signed-off-by: Eric Dumazet <edumazet@google.com> -Reported-by: Pray3r <pray3r.z@gmail.com> -Reported-by: Andrey Konovalov <andreyknvl@google.com> -Tested-by: Andrey Konovalov <andreyknvl@google.com> -Signed-off-by: David S. Miller <davem@davemloft.net> ---- - net/ipv4/inet_connection_sock.c | 2 ++ - 1 file changed, 2 insertions(+) - -diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c -index 5e313c1..1054d33 100644 ---- a/net/ipv4/inet_connection_sock.c -+++ b/net/ipv4/inet_connection_sock.c -@@ -794,6 +794,8 @@ struct sock *inet_csk_clone_lock(const struct sock *sk, - /* listeners have SOCK_RCU_FREE, not the children */ - sock_reset_flag(newsk, SOCK_RCU_FREE); - -+ inet_sk(newsk)->mc_list = NULL; -+ - newsk->sk_mark = inet_rsk(req)->ir_mark; - atomic64_set(&newsk->sk_cookie, - atomic64_read(&inet_rsk(req)->ir_cookie)); --- -2.9.4 - |