mbox series

[net,v1,0/3] add support for skb with sk ref cloning

Message ID 20210222151247.24534-1-o.rempel@pengutronix.de
Headers show
Series add support for skb with sk ref cloning | expand

Message

Oleksij Rempel Feb. 22, 2021, 3:12 p.m. UTC 
Hello,

this series tries to fix a long standing problem in the CAN echo SKB
handling. The problem shows up if an echo SKB for a SKB that references
an already closed socket is created.

It looks like the mac80211/tx.c has the same problem, see RFC patch 3
for details.

regards,
Oleksij

Oleksij Rempel (3):
  skbuff: skb_clone_sk_optional(): add function to always clone a skb
    and increase refcount on sk if valid
  can: fix ref count warning if socket was closed before skb was cloned
  [RFC] mac80211: ieee80211_store_ack_skb(): make use of
    skb_clone_sk_optional()

 include/linux/can/skb.h   |  3 +--
 include/linux/skbuff.h    |  1 +
 net/can/af_can.c          |  6 +++---
 net/can/j1939/main.c      |  3 +--
 net/can/j1939/socket.c    |  3 +--
 net/can/j1939/transport.c |  4 +---
 net/core/skbuff.c         | 27 +++++++++++++++++++++++++++
 net/mac80211/tx.c         |  6 +-----
 8 files changed, 36 insertions(+), 17 deletions(-)