linux/net/mctp
Paolo Abeni 6e54ea37e3 net: mctp: hold key reference when looking up a general key
Currently, we have a race where we look up a sock through a "general"
(ie, not directly associated with the (src,dest,tag) tuple) key, then
drop the key reference while still holding the key's sock.

This change expands the key reference until we've finished using the
sock, and hence the sock reference too.

Commit message changes from Jeremy Kerr <jk@codeconstruct.com.au>.

Reported-by: Noam Rathaus <noamr@ssd-disclosure.com>
Fixes: 73c618456d ("mctp: locking, lifetime and validity changes for sk_keys")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-01-25 13:07:37 +00:00
..
test Networking changes for 5.19. 2022-05-25 12:22:58 -07:00
af_mctp.c net: mctp: move expiry timer delete to unhash 2023-01-25 13:07:37 +00:00
device.c mctp: Remove device type check at unregister 2022-12-19 17:20:22 -08:00
Kconfig mctp: Add flow extension to skb 2021-10-29 13:23:51 +01:00
Makefile mctp: Add test utils 2021-10-03 14:35:41 +01:00
neigh.c mctp: replace mctp_address_ok with more fine-grained helpers 2022-02-18 21:24:28 -08:00
route.c net: mctp: hold key reference when looking up a general key 2023-01-25 13:07:37 +00:00