Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Kuniyuki Iwashima 0c2651c763 dccp/tcp: Avoid negative sk_forward_alloc by ipv6_pinfo.pktoptions. ... commit ca43ccf41224b023fc290073d5603a755fd12eed upstream. Eric Dumazet pointed out [0] that when we call skb_set_owner_r() for ipv6_pinfo.pktoptions, sk_rmem_schedule() has not been called, resulting in a negative sk_forward_alloc. We add a new helper which clones a skb and sets its owner only when sk_rmem_schedule() succeeds. Note that we move skb_set_owner_r() forward in (dccp|tcp)_v6_do_rcv() because tcp_send_synack() can make sk_forward_alloc negative before ipv6_opt_accepted() in the crossed SYN-ACK or self-connect() cases. [0]: https://lore.kernel.org/netdev/CANn89iK9oc20Jdi_41jb9URdF210r7d1Y-+uypbMSbOfY6jqrg@mail.gmail.com/ Fixes: 323fbd0edf ("net: dccp: Add handling of IPV6_PKTOPTIONS to dccp_v6_do_rcv()") Fixes: 3df80d9320 ("[DCCP]: Introduce DCCPv6") Fixes: 1da177e4c3 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-02-22 12:50:40 +01:00
..
ccids
ackvec.c
ackvec.h
ccid.c
ccid.h
dccp.h
diag.c
feat.c
feat.h
input.c
ipv4.c	dccp/tcp: Reset saddr on failure after inet6?_hash_connect().	2022-12-08 11:22:59 +01:00
ipv6.c	dccp/tcp: Avoid negative sk_forward_alloc by ipv6_pinfo.pktoptions.	2023-02-22 12:50:40 +01:00
ipv6.h
Kconfig
Makefile
minisocks.c	dccp: don't duplicate ccid when cloning dccp sock	2021-09-22 12:26:40 +02:00
options.c
output.c
proto.c	dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock	2022-08-25 11:17:49 +02:00
qpolicy.c
sysctl.c
timer.c
trace.h