Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1257602

Re: [PATCH net] RDS-TCP: Recover correctly from pskb_pull()/pksb_trim() failure in rds_tcp_data_recv

Show all headers | View raw

From: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Date: Mon, 26 Oct 2015 12:46:37 -0400

> Either of pskb_pull() or pskb_trim() may fail under low memory conditions.
> If rds_tcp_data_recv() ignores such failures, the application will
> receive corrupted data because the skb has not been correctly
> carved to the RDS datagram size.
> 
> Avoid this by handling pskb_pull/pskb_trim failure in the same
> manner as the skb_clone failure: bail out of rds_tcp_data_recv(), and
> retry via the deferred call to rds_send_worker() that gets set up on
> ENOMEM from rds_tcp_read_sock()
> 
> Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>

Applied and queued up for -stable, thanks.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

[PATCH net] RDS-TCP: Recover correctly from pskb_pull()/pksb_trim()  failure in rds_tcp_data_recv Sowmini Varadhan <sowmini.varadhan@oracle.com> - 2015-10-26 17:50 +0100
  Re: [PATCH net] RDS-TCP: Recover correctly from  pskb_pull()/pksb_trim() failure in rds_tcp_data_recv santosh shilimkar <santosh.shilimkar@oracle.com> - 2015-10-26 18:00 +0100
  Re: [PATCH net] RDS-TCP: Recover correctly from  pskb_pull()/pksb_trim() failure in rds_tcp_data_recv David Miller <davem@davemloft.net> - 2015-10-28 03:40 +0100

csiph-web