netdev - [PATCH net 0/2] sctp: fix a NULL pointer dereference in sctp_sched_dequeue

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <cover.1667598261.git.lucien.xin@gmail.com>
Date:   Fri,  4 Nov 2022 17:45:14 -0400
From:   Xin Long <lucien.xin@...il.com>
To:     network dev <netdev@...r.kernel.org>, linux-sctp@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        Neil Horman <nhorman@...driver.com>, chenzhen126@...wei.com,
        caowangbao@...wei.com
Subject: [PATCH net 0/2] sctp: fix a NULL pointer dereference in sctp_sched_dequeue_common

This issue was triggered with SCTP_PR_SCTP_PRIO in sctp,
and caused by not checking and fixing stream->out_curr
after removing a chunk from this stream.

Patch 1 removes an unnecessary check and makes the real
fix easier to add in Patch 2.

Xin Long (2):
  sctp: remove the unnecessary sinfo_stream check in
    sctp_prsctp_prune_unsent
  sctp: clear out_curr if all frag chunks of current msg are pruned

 net/sctp/outqueue.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

-- 
2.31.1