verify the underlying transport exists before creating a connection in kernel-rds CVE-2015-6937 remote

asked 2017-07-20 11:41:22 +0200

This post is a wiki. Anyone with karma >75 is welcome to improve it.

updated 2017-12-20 00:35:28 +0200

lpr
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http://www.uni-tuebingen....

The __rds_conn_create function in net/rds/connection.c in the Linux kernel through 4.2.3 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by using a socket that was not properly bound. CVSS v2 Base Score: 7.8 HIGH (attack range: remote)

Upstream-commit and 3.2-backport are equal, so implementing in kernel-3.4 for jolla1 should be no problem ...

File affected: kernel-adaptation-sbj-3.4.108.20161101.1/net/rds/connection.c lines 178-183