Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date: Fri, 11 Apr 2014 13:56:34 +0200
From: Petr Matousek <>
Cc: Mateusz Guzik <>
Subject: CVE request -- Linux kernel: net: ping: refcount issue in
 ping_init_sock() function

A flaw was found in the way ping_init_sock() function handled group_info
struct reference counter. Since group_info refcounter is only
incremented but never decremented in this codepath, it could lead to
refcounter overflow and possibly to use-after-free issue later.

An unprivileged local user could use this flaw to crash the system or,
potentially, escalate their privileges on the system.

Upstream patch proposal:


Petr Matousek / Red Hat Security Response Team
PGP: 0xC44977CA 8107 AF16 A416 F9AF 18F3  D874 3E78 6F42 C449 77CA

Powered by blists - more mailing lists

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.