Use-after-free vulnerability in drivers/net/ppp/ppp_generic.c in the Linux kernel before 4.5.2...

Vulnerability Description

Use-after-free vulnerability in drivers/net/ppp/ppp_generic.c in the Linux kernel before 4.5.2 allows local users to cause a denial of service (memory corruption and system crash, or spinlock) or possibly have unspecified other impact by removing a network namespace, related to the ppp_register_net_channel and ppp_unregister_channel functions.

References

• http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html
• http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html
• http://www.ubuntu.com/usn/USN-3021-2
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1f461dcdd296eecedaffffc6bae2bfa90bd7eb89
• https://github.com/torvalds/linux/commit/1f461dcdd296eecedaffffc6bae2bfa90bd7eb89
• http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
• http://www.debian.org/security/2016/dsa-3607
• http://www.securitytracker.com/id/1036763
• http://www.openwall.com/lists/oss-security/2016/05/15/2
• http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html
• http://www.ubuntu.com/usn/USN-3021-1
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.2
• https://bugzilla.redhat.com/show_bug.cgi?id=1335803
• http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html
• http://www.securityfocus.com/bid/90605
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html