Description
The bridge multicast implementation in the Linux kernel through 3.10.3 does not check whether a certain timer is armed before modifying the timeout value of that timer, which allows local users to cause a denial of service (BUG and system crash) via vectors involving the shutdown of a KVM virtual machine, related to net/bridge/br_mdb.c and net/bridge/br_multicast.c.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=984743
- https://github.com/torvalds/linux/commit/c7e8e8a8f7a70b343ca1e0f90a31e35ab2d16de1
- linux-kernel-cve20134129-dos(85763) vdb-entry
- [oss-security] 20130715 Re: CVE Request -- Linux kernel: bridge: BUG at kernel/timer.c:729 mailing-list
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c7e8e8a8f7a70b343ca1e0f90a31e35ab2d16de1
- 61193 vdb-entry