Description
net/ipv4/udp.c in the Linux kernel before 2.6.29.1 performs an unlocking step in certain incorrect circumstances, which allows local users to cause a denial of service (panic) by reading zero bytes from the /proc/net/udp file and unspecified other files, related to the "udp seq_file infrastructure."
References
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29.1
- 34478 third-party-advisory
- [oss-security] 20090401 CVE request: kernel: udp: Wrong locking code in udp seq_file infrastructure mailing-list
- 34329 vdb-entry
- linux-kernel-procnetudp-dos(49595) vdb-entry
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=30842f2989aacfaba3ccb39829b3417be9313dbe
- http://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-proc-net-udp-8586
- ADV-2009-0924 vdb-entry