Candidate: CVE-2009-0859
Description:
 The shm_get_stat function in ipc/shm.c in the shm subsystem
 in the Linux kernel before 2.6.28.5, when CONFIG_SHMEM is
 disabled, misinterprets the data type of an inode, which allows
 local users to cause a denial of service (system hang) via
 an SHM_INFO shmctl call, as demonstrated by running the ipcs
 program. 
References:
 http://marc.info/?l=git-commits-head&m=123387479500599&w=2
 http://marc.info/?l=linux-kernel&m=120428209704324&w=2
 http://marc.info/?l=linux-kernel&m=123309645625549&w=2
 http://openwall.com/lists/oss-security/2009/03/06/1
 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a68e61e8ff2d46327a37b69056998b47745db6fa
 http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.5
 http://patchwork.kernel.org/patch/6554/ 
Ubuntu-Description:
Notes:
 jmm> All Debian kernels set CONFIG_SHMEM, so this is moot except
 jmm> for locally modified configs and even for that I fail to
 jmm> see why anyone would run a kernel w/o CONFIG_SHMEM?
Bugs:
upstream: released (2.6.29-rc4)
linux-2.6: released (2.6.29-1)
2.6.18-etch-security: released (2.6.18.dfsg.1-24etch1) [bugfix/all/shm-fix-shmctl-SHM_INFO-lockup-without-CONFIG_SHMEM.patch]
2.6.24-etch-security: released (2.6.24-6~etchnhalf.8etch1) [bugfix/all/shm-fix-shmctl-SHM_INFO-lockup-without-CONFIG_SHMEM.patch]
2.6.26-lenny-security: released (2.6.26-15lenny1) [bugfix/all/shm-fix-shmctl-SHM_INFO-lockup-without-CONFIG_SHMEM.patch]
2.6.15-dapper-security:
2.6.22-gutsy-security:
2.6.24-hardy-security:
2.6.27-intrepid-security: