Host crash due to failure to correctly validate PV kernel execution state

ISSUE DESCRIPTION Cannot specify user mode execution without specifying user-mode pagetables. Failure to validate this allows a malicious or buggy 64 bit PV guest to crash the host. nb: predates vulnerability handling process and therefore no formal announcement...

kernel: ext4: make_indexed_dir() missing validation

The makeindexeddir function in fs/ext4/namei.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 does not validate a certain reclen field, which allows local users to cause a denial of service OOPS by attempting to mount a crafted ext4 filesystem...

CVE-2008-5396

Array index error in the 1 torisa.c and 2 dahdi/tor2.c drivers in Zaptel aka DAHDI 1.4.11 and earlier allows local users in the dialout group to overwrite an integer value in kernel memory by writing to /dev/zap/ctl, related to missing validation of the sync field associated with the ZTSPANCONFIG...