Withdrawn by the publisher.

The Linux kernel before 2.6.31-rc7 does not properly prevent mmap operations that target page zero and other low memory addresses, which allows local users to gain privileges by exploiting NULL pointer dereference vulnerabilities, related to (1) the default configuration of the allow_unconfined_mmap_low boolean in SELinux on Red Hat Enterprise Linux (RHEL) 5, (2) an error that causes allow_unconfined_mmap_low to be ignored in the unconfined_t domain, (3) lack of a requirement for the CAP_SYS_RAWIO capability for these mmap operations, and (4) interaction between the mmap_min_addr protection mechanism and certain application programs.

The Linux kernel before 2.6.31-rc7 does not properly prevent mmap operations that target page zero and other low memory addresses, which allows local users to gain privileges by exploiting NULL pointer dereference vulnerabilities, related to (1) the default configuration of the allow_unconfined_mmap_low boolean in SELinux on Red Hat Enterprise Linux (RHEL) 5, (2) an error that causes allow_unconfined_mmap_low to be ignored in the unconfined_t domain, (3) lack of a requirement for the CAP_SYS_RAWIO capability for these mmap operations, and (4) interaction between the mmap_min_addr protection mechanism and certain application programs.

kernel: personality: fix PER_CLEAR_ON_SETID kernel: /proc/$pid/maps visible during initial setuid ELF loading kernel: SELinux and mmap_min_addr kernel: md: NULL pointer deref when accessing suspend_* sysfs attributes kernel: x86_64 32 bit process register leak kernel: numerous getname() infoleaks kernel: tc: uninitialised kernel memory leak kernel: fs: pipe.c null pointer dereference kernel: tcf_fill_node() infoleak due to typo in 9ef1d4c7 kernel: flood ping cause out-of-iommu error and panic when mtu larger than 1500 kernel: r128 IOCTL NULL pointer dereferences when CCE state is uninitialised kernel: AF_UNIX: Fix deadlock on connecting to shutdown socket