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CVE-2008-2137 - Kingless Hyena

Description

The (1) sparc_mmap_check function in arch/sparc/kernel/sys_sparc.c and the (2) sparc64_mmap_check function in arch/sparc64/kernel/sys_sparc.c in the Linux kernel 2.4 before 2.4.36.5 and 2.6 before 2.6.25.3 omit some virtual-address range (aka span) checks when the mmap MAP_FIXED bit is not set which allows local users to cause a denial of service (panic) via unspecified mmap calls.

Reference

http://kerneltrap.org/mailarchive/git-commits-head/2008/5/8/1760604 http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.3 http://www.debian.org/security/2008/dsa-1588 http://www.securityfocus.com/bid/29397 http://secunia.com/advisories/30368 http://secunia.com/advisories/31107 http://www.ubuntu.com/usn/usn-625-1 http://secunia.com/advisories/30499 http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.36.5 http://www.vupen.com/english/advisories/2008/1716/references http://www.securitytracker.com/id?1020119 https://exchange.xforce.ibmcloud.com/vulnerabilities/42681