CVE-2009-2846 Information

Description

The eisa_eeprom_read function in the parisc isa-eeprom component (drivers/parisc/eisa_eeprom.c) in the Linux kernel before 2.6.31-rc6 allows local users to access restricted memory via a negative ppos argument which bypasses a check that assumes that ppos is positive and causes an out-of-bounds read in the readb function.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=6b4dbcd86a9d464057fcc7abe4d0574093071fcc http://secunia.com/advisories/37105 http://www.mandriva.com/security/advisories?name=MDVSA-2010:198 http://www.openwall.com/lists/oss-security/2009/08/10/1 http://www.openwall.com/lists/oss-security/2009/08/18/6 http://www.ubuntu.com/usn/USN-852-1 https://exchange.xforce.ibmcloud.com/vulnerabilities/52906