xattr.c in the ext2 and ext3 file system code for Linux kernel 2.6 does not properly compare the name_index fields when sharing xattr blocks, which could prevent default ACLs from being applied.

References

• https://nvd.nist.gov/vuln/detail/CVE-2005-2801
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10495
• http://acl.bestbits.at/pipermail/acl-devel/2005-February/001848.html
• http://lists.debian.org/debian-kernel/2005/08/msg00238.html
• http://secunia.com/advisories/17073
• http://secunia.com/advisories/17826
• http://secunia.com/advisories/18056
• http://secunia.com/advisories/18059
• http://secunia.com/advisories/19252
• http://www.debian.org/security/2005/dsa-921
• http://www.debian.org/security/2005/dsa-922
• http://www.mandriva.com/security/advisories?name=MDKSA-2005:219
• http://www.novell.com/linux/security/advisories/2005_18_kernel.html
• http://www.redhat.com/support/errata/RHSA-2005-514.html
• http://www.redhat.com/support/errata/RHSA-2006-0144.html
• http://www.securityfocus.com/archive/1/427980/100/0/threaded
• http://www.securityfocus.com/bid/14793