The key_replace_session_keyring function in security/keys/process_keys.c in the Linux kernel before 2.6.39.1 does not initialize a certain structure member, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via a KEYCTL_SESSION_TO_PARENT argument to the keyctl function, a different vulnerability than CVE-2010-2960.
The product dereferences a pointer that it expects to be valid but is NULL.
| Link | Tags |
|---|---|
| http://alt.swiecki.net/linux_kernel/sys_open-kmem_cache_alloc-2.6.39-rc4.txt | broken link |
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f7285b5d631fd6096b11c6af0058ed3a2b30ef4e | |
| http://www.openwall.com/lists/oss-security/2011/06/03/2 | patch mailing list third party advisory |
| https://lkml.org/lkml/2011/5/24/502 | third party advisory mailing list |
| https://lkml.org/lkml/2011/5/23/199 | third party advisory mailing list |
| https://lkml.org/lkml/2011/5/25/265 | patch mailing list third party advisory |
| http://securityreason.com/securityalert/8371 | third party advisory patch |
| http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.1 | broken link |
| http://www.openwall.com/lists/oss-security/2011/06/06/2 | patch mailing list third party advisory |