The tomoyo_mount_acl function in security/tomoyo/mount.c in the Linux kernel before 220.127.116.11 calls the kern_path function with arguments taken directly from a mount system call, which allows local users to cause a denial of service (OOPS) or possibly have unspecified other impact via a NULL value for the device name.
CVSS Severity (version 2.0):
Impact Subscore: 6.9
Exploitability Subscore: 3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service
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[oss-security] 20110701 Re: CVE request: kernel: tomoyo: oops in tomoyo_mount_acl()