CVE-2011-2518

Severity: medium (CVSS 4.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-05-24 · updated 2026-06-16
Weakness: CWE-20

Description

The tomoyo_mount_acl function in security/tomoyo/mount.c in the Linux kernel before 2.6.39.2 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.

Affected products

Linux kernel: before 2.6.39.2 — fixed in 2.6.39.2

How to fix

Upgrade to a fixed version: Linux kernel 2.6.39.2. Check the vendor advisory for mitigations.

References

http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.2
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4e78c724d47e2342aa8fde61f6b8536f662f795f
http://marc.info/?l=bugtraq&m=139447903326211&w=2
http://www.openwall.com/lists/oss-security/2011/07/01/5
https://github.com/torvalds/linux/commit/4e78c724d47e2342aa8fde61f6b8536f662f795f
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.2
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4e78c724d47e2342aa8fde61f6b8536f662f795f
http://marc.info/?l=bugtraq&m=139447903326211&w=2
http://www.openwall.com/lists/oss-security/2011/07/01/5
https://github.com/torvalds/linux/commit/4e78c724d47e2342aa8fde61f6b8536f662f795f

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