CVE-2011-2906

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-05-24 · updated 2026-06-16
Weakness: CWE-400

Description

Integer signedness error in the pmcraid_ioctl_passthrough function in drivers/scsi/pmcraid.c in the Linux kernel before 3.1 might allow local users to cause a denial of service (memory consumption or memory corruption) via a negative size value in an ioctl call. NOTE: this may be a vulnerability only in unusual environments that provide a privileged program for obtaining the required file descriptor.

Affected products

Linux kernel: before 3.1 — fixed in 3.1

How to fix

Upgrade to a fixed version: Linux kernel 3.1. Check the vendor advisory for mitigations.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b5b515445f4f5a905c5dd27e6e682868ccd6c09d
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1
http://www.openwall.com/lists/oss-security/2011/08/09/8
https://github.com/torvalds/linux/commit/b5b515445f4f5a905c5dd27e6e682868ccd6c09d
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b5b515445f4f5a905c5dd27e6e682868ccd6c09d
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1
http://www.openwall.com/lists/oss-security/2011/08/09/8
https://github.com/torvalds/linux/commit/b5b515445f4f5a905c5dd27e6e682868ccd6c09d

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