Description
Integer overflow in the drm_mode_dirtyfb_ioctl function in drivers/gpu/drm/drm_crtc.c in the Direct Rendering Manager (DRM) subsystem in the Linux kernel before 3.1.5 allows local users to gain privileges or cause a denial of service (memory corruption) via a crafted ioctl call.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +15 | 2.6.32-220.23.1.el6 | RHSA-2012:0743 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6.1 EUS | perf +14 | 2.6.32-131.29.1.el6 | RHSA-2012:1042 |
| Red Hat MRG 2 | kernel-rt +10 | 3.0.18-rt34.53.el6rt | RHSA-2012:0333 |
Advisories 3
- RHSA-2012:0743 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2012:0333 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2012:1042 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- USN-1556-1 vendor-advisory
- RHSA-2012:0743 vendor-advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.5
- USN-1555-1 vendor-advisory
- [oss-security] 20120111 Re: CVE request - kernel: drm: integer overflow in drm_mode_dirtyfb_ioctl() mailing-list
- 51371 vdb-entry
- https://bugzilla.redhat.com/show_bug.cgi?id=772894
- https://github.com/torvalds/linux/commit/a5cd335165e31db9dbab636fd29895d41da55dd2
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a5cd335165e31db9dbab636fd29895d41da55dd2