Integer signedness error in the drm_modeset_ctl function in (1) drivers/gpu/drm/drm_irq.c…
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.
Summary
Integer signedness error in the drm_modeset_ctl function in (1) drivers/gpu/drm/drm_irq.c in the Direct Rendering Manager (DRM) subsystem in the Linux kernel before 2.6.38 and (2) sys/dev/pci/drm/drm_irq.c in the kernel in OpenBSD before 4.9 allows local users to trigger out-of-bounds write operations, and consequently cause a denial of service (system crash) or possibly have unspecified other impact, via a crafted num_crtcs (aka vb_num) structure member in an ioctl argument.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 2 advisories
- RHSA-2011:0498 Released 2011-05-10 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-71.29.1.el6, kernel-debug-2.6.32-71.29.1.el6, kernel-debug-devel-2.6.32-71.29.1.el6 +4
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-71.29.1.el6, kernel-debug-2.6.32-71.29.1.el6, kernel-debug-devel-2.6.32-71.29.1.el6 +4
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-71.29.1.el6, kernel-bootwrapper-2.6.32-71.29.1.el6, kernel-debug-2.6.32-71.29.1.el6 +7
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-71.29.1.el6, kernel-debug-2.6.32-71.29.1.el6, kernel-debug-devel-2.6.32-71.29.1.el6 +4
- RHSA-2011:0500 Released 2011-05-10 · Red Hat rating Importantkernel-rt security and bug fix update
- MRG Realtime for RHEL 5 Server kernel-rt-2.6.33.9-rt31.64.el5rt, kernel-rt-debug-2.6.33.9-rt31.64.el5rt, kernel-rt-debug-devel-2.6.33.9-rt31.64.el5rt +7
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| MRG Realtime for RHEL 5 Server | Fixed | RHSA-2011:0500 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2011:0498 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2011:0498 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2011:0498 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2011:0498 |
Timeline
- 2026-10-02 Threatist record created from CVE-2011-1013
- 2026-10-03 Alias added: GHSA-xcm2-p2fv-cfg9
References
Patch 2
Sources
- CVE-2011-1013 · CVE Program
- CVE-2011-1013 · NVD
- FIRST EPSS
- GHSA-xcm2-p2fv-cfg9 · GitHub Advisory Database · CC BY 4.0
- CVE-2011-1013 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences