Description
The azx_position_ok function in hda_intel.c in Linux kernel 2.6.33-rc4 and earlier, when running on the AMD780V chip set, allows context-dependent attackers to cause a denial of service (crash) via unknown manipulations that trigger a divide-by-zero error.
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 5 | kernel +11 | 2.6.18-194.3.1.el5 | RHSA-2010:0398 |
| RHEL 4 | kernel +10 | 2.6.9-89.0.25.EL | RHSA-2010:0394 |
Advisories 2
- RHSA-2010:0394 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2010:0398 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- RHSA-2010:0394 vendor-advisory
- 38348 vdb-entry
- 39649 third-party-advisory
- http://support.avaya.com/css/P8/documents/100090459
- https://bugzilla.redhat.com/show_bug.cgi?id=567168
- 43315 third-party-advisory
- [linux-kernel] 20100205 PROBLEM: hda-intel divide by zero kernel crash in azx_position_ok() mailing-list
- [oss-security] 20100222 CVE request: kernel: ALSA: hda-intel: Avoid divide by zero crash mailing-list
- RHSA-2010:0398 vendor-advisory
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html
- oval:org.mitre.oval:def:10027 vdb-entry signature
- http://support.avaya.com/css/P8/documents/100088287
- 20110211 VMSA-2011-0003 Third party component updates for VMware vCenter Server, vCenter Update Manager, ESXi and ESX mailing-list
- http://nctritech.net/bugreport.txt