The Fibre Channel driver for QLogic adapters in IBM AIX 6.1 and 7.1 does not properly handle DMA resource limitations, which allows local users to cause a denial of service (system hang) via vectors that generate a large amount of DMA I/O, related to a deadlock in timer processing across CPUs
Published Oct 5, 2011
2.1
LOWCVSS 2.0
EPSS 0.33%
Description
The Fibre Channel driver for QLogic adapters in IBM AIX 6.1 and 7.1 does not properly handle DMA resource limitations, which allows local users to cause a denial of service (system hang) via vectors that generate a large amount of DMA I/O, related to a deadlock in timer processing across CPUs.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.33% (0.00327) | 23.40th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.33% (0.00327) | 24.22th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.07% (0.00069) | 18.46th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.10% (0.01104) | 54.09th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.10% (0.01104) | 52.45th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.10% (0.01104) | 50.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.10% (0.01104) | 28.85th | v2 (v2022.01.01) |
References (8)
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ94222 vendor-advisoryx_refsource_AIXAPAR
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ94383 vendor-advisoryx_refsource_AIXAPAR
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ94593 vendor-advisoryx_refsource_AIXAPAR
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ94675 vendor-advisoryx_refsource_AIXAPAR
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ96761 vendor-advisoryx_refsource_AIXAPAR
- http://www.vupen.com/english/advisories/2011/0275 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2011/0691 vdb-entryx_refsource_VUPENVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67292 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://www-01.ibm.com/support/docview.wss?uid=isg1IZ94222 | vendor-advisoryx_refsource_AIXAPAR | |
| http://www-01.ibm.com/support/docview.wss?uid=isg1IZ94383 | vendor-advisoryx_refsource_AIXAPAR | |
| http://www-01.ibm.com/support/docview.wss?uid=isg1IZ94593 | vendor-advisoryx_refsource_AIXAPAR | |
| http://www-01.ibm.com/support/docview.wss?uid=isg1IZ94675 | vendor-advisoryx_refsource_AIXAPAR | |
| http://www-01.ibm.com/support/docview.wss?uid=isg1IZ96761 | vendor-advisoryx_refsource_AIXAPAR | |
| http://www.vupen.com/english/advisories/2011/0275 | vdb-entryx_refsource_VUPENVendor Advisory | |
| http://www.vupen.com/english/advisories/2011/0691 | vdb-entryx_refsource_VUPENVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/67292 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.