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.
References
- ADV-2011-0691 vdb-entry
- ibm-aix-fibre-channel-dos(67292) vdb-entry
- IZ94675 vendor-advisory
- ADV-2011-0275 vdb-entry
- IZ94383 vendor-advisory
- IZ96761 vendor-advisory
- IZ94222 vendor-advisory
- IZ94593 vendor-advisory