Brocade Security Advisory
The do_anonymous_page function in mm/memory.c in the Linux kernel before 220.127.116.11, 2.6.32.x before 18.104.22.168, 2.6.34.x before 22.214.171.124, and 2.6.35.x before 126.96.36.199 does not properly separate the stack and the heap, which allows context-dependent attackers to execute arbitrary code by writing to the bottom page of a shared memory segment, as demonstrated by a memory-exhaustion attack against the X.Org X server.
Brocade is investigating its product lines to determine which products may be affected by this vulnerability and the impact on each affected product.
Products Confirmed Not Vulnerable
Brocade Fabric OS, Brocade NetIron OS, Brocade ServerIron ADX, Brocade SLX-OS, and Brocade Workflow Composer are confirmed not affected by this vulnerability.
There are no workarounds that address this vulnerability.
THIS DOCUMENT IS PROVIDED ON AN AS-IS BASIS SOLELY FOR INFORMATIONAL PURPOSES AND DOES NOT IMPLY ANY KIND OF GUARANTY OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. YOUR USE OF THE INFORMATION CONTAINED HEREIN IS AT YOUR OWN RISK. ALL INFORMATION PROVIDED HEREIN IS BASED ON BROCADE'S CURRENT KNOWLEDGE AND UNDERSTANDING OF THE VULNERABILITY AND IMPACT TO BROCADE HARDWARE AND SOFTWARE PRODUCTS. BROCADE RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.