Brocade Security Advisory
The offset2lib patch as used by the Linux Kernel contains a vulnerability, if RLIMIT_STACK is set to RLIMIT_INFINITY and 1 Gigabyte of memory is allocated (the maximum under the 1/4 restriction) then the stack will be grown down to 0x80000000, and as the PIE binary is mapped above 0x80000000 the minimum distance between the end of the PIE binary's read-write segment and the start of the stack becomes small enough that the stack guard page can be jumped over by an attacker.
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 FastIron OS, Brocade NetIron OS, Brocade ServerIorn ADX, and Brocade Workflow Composer are confirmed not affected by this vulnerability.
There are no workarounds that address this vulnerability.
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