Integer overflow in the ib_uverbs_poll_cq function in drivers/infiniband/core/uverbs_cmd.c in the Linux kernel before 2.6.37 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact via a large value of a certain structure member.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| http://www.securityfocus.com/bid/46073 | vdb entry third party advisory |
| http://rhn.redhat.com/errata/RHSA-2011-0927.html | third party advisory vendor advisory |
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7182afea8d1afd432a17c18162cc3fd441d0da93 | |
| http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37 | broken link |
| https://bugzilla.redhat.com/show_bug.cgi?id=667916 | issue tracking third party advisory patch |