Oracle is pleased to announce the general availability of Enterprise Linux Release 5 Update 1

[El-errata] Enterprise Linux Release 5 Update 1 for x86 (32 bit) and x86_64 (64 Bit) architectures
Mon Nov 26 16:31:29 PST 2007

   Bug Fixes added  by Oracle
      *  Add entropy module option to e1000 and bnx2  [ORA 6045759]
      * Fix msi issue with kexec/kdump  [ORA 6219364]
      * Fix alloc_pages_node() static `nid' race made kernel crash  [ORA6187457]
      * Fix bad unlock_page() in error case   [ORA 6263574]
      * Fix error-path crashes in dio  [ORA 6242289]

だそうで。