RHEL 6.10: sk_buff leak in IP fragmentation

Solution Verified - Updated -

Issue

  • After upgrade RHEL from 6.9 to 6.10, slab increases continuously in size-2048.
  • When upgrading to 2.6.32-754.6.3.el6.x86_64 skbuff_head_cache and possibly other slab objects used for sk_buff->data leak.

Environment

  • Only Red Hat Enterprise Linux 6.10 is affected.
  • kernel-2.6.32-754.6.3.el6.x86_64
  • IP fragmentation

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