RHEL7: Outage in neigh_timer_handler or kmalloc-512 slab corruption
Issue
- System crashed in neigh_timer_handler() due to bad pointers in neighbour struct.
- System crashed due a bad value in a structure that is stored in the
kmalloc-512slab. kmalloc-512slab corruption described bykmem -s <addr>with:
kmem: kmalloc-512: slab: <kmemaddr> duplicate freelist object: <kmemaddr>
Environment
- Red Enterprise Linux 7
- Releases prior to 7.4
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