On 6/25/20 11:55 PM, Kees Cook wrote:
> Similar to commit ce6fa91b9363 ("mm/slub.c: add a naive detection
> of double free or corruption"), add a very cheap double-free check
> for SLAB under CONFIG_SLAB_FREELIST_HARDENED. With this added, the
> "SLAB_FREE_DOUBLE" LKDTM test passes under SLAB:
>
Similar to commit ce6fa91b9363 ("mm/slub.c: add a naive detection
of double free or corruption"), add a very cheap double-free check
for SLAB under CONFIG_SLAB_FREELIST_HARDENED. With this added, the
"SLAB_FREE_DOUBLE" LKDTM test passes under SLAB:
lkdtm: Performing direct entry
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