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mm, slab: Fix infinite loop at _slub_get_freelist() #437

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mm, slab: Fix infinite loop at _slub_get_freelist() #437

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2 changes: 2 additions & 0 deletions drgn/helpers/linux/slab.py
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Original file line number Diff line number Diff line change
Expand Up @@ -310,6 +310,8 @@ def _try_hardened_freelist_dereference(ptr_addr: int) -> int:
def _slub_get_freelist(freelist: Object, freelist_set: Set[int]) -> None:
ptr = freelist.value_()
while ptr:
if ptr in freelist_set:
break
freelist_set.add(ptr)
ptr = self._freelist_dereference(ptr + freelist_offset)

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