CVE-2023-23005

Summary

In the Linux kernel before 6.2, mm/memory-tiers.c misinterprets the alloc_memory_type return value (expects it to be NULL in the error case, whereas it is actually an error pointer). NOTE: this is disputed by third parties because there are no realistic cases in which a user can cause the alloc_memory_type error case to be reached.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/torvalds/linux/commit/4a625ceee8a0ab0273534cb6b432ce6b331db5ee
• https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2
• https://bugzilla.suse.com/show_bug.cgi?id=1208844#c2

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/torvalds/linux/commit/4a625ceee8a0ab0273534cb6b432ce6b331db5ee
• https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2
• https://bugzilla.suse.com/show_bug.cgi?id=1208844#c2

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