CVE-2024-40924

Summary

In the Linux kernel, the following vulnerability has been resolved:

drm/i915/dpt: Make DPT object unshrinkable

In some scenarios, the DPT object gets shrunk but the actual framebuffer did not and thus its still there on the DPT's vm->bound_list. Then it tries to rewrite the PTEs via a stale CPU mapping. This causes panic.

[vsyrjala: Add TODO comment] (cherry picked from commit 51064d471c53dcc8eddd2333c3f1c1d9131ba36c)

Affected Software

VendorProductVersion RangeStatus
LinuxLinux0dc987b699ce4266450d407d6d79d41eab88c5d0 < 327280149066f0e5f2e50356b5823f76dabfe86eaffected
LinuxLinux0dc987b699ce4266450d407d6d79d41eab88c5d0 < 7a9883be3b98673333eec65c4a21cc18e60292ebaffected
LinuxLinux0dc987b699ce4266450d407d6d79d41eab88c5d0 < a2552020fb714ff357182c3c179abfac2289f84daffected
LinuxLinux0dc987b699ce4266450d407d6d79d41eab88c5d0 < 43e2b37e2ab660c3565d4cff27922bc70e79c3f1affected
LinuxLinux6.0affected
LinuxLinux0 < 6.0unaffected
LinuxLinux6.1.95 <= 6.1.*unaffected
LinuxLinux6.6.35 <= 6.6.*unaffected
LinuxLinux6.9.6 <= 6.9.*unaffected
LinuxLinux6.10 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

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

References