CVE-2024-38390

Summary

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

drm/msm/a6xx: Avoid a nullptr dereference when speedbin setting fails

Calling a6xx_destroy() before adreno_gpu_init() leads to a null pointer dereference on:

msm_gpu_cleanup() : platform_set_drvdata(gpu->pdev, NULL);

as gpu->pdev is only assigned in:

a6xx_gpu_init() |_ adreno_gpu_init |_ msm_gpu_init()

Instead of relying on handwavy null checks down the cleanup chain, explicitly de-allocate the LLC data and free a6xx_gpu instead.

Patchwork: https://patchwork.freedesktop.org/patch/588919/

Affected Software

VendorProductVersion RangeStatus
LinuxLinux76efc2453d0e8e5d6692ef69981b183ad674edea < 247849eeb3fd88f8990ed73e33af70d5c10f9aecaffected
LinuxLinux76efc2453d0e8e5d6692ef69981b183ad674edea < a1955a6df91355fef72a3a254700acd3cc1fec0daffected
LinuxLinux76efc2453d0e8e5d6692ef69981b183ad674edea < 617e3d1680504a3f9d88e1582892c68be155498faffected
LinuxLinux76efc2453d0e8e5d6692ef69981b183ad674edea < 46d4efcccc688cbacdd70a238bedca510acaa8e4affected
LinuxLinux5fea4202b5faccfc6449381a299e8ce4b994d666affected
LinuxLinux6.0.10 < 6.1affected
LinuxLinux6.1affected
LinuxLinux0 < 6.1unaffected
LinuxLinux6.1.93 <= 6.1.*unaffected
LinuxLinux6.6.33 <= 6.6.*unaffected
LinuxLinux6.9.4 <= 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