CVE-2024-49901

Summary

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

drm/msm/adreno: Assign msm_gpu->pdev earlier to avoid nullptrs

There are some cases, such as the one uncovered by Commit 46d4efcccc68 ("drm/msm/a6xx: Avoid a nullptr dereference when speedbin setting fails") where

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

is called on gpu->pdev == NULL, as the GPU device has not been fully initialized yet.

Turns out that there's more than just the aforementioned path that causes this to happen (e.g. the case when there's speedbin data in the catalog, but opp-supported-hw is missing in DT).

Assigning msm_gpu->pdev earlier seems like the least painful solution to this, therefore do so.

Patchwork: https://patchwork.freedesktop.org/patch/602742/

Affected Software

VendorProductVersion RangeStatus
LinuxLinux0cf6c71d70d8aa39b8fd0e39c9009602a0e0d300 < 9288a9676c529ad9c856096db68fad812499bc4aaffected
LinuxLinux0cf6c71d70d8aa39b8fd0e39c9009602a0e0d300 < 9773737375b20070ea935203fd66cb9fa17c5acbaffected
LinuxLinux0cf6c71d70d8aa39b8fd0e39c9009602a0e0d300 < e8ac2060597a5768e4699bb61d604b4c09927b85affected
LinuxLinux0cf6c71d70d8aa39b8fd0e39c9009602a0e0d300 < 16007768551d5bfe53426645401435ca8d2ef54faffected
LinuxLinux3.12affected
LinuxLinux0 < 3.12unaffected
LinuxLinux6.6.55 <= 6.6.*unaffected
LinuxLinux6.10.14 <= 6.10.*unaffected
LinuxLinux6.11.3 <= 6.11.*unaffected
LinuxLinux6.12 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References