CVE-2023-53316
drm/msm/dp: Free resources after unregistering them
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Description
In the Linux kernel, the following vulnerability has been resolved: drm/msm/dp: Free resources after unregistering them The DP component's unbind operation walks through the submodules to unregister and clean things up. But if the unbind happens because the DP controller itself is being removed, all the memory for those submodules has just been freed. Change the order of these operations to avoid the many use-after-free that otherwise happens in this code path. Patchwork: https://patchwork.freedesktop.org/patch/542166/
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/3c3f3d35f5e05c468b048eb42a4f8c62c6655692
- https://git.kernel.org/stable/c/4e9f1a2367aea7d61f6781213e25313cd983b0d7
- https://git.kernel.org/stable/c/5c3278db06e332fdc14f3f297499fb88ded264d2
- https://git.kernel.org/stable/c/c67a55f7cc8d767d624235bf1bcd0947e56abe0f
- https://git.kernel.org/stable/c/ca47d0dc00968358c136a1847cfed550cedfd1b5
References (6)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
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