UBUNTU-CVE-2024-40924
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)
02 / AFFECTED SOFTWARE
Affected packages
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03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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)
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/43e2b37e2ab660c3565d4cff27922bc70e79c3f1
- https://git.kernel.org/stable/c/327280149066f0e5f2e50356b5823f76dabfe86e
- https://git.kernel.org/stable/c/43e2b37e2ab660c3565d4cff27922bc70e79c3f1
- https://git.kernel.org/stable/c/7a9883be3b98673333eec65c4a21cc18e60292eb
- https://git.kernel.org/stable/c/a2552020fb714ff357182c3c179abfac2289f84d
- https://ubuntu.com/security/CVE-2024-40924
- https://ubuntu.com/security/notices/USN-6999-1
- https://ubuntu.com/security/notices/USN-6999-2
- https://ubuntu.com/security/notices/USN-7004-1
- https://ubuntu.com/security/notices/USN-7005-1
- https://ubuntu.com/security/notices/USN-7005-2
- https://ubuntu.com/security/notices/USN-7008-1
- https://ubuntu.com/security/notices/USN-7029-1
- https://www.cve.org/CVERecord?id=CVE-2024-40924