UBUNTU-CVE-2024-26667
In the Linux kernel, the following vulnerability has been resolved: drm/msm/dpu: check for valid hw_pp in dpu_encoder_helper_phys_cleanup The commit 8b45a26f2ba9 ("drm/msm/dpu: reserve cdm blocks for writeback in case of YUV output") introduced a smatch warning about another conditional block in dpu_encoder_helper_phys_cleanup() which had assumed hw_pp will always be valid which may not necessarily be true. Lets fix the other conditional block by making sure hw_pp is valid before dereferencing it. Patchwork: https://patchwork.freedesktop.org/patch/574878/
02 / AFFECTED SOFTWARE
Affected packages
12 explicit affected versions
29 explicit affected versions
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33 explicit affected versions
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23 explicit affected versions
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26 explicit affected versions
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44 explicit affected versions
4 explicit affected versions
4 explicit affected versions
16 explicit affected versions
9 explicit affected versions
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3 explicit affected versions
16 explicit affected versions
43 explicit affected versions
11 explicit affected versions
35 explicit affected versions
12 explicit affected versions
6 explicit affected versions
12 explicit affected versions
50 explicit affected versions
12 explicit affected versions
9 explicit affected versions
27 explicit affected versions
12 explicit affected versions
7 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: drm/msm/dpu: check for valid hw_pp in dpu_encoder_helper_phys_cleanup The commit 8b45a26f2ba9 ("drm/msm/dpu: reserve cdm blocks for writeback in case of YUV output") introduced a smatch warning about another conditional block in dpu_encoder_helper_phys_cleanup() which had assumed hw_pp will always be valid which may not necessarily be true. Lets fix the other conditional block by making sure hw_pp is valid before dereferencing it. Patchwork: https://patchwork.freedesktop.org/patch/574878/
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/7f3d03c48b1eb6bc45ab20ca98b8b11be25f9f52
- https://git.kernel.org/stable/c/79592a6e7bdc1d05460c95f891f5e5263a107af8
- https://git.kernel.org/stable/c/7f3d03c48b1eb6bc45ab20ca98b8b11be25f9f52
- https://git.kernel.org/stable/c/eb4f56f3ff5799ca754ae6d811803a63fe25a4a2
- https://git.kernel.org/stable/c/fb8bfc6ea3cd8c5ac3d35711d064e2f6646aec17
- https://ubuntu.com/security/CVE-2024-26667
- https://ubuntu.com/security/notices/USN-6895-1
- https://ubuntu.com/security/notices/USN-6895-2
- https://ubuntu.com/security/notices/USN-6895-3
- https://ubuntu.com/security/notices/USN-6895-4
- https://ubuntu.com/security/notices/USN-6900-1
- https://www.cve.org/CVERecord?id=CVE-2024-26667