CVE-2024-50201: drm/radeon: Fix encoder->possible_clones
First published: Fri Nov 08 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: drm/radeon: Fix encoder->possible_clones Include the encoder itself in its possible_clones bitmask. In the past nothing validated that drivers were populating possible_clones correctly, but that changed in commit 74d2aacbe840 ("drm: Validate encoder->possible_clones"). Looks like radeon never got the memo and is still not following the rules 100% correctly. This results in some warnings during driver initialization: Bogus possible_clones: [ENCODER:46:TV-46] possible_clones=0x4 (full encoder mask=0x7) WARNING: CPU: 0 PID: 170 at drivers/gpu/drm/drm_mode_config.c:615 drm_mode_config_validate+0x113/0x39c ... (cherry picked from commit 3b6e7d40649c0d75572039aff9d0911864c689db)
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=5.8<5.10.228 | |
| Linux Kernel | >=5.11<5.15.169 | |
| Linux Kernel | >=5.16<6.1.114 | |
| Linux Kernel | >=6.2<6.6.58 | |
| Linux Kernel | >=6.7<6.11.5 | |
| Linux Kernel | =6.12-rc1 | |
| Linux Kernel | =6.12-rc2 | |
| Linux Kernel | =6.12-rc3 |
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Reference Links
- https://git.kernel.org/stable/c/df75c78bfeff99f9b4815c3e79e2b1b1e34fe264
- https://git.kernel.org/stable/c/fda5dc80121b12871dc343ab37e0c3f0d138825d
- https://git.kernel.org/stable/c/c3cd27d85f0778f4ec07384d7516b33153759b8e
- https://git.kernel.org/stable/c/1a235af0216411a32ab4db54f7bd19020b46c86d
- https://git.kernel.org/stable/c/68801730ebb9393460b30cd3885e407f15da27a9
- https://git.kernel.org/stable/c/28127dba64d8ae1a0b737b973d6d029908599611
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-50201
- https://nvd.nist.gov/vuln/detail/CVE-2024-50201
- https://launchpad.net/bugs/cve/CVE-2024-50201
- https://security-tracker.debian.org/tracker/CVE-2024-50201
- https://ubuntu.com/security/CVE-2024-50201
Frequently Asked Questions
What is the severity of CVE-2024-50201?
CVE-2024-50201 is considered to be of moderate severity due to its impact on the Linux kernel's handling of encoder configurations.
How do I fix CVE-2024-50201?
To fix CVE-2024-50201, update your Linux kernel to a version that addresses this vulnerability, specifically above the patched version.
What versions of Linux kernel are affected by CVE-2024-50201?
CVE-2024-50201 affects Linux kernel versions between 5.8 and 6.12-rc3.
Is CVE-2024-50201 exploitable?
CVE-2024-50201 could potentially be exploited in scenarios where incorrect encoder configurations might lead to security issues.
What impact does CVE-2024-50201 have on system performance?
CVE-2024-50201 primarily impacts the correctness of device driver interactions rather than system performance.
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