CVE-2021-47659 (GCVE-0-2021-47659)
Vulnerability from cvelistv5
Published
2025-02-26 02:05
Modified
2025-05-16 07:23
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/plane: Move range check for format_count earlier
While the check for format_count > 64 in __drm_universal_plane_init()
shouldn't be hit (it's a WARN_ON), in its current position it will then
leak the plane->format_types array and fail to call
drm_mode_object_unregister() leaking the modeset identifier. Move it to
the start of the function to avoid allocating those resources in the
first place.
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| ▼ | Linux | Linux |
Version: e6fc3b68558e4c6d8d160b5daf2511b99afa8814 Version: e6fc3b68558e4c6d8d160b5daf2511b99afa8814 Version: e6fc3b68558e4c6d8d160b5daf2511b99afa8814 Version: e6fc3b68558e4c6d8d160b5daf2511b99afa8814 Version: e6fc3b68558e4c6d8d160b5daf2511b99afa8814 Version: e6fc3b68558e4c6d8d160b5daf2511b99afa8814 Version: e6fc3b68558e4c6d8d160b5daf2511b99afa8814 |
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"version": "5.15.46",
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"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/plane: Move range check for format_count earlier\n\nWhile the check for format_count \u003e 64 in __drm_universal_plane_init()\nshouldn\u0027t be hit (it\u0027s a WARN_ON), in its current position it will then\nleak the plane-\u003eformat_types array and fail to call\ndrm_mode_object_unregister() leaking the modeset identifier. Move it to\nthe start of the function to avoid allocating those resources in the\nfirst place."
}
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"url": "https://git.kernel.org/stable/c/4ab7e453a3ee88c274cf97bee9487ab92a66d313"
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"url": "https://git.kernel.org/stable/c/1e29d829ad51d1472dd035487953a6724b56fc33"
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"url": "https://git.kernel.org/stable/c/4b674dd69701c2e22e8e7770c1706a69f3b17269"
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