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CVE-2024-26656 is a use-after-free vulnerability in the Linux kernel's AMDGPU DRM driver. A single amdgpu_gem_userptr_ioctl request containing an invalid address and size can trigger the issue on any ASIC supported by the affected driver. The malformed memory range causes amdgpu_hmm_register to fail during MMU interval-notifier insertion and overflow checking. Despite that failure, amdgpu_gem_object_free invokes amdgpu_hmm_unregister during cleanup, resulting in an invalid memory access.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
17 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A use-after-free vulnerability in the Linux kernel AMDGPU DRM driver. Invalid address and size parameters cause HMM registration to fail, but object cleanup still attempts HMM unregistration, accessing an invalid address. The advisory rates the vulnerability CVSS v3 5.5, with local access, low privileges, and high availability impact. It includes reproduction code but explicitly reports no known exploits. The prescribed fix is updating the linux package and related packages to version 6.1.133-1 or later.
Use-after-free vulnerability in the Linux kernel AMDGPU DRM driver.
Use-after-free vulnerability in the Linux kernel AMDGPU DRM driver.
A use-after-free vulnerability in the Linux kernel AMDGPU DRM driver.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.