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CVE-2024-26656 is a use-after-free vulnerability in the Linux kernel AMDGPU DRM driver. The amdgpu_gem_userptr_ioctl path can accept an invalid user-space address and size combination that causes amdgpu_hmm_register() to fail during MMU interval notifier registration, including overflow validation. Despite that failure, subsequent GEM object cleanup invokes amdgpu_hmm_unregister(), attempting to remove or access an uninitialized or invalid notifier state. The fix prevents unregister cleanup from operating on HMM registration state when registration did not complete successfully.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.
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.