Kernel crash via null framebuffer object
Published Jul 29, 2024 · Updated May 11, 2026
NULL pointer dereference in the AMDGPU virtual display driver in Linux allows local users to crash the kernel through a crafted framebuffer state. The atomic-check path reads state->fb->obj[0] directly without verifying that the framebuffer contains a GEM object; the correction uses drm_gem_fb_get_obj() and rejects a null result. Low-privileged local access and use of the AMDGPU virtual display path are required; the reported consequence is a host crash, with no data disclosure or modification.
Summary
What happened
NULL pointer dereference in the AMDGPU virtual display driver in Linux allows local users to crash the kernel through a crafted framebuffer state. The atomic-check path reads state->fb->obj[0] directly without verifying that the framebuffer contains a GEM object; the correction uses drm_gem_fb_get_obj() and rejects a null result. Low-privileged local access and use of the AMDGPU virtual display path are required; the reported consequence is a host crash, with no data disclosure or modification.
The record
- CVE
- CVE-2024-41093
- Published
- Jul 29, 2024
- Updated
- May 11, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-476, T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 29, 2024CVE publishedPublication date reported by the CVE source.
- May 11, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=4.2
- Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <330c8c1453848c04d335bad81371a66710210800
- Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <6ce0544cabaa608018d5922ab404dc656a9d8447
- Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <7f35e01cb0ea4d295f5c067bb5c67dfcddaf05bc
- Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <bcfa48ff785bd121316592b131ff6531e3e696bb
- Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <dd9ec0ea4cdde0fc48116e63969fc83e81d7ef46
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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