Kernel memory corruption via unsigned SDMA instance index
Published Jul 29, 2024 · Updated Aug 5, 2026
Out-of-bounds access in affected Linux kernel releases allows local users to crash the system via malformed AMDGPU SDMA trap interrupts. sdma_v4_0_process_trap_irq stores a negative sdma_v4_0_irq_id_to_seq result in an unsigned instance variable, so its error check fails and amdgpu_fence_process indexes far beyond the SDMA instance array. Reachability requires local DRM render-node access and an unmapped client identifier from malformed hardware or firmware interrupt data; the resulting kernel memory corruption can panic the host.
Summary
What happened
Out-of-bounds access in affected Linux kernel releases allows local users to crash the system via malformed AMDGPU SDMA trap interrupts. sdma_v4_0_process_trap_irq stores a negative sdma_v4_0_irq_id_to_seq result in an unsigned instance variable, so its error check fails and amdgpu_fence_process indexes far beyond the SDMA instance array. Reachability requires local DRM render-node access and an unmapped client identifier from malformed hardware or firmware interrupt data; the resulting kernel memory corruption can panic the host.
The record
- CVE
- CVE-2024-41022
- Published
- Jul 29, 2024
- Updated
- Aug 5, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 29, 2024CVE publishedPublication date reported by the CVE source.
- Aug 5, 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=011552f29f20842c9a7a21bffe1f6a2d6457ba46 <e8dfbf83a82bbfb9680921719fbe65e535af59ea
- Affected versionversion=0964c84b93db7fbf74f357c1e20957850e092db3 <d347c9a398bf7eab9408d207c0a50fb720f9de7d
- Affected versionversion=5.10.219 <5.10.223
- Affected versionversion=5.15.161 <5.15.164
- Affected versionversion=5.4.278 <5.4.281
- Affected versionversion=5594971e02764aa1c8210ffb838cb4e7897716e8 <3dd9734878a9042f0358301d19a2b006a0fc4d06
- Affected versionversion=5b0a3dc3e87821acb80e841b464d335aff242691 <4edb0a84e6b32e75dc9bd6dd085b2c2ff19ec287
- Affected versionversion=6.10
- Affected versionversion=6.1.94 <6.1.102
- Affected versionversion=6.6.34 <6.6.43
- Affected versionversion=6.9.5 <6.9.12
- Affected versionversion=8112fa72b7f139052843ff484130d6f97e9f052f <a5224e2123ce21102f346f518db80f004d5053a7
- Affected versionversion=8b2faf1a4f3b6c748c0da36cda865a226534d520 <298e2ce222e712ffafa47288c5b2fcf33d72fda3
- Affected versionversion=8b2faf1a4f3b6c748c0da36cda865a226534d520 <6769a23697f17f9bf9365ca8ed62fe37e361a05a
- Affected versionversion=ea906e9ac61e3152bef63597f2d9f4a812fc346a <544fa213f15d27f0370795845d55eeb3e00080d2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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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