Kernel panic via invalid DSP IRAM writes
Published Sep 18, 2025 · Updated Sep 18, 2025
Improper memory writes in the i.MX DSP remoteproc driver in Linux kernel 5.16 allow local users to trigger a kernel panic. The driver loads ELF firmware segments into HiFi DSP IRAM with generic copy and zeroing operations that can issue writes narrower than the hardware-required 32 bits. Exploitation requires local low-privileged access and an i.MX system using the affected DSP path; the panic crashes the host kernel and interrupts service.
Summary
What happened
Improper memory writes in the i.MX DSP remoteproc driver in Linux kernel 5.16 allow local users to trigger a kernel panic. The driver loads ELF firmware segments into HiFi DSP IRAM with generic copy and zeroing operations that can issue writes narrower than the hardware-required 32 bits. Exploitation requires local low-privileged access and an i.MX system using the affected DSP path; the panic crashes the host kernel and interrupts service.
The record
- CVE
- CVE-2023-53434
- Published
- Sep 18, 2025
- Updated
- Sep 18, 2025
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 18, 2025CVE publishedPublication date reported by the CVE source.
- Sep 18, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <331cd77f3d02c35f98b48d1aa934c54c4e7102c8
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <408ec1ff0caa340c57eecf4cbd14ef0132036a50
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <44361033a8806aabd0f49b24e5a2fc07232cc5ff
What conditions does exploitation require?
What is affected?
Attacks
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Weakness, pattern, technique
Public exploit references
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