CVE-2026-97507 Linux CVE debrief

Who should care

Linux kernel developers and maintainers, Linux distribution maintainers, and users of Linux systems with the dm1105 driver should assess their exposure and apply the patch if necessary.

Why it matters

A vulnerability in the Linux kernel's media driver, dm1105, has been addressed. The issue involves a missing error check for DMA memory allocation, which could lead to a kernel oops or invalid hardware access if the allocation fails. Linux kernel developers and maintainers, Linux distribution maintainers, and users of Linux systems with the dm1105 driver should assess their exposure and apply the patch if necessary.

• Potential system crashes or instability due to kernel oops.
• Risk of invalid hardware access leading to data corruption or security issues.
• Need for verification of system configurations and inventory to determine potential exposure.
• Priority for applying kernel patch to prevent potential issues.

Technical summary

The Linux kernel's media driver, dm1105, had a vulnerability due to a missing error check for DMA memory allocation. This could lead to a kernel oops or invalid hardware access if the allocation fails. The issue has been addressed with a patch that checks the return value of dma_alloc_coherent and propagates -ENOMEM on failure. Linux kernel developers and maintainers should review and apply the patch. Users of Linux systems with the dm1105 driver should verify their system configurations and inventory to determine potential exposure.

Defensive priority

Medium

Recommended defensive actions

• Review and apply the kernel patch to ensure the error check is implemented.
• Verify system configurations and inventory to determine potential exposure.
• Monitor system logs for signs of abnormal behavior related to the dm1105 driver.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability. However, the scope of affected systems and versions is not explicitly stated, requiring verification from official sources. To verify potential exposure, defenders should check system configurations and inventory, review the supplied official advisory or CVE record, and monitor system logs for signs of abnormal behavior related to the dm1105 driver.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.