What’s Vulnerable › Vulnerabilities

CVE-2026-68380: accel/amdxdna: Fix use-after-free of mm_struct in job scheduler

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-10 · updated 2026-08-17

Description

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix use-after-free of mm_struct in job scheduler amdxdna_cmd_submit() stores current->mm in job->mm without holding any reference. aie2_sched_job_run() later access job->mm from the DRM scheduler worker thread. With only a raw pointer and no structural reference, the mm_struct can be freed before the scheduler runs the job. Fix this by calling mmgrab() to hold a structural mm_count reference for the lifetime of the job, paired with mmdrop() in every cleanup path.

Affected products

• Linux kernel: 6.14 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/6875ee2bef48f5d9f045d81a8a4d68893f768a8a
• https://git.kernel.org/stable/c/e8fadbffc19a233d1eedebfb8df0f522d1388280
• https://git.kernel.org/stable/c/faebb7ba1ac65fa5810b640df02ce04e509fdc11

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