CVE-2026-68380 is a vulnerability in Linux Kernel
Published on August 10, 2026
accel/amdxdna: Fix use-after-free of mm_struct in job scheduler
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.
Products Associated with CVE-2026-68380
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Affected Versions
Linux:- Version aac243092b707bb3018e951d470cc1a9bcbaba6c and below 6875ee2bef48f5d9f045d81a8a4d68893f768a8a is affected.
- Version aac243092b707bb3018e951d470cc1a9bcbaba6c and below e8fadbffc19a233d1eedebfb8df0f522d1388280 is affected.
- Version aac243092b707bb3018e951d470cc1a9bcbaba6c and below faebb7ba1ac65fa5810b640df02ce04e509fdc11 is affected.
- Version 6.14 is affected.
- Before 6.14 is unaffected.
- Version 6.18.42, <= 6.18.* is unaffected.
- Version 7.1.6, <= 7.1.* is unaffected.
- Version 7.2-rc4, <= * is unaffected.