CVE-2026-68380accel/amdxdna: Fix use-after-free of mm_struct in job scheduler
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from aac243092b707bb3018e951d470cc1a9bcbaba6c before 6875ee2bef48f5d9f045d81a8a4d68893f768a8a; from aac243092b707bb3018e951d470cc1a9bcbaba6c before e8fadbffc19a233d1eedebfb8df0f522d1388280; from aac243092b707bb3018e951d470cc1a9bcbaba6c before faebb7ba1ac65fa5810b640df02ce04e509fdc11 | CNA record |
References
- https://git.kernel.org/stable/c/6875ee2bef48f5d9f045d81a8a4d68893f768a8a
- https://git.kernel.org/stable/c/e8fadbffc19a233d1eedebfb8df0f522d1388280
- https://git.kernel.org/stable/c/faebb7ba1ac65fa5810b640df02ce04e509fdc11
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.