CVE-2026-89976accel/ethosu: fix job completion fence cleanup
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In the Linux kernel, the following vulnerability has been resolved: accel/ethosu: fix job completion fence cleanup ethosu_ioctl_submit_job() allocates done_fence before validating buffer handles. Errors after allocation call ethosu_job_err_cleanup(), which frees the job but leaks the uninitialized fence. A scheduler dependency error also lets ethosu_job_run() return before dma_fence_init(). Normal cleanup then passes a zeroed refcount to dma_fence_put(). Release done_fence in the common cleanup path and use dma_fence_was_initialized() to distinguish initialized fences from raw allocations. [robh: also fix goto]
- CVSS
- Not yet scored
- 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
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b before b3e0f79af1f27339d8d2527c02cc3e8397c2f69f; 5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b builds before 2d2a3adc91950f9a18829dadc7317fb5180a15c5 | CNA record |
References
- https://git.kernel.org/stable/c/b3e0f79af1f27339d8d2527c02cc3e8397c2f69f
- https://git.kernel.org/stable/c/2d2a3adc91950f9a18829dadc7317fb5180a15c5
The CVE record on cve.org NVD's entry
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