UBUNTU-CVE-2026-93192: High severity ubuntu/linux-hwe-edge vulnerability
In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Clear queue->activejob when v3dfencecreate() fails The runjob() callbacks for BIN, RENDER, TFU and CSD assign the incoming job to queue->activejob before calling v3dfencecreate(). If v3dfencecreate() fails, the callback returns NULL without clearing activejob, leaving a dangling pointer. Create a failure path in all runjob() callbacks that clears the active job before returning NULL. The BIN path takes queue->queuelock around the clear as it races against v3doverflowmemwork(); RENDER, TFU and CSD paths have no concurrent reader, so the clear is lock-free.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
ubuntu/linux-hwe-7.0to a version that resolves this vulnerability.Fixed in 7.0.0-42.42~24.04.1 - Upgrade
Upgrade
ubuntu/linux-riscv-7.0to a version that resolves this vulnerability.Fixed in 7.0.0-42.42.1~24.04.1 - Upgrade
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ubuntu/linuxto a version that resolves this vulnerability.Fixed in 7.0.0-42.42 - Upgrade
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ubuntu/linux-awsto a version that resolves this vulnerability.Fixed in 7.0.0-1016.17 - Upgrade
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ubuntu/linux-gcpto a version that resolves this vulnerability.Fixed in 7.0.0-1016.18 - Upgrade
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ubuntu/linux-ibmto a version that resolves this vulnerability.Fixed in 7.0.0-1017.17 - Upgrade
Upgrade
ubuntu/linux-oem-7.0to a version that resolves this vulnerability.Fixed in 7.0.0-1017.17 - Upgrade
Upgrade
ubuntu/linux-oracleto a version that resolves this vulnerability.Fixed in 7.0.0-1015.16 - Upgrade
Upgrade
ubuntu/linux-riscvto a version that resolves this vulnerability.Fixed in 7.0.0-42.42.1 - Compensating control
Update the BIN, RENDER, TFU, and CSD run_job() callbacks so that if v3d_fence_create() fails, they clear queue->active_job before returning NULL. In the BIN path, perform the clear while holding queue->queue_lock; in the RENDER, TFU, and CSD paths, clear it without a lock.