In the Linux kernel, the following vulnerability has been resolved: drm/virtio: fix dma_fence refcount leak on error in virtio_gpu_dma_fence_wait() dma_fence_unwrap_for_each() internally calls dma_fence_unwrap_first() which does cursor->chain = dma_fence_get(head), taking an extra reference. On normal loop completion, dma_fence_unwrap_next() releases this via dma_fence_chain_walk() -> dma_fence_put(). When virtio_gpu_do_fence_wait() fails and the function returns early from inside the loop, the cursor->chain reference is never released. This is the only caller in the entire kernel that does an early return inside dma_fence_unwrap_for_each. Add dma_fence_put(itr.chain) before the early return.

An update of the linux package has been released.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - drm/virtio: fix dma_fence refcount leak on error in virtio_gpu_dma_fence_wait()     dma_fence_unwrap_for_each() internally calls dma_fence_unwrap_first() which does cursor->chain =     dma_fence_get(head), taking an extra reference. On normal loop completion, dma_fence_unwrap_next()     releases this via dma_fence_chain_walk() -> dma_fence_put(). When virtio_gpu_do_fence_wait() fails and the     function returns early from inside the loop, the cursor->chain reference is never released. This is the     only caller in the entire kernel that does an early return inside dma_fence_unwrap_for_each. Add     dma_fence_put(itr.chain) before the early return. (CVE-2026-53190)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
333762	Photon OS 5.0: Linux PHSA-2026-5.0-92-0895	Nessus	PhotonOS Local Security Checks	high
329149	SUSE SLED15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:3166-1)	Nessus	SuSE Local Security Checks	medium
328493	Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-1968)	Nessus	Amazon Linux Local Security Checks	high
327383	Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1925)	Nessus	Amazon Linux Local Security Checks	high
323484	Linux Distros Unpatched Vulnerability : CVE-2026-53190	Nessus	Misc.	medium
322944	Photon OS 5.0: Linux PHSA-2026-5.0-0895	Nessus	PhotonOS Local Security Checks	high

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CVE-2026-53190

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