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CVE-2026-53190 (GCVE-0-2026-53190)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:39 – Updated: 2026-06-25 08:39
VLAI
Title
drm/virtio: fix dma_fence refcount leak on error in virtio_gpu_dma_fence_wait()
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: eba57fb5498f2858768321e64570caea188455b8 , < 898bd0ccfed71651b881660c5d20ad73b5203174 (git)
Affected: eba57fb5498f2858768321e64570caea188455b8 , < 73524e9f96a278b521f257a78a845c49eb522bc1 (git)
Affected: eba57fb5498f2858768321e64570caea188455b8 , < 8348567a6afb24e2c9cafe8a321162d0eebe1411 (git)
Affected: eba57fb5498f2858768321e64570caea188455b8 , < c0fffc874c264292e769f26194a2a5e66ce31810 (git)
Affected: eba57fb5498f2858768321e64570caea188455b8 , < 3f26bb732cc136ab20176697c92f32c9c84cb125 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.6.143 , ≤ 6.6.* (semver)
Unaffected: 6.12.94 , ≤ 6.12.* (semver)
Unaffected: 6.18.36 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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      "source": "SUSE CSAF VEX",
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      "title": "SUSE CVE CVE-2026-53190",
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}



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