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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
eba57fb5498f2858768321e64570caea188455b8 affected < 898bd0ccfed71651b881660c5d20ad73b5203174
eba57fb5498f2858768321e64570caea188455b8 affected < 73524e9f96a278b521f257a78a845c49eb522bc1
eba57fb5498f2858768321e64570caea188455b8 affected < 8348567a6afb24e2c9cafe8a321162d0eebe1411
eba57fb5498f2858768321e64570caea188455b8 affected < c0fffc874c264292e769f26194a2a5e66ce31810
eba57fb5498f2858768321e64570caea188455b8 affected < 3f26bb732cc136ab20176697c92f32c9c84cb125
Linux Linux affected
Version Status Constraints
6.5 affected —
0 unaffected < 6.5
6.6.143 unaffected ≤ 6.6.*
6.12.94 unaffected ≤ 6.12.*
6.18.36 unaffected ≤ 6.18.*
7.0.13 unaffected ≤ 7.0.*
7.1 unaffected ≤ *

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References
Link Providers
https://git.kernel.org/stable/c/3f26bb732cc136ab20176697c92f32c9c84cb125 cve-icon
https://git.kernel.org/stable/c/73524e9f96a278b521f257a78a845c49eb522bc1 cve-icon
https://git.kernel.org/stable/c/8348567a6afb24e2c9cafe8a321162d0eebe1411 cve-icon
https://git.kernel.org/stable/c/898bd0ccfed71651b881660c5d20ad73b5203174 cve-icon
https://git.kernel.org/stable/c/c0fffc874c264292e769f26194a2a5e66ce31810 cve-icon
History

Thu, 25 Jun 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-414

Thu, 25 Jun 2026 09:15:00 +0000

Type Values Removed Values Added
Description 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.
Title drm/virtio: fix dma_fence refcount leak on error in virtio_gpu_dma_fence_wait()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-06-25T08:39:02.366Z

Reserved: 2026-06-09T07:44:35.390Z

Link: CVE-2026-53190

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-25T12:00:14Z

Weaknesses