CVE-2026-53190None▾ SunlitIn 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…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
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.
Linux >= eba57fb5498f2858768321e64570caea188455b8 < 898bd0ccfed71651b881660c5d20ad73b5203174Linux >= eba57fb5498f2858768321e64570caea188455b8 < 73524e9f96a278b521f257a78a845c49eb522bc1Linux >= eba57fb5498f2858768321e64570caea188455b8 < 8348567a6afb24e2c9cafe8a321162d0eebe1411Linux >= eba57fb5498f2858768321e64570caea188455b8 < c0fffc874c264292e769f26194a2a5e66ce31810Linux >= eba57fb5498f2858768321e64570caea188455b8 < 3f26bb732cc136ab20176697c92f32c9c84cb125Linux 6.5Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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