CVE-2026-53190: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: eba57fb5498f2858768321e64570caea188455b8 преди 898bd0ccfed71651b881660c5d20ad73b5203174; eba57fb5498f2858768321e64570caea188455b8 преди 73524e9f96a278b521f257a78a845c49eb522bc1; eba57fb5498f2858768321e64570caea188455b8 преди 8348567a6afb24e2c9cafe8a321162d0eebe1411; eba57fb5498f2858768321e64570caea188455b8 преди c0fffc874c264292e769f26194a2a5e66ce31810; eba57fb5498f2858768321e64570caea188455b8 преди 3f26bb732cc136ab20176697c92f32c9c84cb125
• Linux Linux: 6.5; преди 6.5; 6.6.143 до 6.6.*; 6.12.94 до 6.12.*; 6.18.36 до 6.18.*; 7.0.13 до 7.0.*; 7.1 до *

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-53190
• https://nvd.nist.gov/vuln/detail/CVE-2026-53190
• https://git.kernel.org/stable/c/898bd0ccfed71651b881660c5d20ad73b5203174
• https://git.kernel.org/stable/c/73524e9f96a278b521f257a78a845c49eb522bc1
• https://git.kernel.org/stable/c/8348567a6afb24e2c9cafe8a321162d0eebe1411
• https://git.kernel.org/stable/c/c0fffc874c264292e769f26194a2a5e66ce31810
• https://git.kernel.org/stable/c/3f26bb732cc136ab20176697c92f32c9c84cb125