{"id":"CVE-2026-53190","state":"PUBLISHED","title":"drm/virtio: fix dma_fence refcount leak on error in virtio_gpu_dma_fence_wait()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/virtio: fix dma_fence refcount leak on error in virtio_gpu_dma_fence_wait()\n\ndma_fence_unwrap_for_each() internally calls dma_fence_unwrap_first()\nwhich does cursor->chain = dma_fence_get(head), taking an extra\nreference. On normal loop completion, dma_fence_unwrap_next()\nreleases this via dma_fence_chain_walk() -> dma_fence_put().\n\nWhen virtio_gpu_do_fence_wait() fails and the function returns early\nfrom inside the loop, the cursor->chain reference is never released.\nThis is the only caller in the entire kernel that does an early return\ninside dma_fence_unwrap_for_each.\n\nAdd dma_fence_put(itr.chain) before the early return.","publishedAt":"2026-06-25T08:39:02.366Z","updatedAt":"2026-06-25T08:39:02.366Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"eba57fb5498f2858768321e64570caea188455b8","status":"affected","lessThan":"898bd0ccfed71651b881660c5d20ad73b5203174","versionType":"git"},{"version":"eba57fb5498f2858768321e64570caea188455b8","status":"affected","lessThan":"73524e9f96a278b521f257a78a845c49eb522bc1","versionType":"git"},{"version":"eba57fb5498f2858768321e64570caea188455b8","status":"affected","lessThan":"8348567a6afb24e2c9cafe8a321162d0eebe1411","versionType":"git"},{"version":"eba57fb5498f2858768321e64570caea188455b8","status":"affected","lessThan":"c0fffc874c264292e769f26194a2a5e66ce31810","versionType":"git"},{"version":"eba57fb5498f2858768321e64570caea188455b8","status":"affected","lessThan":"3f26bb732cc136ab20176697c92f32c9c84cb125","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/virtio/virtgpu_submit.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.5","versionType":"semver"},{"version":"6.6.143","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.94","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.36","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.13","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/virtio/virtgpu_submit.c"]}],"references":["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"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53190.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53190","state":"PUBLISHED","datePublished":"2026-06-25T08:39:02.366Z","dateUpdated":"2026-06-25T08:39:02.366Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-06-09T07:44:35.390Z"},"containers":{"cna":{"title":"drm/virtio: fix dma_fence refcount leak on error in virtio_gpu_dma_fence_wait()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/virtio: fix dma_fence refcount leak on error in virtio_gpu_dma_fence_wait()\n\ndma_fence_unwrap_for_each() internally calls dma_fence_unwrap_first()\nwhich does cursor->chain = dma_fence_get(head), taking an extra\nreference. On normal loop completion, dma_fence_unwrap_next()\nreleases this via dma_fence_chain_walk() -> dma_fence_put().\n\nWhen virtio_gpu_do_fence_wait() fails and the function returns early\nfrom inside the loop, the cursor->chain reference is never released.\nThis is the only caller in the entire kernel that does an early return\ninside dma_fence_unwrap_for_each.\n\nAdd dma_fence_put(itr.chain) before the early return."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"eba57fb5498f2858768321e64570caea188455b8","status":"affected","lessThan":"898bd0ccfed71651b881660c5d20ad73b5203174","versionType":"git"},{"version":"eba57fb5498f2858768321e64570caea188455b8","status":"affected","lessThan":"73524e9f96a278b521f257a78a845c49eb522bc1","versionType":"git"},{"version":"eba57fb5498f2858768321e64570caea188455b8","status":"affected","lessThan":"8348567a6afb24e2c9cafe8a321162d0eebe1411","versionType":"git"},{"version":"eba57fb5498f2858768321e64570caea188455b8","status":"affected","lessThan":"c0fffc874c264292e769f26194a2a5e66ce31810","versionType":"git"},{"version":"eba57fb5498f2858768321e64570caea188455b8","status":"affected","lessThan":"3f26bb732cc136ab20176697c92f32c9c84cb125","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/virtio/virtgpu_submit.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.5","versionType":"semver"},{"version":"6.6.143","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.94","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.36","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.13","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/virtio/virtgpu_submit.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/898bd0ccfed71651b881660c5d20ad73b5203174"},{"url":"https://git.kernel.org/stable/c/73524e9f96a278b521f257a78a845c49eb522bc1"},{"url":"https://git.kernel.org/stable/c/8348567a6afb24e2c9cafe8a321162d0eebe1411"},{"url":"https://git.kernel.org/stable/c/c0fffc874c264292e769f26194a2a5e66ce31810"},{"url":"https://git.kernel.org/stable/c/3f26bb732cc136ab20176697c92f32c9c84cb125"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-25T08:39:02.366Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.6.143"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.12.94"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.18.36"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"7.0.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}