{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-74381",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-15T05:44:03.890Z",
        "datePublished": "2026-08-15T05:58:58.354Z",
        "dateUpdated": "2026-08-17T05:18:19.071Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T05:18:19.071Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpu: host1x: Allow entries in BO caches to be freed\n\nWhen a buffer object is pinned via host1x_bo_pin() with a cache, the\nresulting mapping is kept in the cache so it can be reused on subsequent\npins. Each mapping held a reference to the underlying host1x_bo (taken\nin tegra_bo_pin / gather_bo_pin), so as long as a mapping was cached,\nthe bo itself could not be freed.\n\nHowever, the only way to remove the cached mapping was through the free\npath of the buffer object. This meant that if a bo got cached, it could\nnever get freed again.\n\nResolve the circularity by holding a weak reference to the bo from the\ncache side. This is done by having the .pin callbacks not bump the bo's\nrefcount -- instead the common Host1x bo code does so, except for the\ncache reference.\n\nAlso move the remove-cache-mapping-on-free code into a common function\ninside Host1x code. This is only called from the TegraDRM GEM buffers\nsince those are the only ones that can be cached at the moment."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/tegra/gem.c",
                        "drivers/gpu/drm/tegra/submit.c",
                        "drivers/gpu/host1x/bus.c",
                        "include/linux/host1x.h"
                    ],
                    "versions": [
                        {
                            "version": "1f39b1dfa53c84b56d7ad37fed44afda7004959d",
                            "lessThan": "af755456299d44e4ed6af3b7c70a7f03ea37fdf1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1f39b1dfa53c84b56d7ad37fed44afda7004959d",
                            "lessThan": "71c017b3f83ff72638f2a1b1d6d4e7bc61d30231",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1f39b1dfa53c84b56d7ad37fed44afda7004959d",
                            "lessThan": "0e9dd7cfb9986b78cc81eca126ccfbf57f4c0602",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1f39b1dfa53c84b56d7ad37fed44afda7004959d",
                            "lessThan": "8c0d3cf0d5108c96317e0eca92b60dd368867cef",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1f39b1dfa53c84b56d7ad37fed44afda7004959d",
                            "lessThan": "df63c76f9c8d881ca7bce1aecfba512328d0527d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1f39b1dfa53c84b56d7ad37fed44afda7004959d",
                            "lessThan": "3cbf5e3c46e66d9b3b6b91099bb720c6cb1be3bc",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/tegra/gem.c",
                        "drivers/gpu/drm/tegra/submit.c",
                        "drivers/gpu/host1x/bus.c",
                        "include/linux/host1x.h"
                    ],
                    "versions": [
                        {
                            "version": "5.17",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.17",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.178",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.145",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.97",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.40",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.5",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.1.178"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.6.145"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.12.97"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.18.40"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "7.1.5"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/af755456299d44e4ed6af3b7c70a7f03ea37fdf1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/71c017b3f83ff72638f2a1b1d6d4e7bc61d30231"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0e9dd7cfb9986b78cc81eca126ccfbf57f4c0602"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8c0d3cf0d5108c96317e0eca92b60dd368867cef"
                },
                {
                    "url": "https://git.kernel.org/stable/c/df63c76f9c8d881ca7bce1aecfba512328d0527d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3cbf5e3c46e66d9b3b6b91099bb720c6cb1be3bc"
                }
            ],
            "title": "gpu: host1x: Allow entries in BO caches to be freed",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}