{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-46240",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.107Z",
        "datePublished": "2026-05-28T09:41:08.376Z",
        "dateUpdated": "2026-08-05T12:30:40.467Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-05T12:30:40.467Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: iris: Fix use-after-free in iris_release_internal_buffers()\n\nThe recent change in commit 1dabf00ee206 (\"media: iris: gen1: Destroy\ninternal buffers after FW releases\") introduced a regression where\nsession_release_buf() may free the buffer. The caller,\niris_release_internal_buffers(), continued to access `buffer` after the\ncall, leading to a potential use-after-free.\n\nFix this by setting BUF_ATTR_PENDING_RELEASE before calling\nsession_release_buf(), and reverting the flag if the call fails. This\nensures no dereference occurs after potential freeing."
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "baseScore": 7.8,
                        "baseSeverity": "HIGH"
                    },
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "AV:L - The vulnerable code is reached only via VIDIOC_STREAMON and related ioctls on the iris V4L2 device node (/dev/videoN); it requires local access to that device, not a network path.\nAC:L - This is a sequential use-after-free, not a race; the attacker drives a decode session and supplies a bitstream with a resolution change to reliably reach the release/free path on gen1 hardware.\nPR:L - Triggering the path needs an open handle to the iris video device (e.g. video-group access, or the codec/media context on Android) but no real root or capability check exists along the path.\nUI:N - The attacker performs all ioctls and supplies the input bitstream directly; no separate victim action is required.\nS:U - The corruption stays within the kernel's own memory and security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The use-after-free lets the attacker groom and control the contents of the freed struct iris_buffer slot, enabling kernel memory disclosure.\nI:H - The post-free read-modify-write into the freed slab object can corrupt an adjacent reallocated structure, giving a UAF write primitive exploitable for control-flow/data corruption.\nA:H - The use-after-free reliably leads to slab corruption and kernel oops/panic, a high availability impact."
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/media/platform/qcom/iris/iris_buffer.c"
                    ],
                    "versions": [
                        {
                            "version": "7cde76db8883ec8a3d1456068079ecadbfb15ca5",
                            "lessThan": "dd24998a4a4016fb9921916024399bd80f0d45c6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1dabf00ee206eceb0f08a1fe5d1ce635f9064338",
                            "lessThan": "18c64439f249859b6140f7bf8bcf95c8ed841f28",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1dabf00ee206eceb0f08a1fe5d1ce635f9064338",
                            "lessThan": "f27cfdcfc916bb59297825805f4c3499f89f9e76",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d4457f23ac0130240053a34be663f0fade3bb371",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.18.16",
                            "lessThan": "6.18.32",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.6",
                            "lessThan": "6.20",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/media/platform/qcom/iris/iris_buffer.c"
                    ],
                    "versions": [
                        {
                            "version": "7.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "7.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.32",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.9",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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": "6.18.16",
                                    "versionEndExcluding": "6.18.32"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "7.0",
                                    "versionEndExcluding": "7.0.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "7.0",
                                    "versionEndExcluding": "7.1"
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.19.6"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/dd24998a4a4016fb9921916024399bd80f0d45c6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/18c64439f249859b6140f7bf8bcf95c8ed841f28"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f27cfdcfc916bb59297825805f4c3499f89f9e76"
                }
            ],
            "title": "media: iris: Fix use-after-free in iris_release_internal_buffers()",
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}