CVE-2026-46240

{"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"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19.6"}]}]}], "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()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/media/platform/qcom/iris/iris_buffer.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "dd24998a4a4016fb9921916024399bd80f0d45c6", "status": "affected", "version": "7cde76db8883ec8a3d1456068079ecadbfb15ca5", "versionType": "git"}, {"lessThan": "18c64439f249859b6140f7bf8bcf95c8ed841f28", "status": "affected", "version": "1dabf00ee206eceb0f08a1fe5d1ce635f9064338", "versionType": "git"}, {"lessThan": "f27cfdcfc916bb59297825805f4c3499f89f9e76", "status": "affected", "version": "1dabf00ee206eceb0f08a1fe5d1ce635f9064338", "versionType": "git"}, {"status": "affected", "version": "d4457f23ac0130240053a34be663f0fade3bb371", "versionType": "git"}, {"lessThan": "6.18.32", "status": "affected", "version": "6.18.16", "versionType": "semver"}, {"lessThan": "6.20", "status": "affected", "version": "6.19.6", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/media/platform/qcom/iris/iris_buffer.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.0"}, {"lessThan": "7.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.32", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BB16B5AB-8895-4F92-9725-88EE499104D5", "versionEndExcluding": "6.18.32", "versionStartIncluding": "6.18.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E23BCEE9-4A9B-4A21-9895-8615B92174E7", "versionEndExcluding": "7.0.9", "versionStartIncluding": "6.19.6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*", "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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."}], "id": "CVE-2026-46240", "lastModified": "2026-06-17T10:53:23.583", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-05-28T10:16:39.613", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/18c64439f249859b6140f7bf8bcf95c8ed841f28"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dd24998a4a4016fb9921916024399bd80f0d45c6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f27cfdcfc916bb59297825805f4c3499f89f9e76"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: media: iris: Fix use-after-free in iris_release_internal_buffers()", "id": "2482577", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482577"}, "csaw": false, "cwe": "CWE-825", "details": ["A flaw was found in the Linux kernel, specifically within the `media: iris` driver. This vulnerability, a use-after-free, occurs when a buffer is prematurely freed by `session_release_buf()` while `iris_release_internal_buffers()` continues to access it. This improper handling of memory can lead to system instability, crashes, or potentially allow an attacker to gain unauthorized access or execute arbitrary code."], "name": "CVE-2026-46240", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46240\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46240\nhttps://lore.kernel.org/linux-cve-announce/2026052841-CVE-2026-46240-7e99@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7cde76db8883ec8a3d1456068079ecadbfb15ca5,dd24998a4a4016fb9921916024399bd80f0d45c6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1dabf00ee206eceb0f08a1fe5d1ce635f9064338,18c64439f249859b6140f7bf8bcf95c8ed841f28)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1dabf00ee206eceb0f08a1fe5d1ce635f9064338,f27cfdcfc916bb59297825805f4c3499f89f9e76)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d4457f23ac0130240053a34be663f0fade3bb371,*]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.18.16,6.18.32)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.19.6,6.20)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "7.0"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.32,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.9,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1-rc3,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-28T13:00:21.747348+00:00", "updated": "2026-06-10T23:45:44.322305+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}