CVE-2026-46205

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Instead of removing the\ncode, return in the beginning of the function if cmd is non-zero in order\nto keep static checkers happy."}], "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 ioctl() on the local /dev/video* device node of the atomisp PCI ISP; there is no network or remote-peer path, and no physical interaction is required.\nAC:L - The attacker fully controls the ioctl arguments (embedded user pointers and width/height fields) and the device state (open, configure, stream, then issue the malicious ioctl), so the overflow can be triggered reliably with no conditions outside the attacker's control.\nPR:L - Private IOCTLs hit the vidioc_default path with flags=0 (no capability or priority check) and atomisp_open performs no capability check; an unprivileged local user holding the device-node ACL/video-group access (typical for the active desktop/camera session) can reach it without real root.\nUI:N - Exploitation is a self-contained sequence of ioctl calls by the attacker; no action by any other user is required.\nS:U - The corruption is confined to kernel memory within the same kernel security authority; there is no VM, IOMMU, or sandbox boundary crossing.\nC:H - The handlers provide kernel-heap out-of-bounds reads and the heap-overflow primitive can be leveraged to disclose adjacent kernel memory, enabling extensive information disclosure.\nI:H - atomisp_cp_dvs_6axis_config copies user-controlled-sized data into a smaller stream-sized heap allocation, giving a controlled kernel heap out-of-bounds write that can be leveraged for arbitrary write and code execution.\nA:H - The heap overflow corrupts kernel allocations and adjacent structures, readily causing a kernel oops/panic and full denial of service."}]}], "affected": [{"product": "Linux", "vendor": "Linux", 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These aren't quite as safe as one could\nassume of IOCTL handlers; disable them for now. Instead of removing the\ncode, return in the beginning of the function if cmd is non-zero in order\nto keep static checkers happy."}], "id": "CVE-2026-46205", "lastModified": "2026-06-17T10:53:16.403", "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": "2026-05-28T10:16:36.153", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2b7eb2c5dc72f0fc954ac4aa155f9e285e937f7c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/51b8dc5163d2ff2bf04019f8bf7e3bd0e75bb654"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/64e85679beafe082fc2e70a557ec356c7fd27548"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6850a439f8d23d4979624f1d6880d3118d473a28"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6f1ce75a75c65061e7a720c3d0ee5f8adab7a2d3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8774f8cb661f57ae43cc3bc0509d16ef1f406e45"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8c7a281a99224a5b9af99c4dcd98d68eea75926c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c7848b67ef10f581114b6a2f52b160fc20eb52c9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ceb1b5f910e58986ea544ff8c9c2f23ae9a52414"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: staging: media: atomisp: Disallow all private IOCTLs", "id": "2482544", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482544"}, "csaw": false, "cwe": "CWE-267", "details": ["A flaw was found in the Linux kernel's `atomisp` driver, located in the `staging: media` subsystem. This vulnerability involves the unsafe handling of private Input/Output Control (IOCTL) operations. While specific exploitation details are not provided, the presence of unsafe IOCTL handlers could potentially allow a local attacker to compromise the system, leading to consequences such as information disclosure, denial of service, or privilege escalation."], "name": "CVE-2026-46205", "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-2026-46205\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46205\nhttps://lore.kernel.org/linux-cve-announce/2026052833-CVE-2026-46205-24bf@gregkh/T"]}

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