{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-43222", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.994Z", "datePublished": "2026-05-06T11:28:22.291Z", "dateUpdated": "2026-08-05T12:26:41.823Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:26:41.823Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: verisilicon: AV1: Fix tile info buffer size\n\nEach tile info is composed of: row_sb, col_sb, start_pos\nand end_pos (4 bytes each). So the total required memory\nis AV1_MAX_TILES * 16 bytes.\nUse the correct #define to allocate the buffer and avoid\nwriting tile info in non-allocated memory." } ], "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 through local V4L2 mem2mem decoder device operations and media request/ioctl submission to the Rockchip Verisilicon AV1 decoder, not directly by packets in an in-kernel network protocol.\nAC:L - An attacker can reliably submit AV1 frame and tile group controls with enough tiles to drive the undersized tile info buffer write; no race or uncontrollable timing condition is required.\nPR:L - The driver open and decode path has no capability check, but exploitation requires local access to the decoder device node or an equivalent low-privileged local media client context.\nUI:N - A local attacker with access to the V4L2 decoder can trigger the overflow directly by issuing ioctls and queueing a decode request; no separate victim action is needed.\nS:U - The corruption occurs within the kernel driver and impacts the same kernel security authority; there is no VM, IOMMU, or cross-scope boundary involved.\nC:H - This is an out-of-bounds write from kernel context into DMA-coherent memory, and kernel memory corruption is reasonably exploitable for disclosure primitives in severe cases.\nI:H - The bug writes attacker-influenced tile metadata past an undersized allocation, so it is a kernel out-of-bounds write with potential for arbitrary memory corruption or code execution.\nA:H - Even without full exploitation, writing beyond the allocated coherent buffer can corrupt adjacent memory or allocator state and plausibly crash or hang the kernel." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c" ], "versions": [ { "version": "727a400686a2c0d25015c9e44916a59b72882f83", "lessThan": "a5b1ddbe31f49b4da78642157589970e9b60a231", "status": "affected", "versionType": "git" }, { "version": "727a400686a2c0d25015c9e44916a59b72882f83", "lessThan": "34f36f9c6114af781a5a4f7a7c99334c85b73fc7", "status": "affected", "versionType": "git" }, { "version": "727a400686a2c0d25015c9e44916a59b72882f83", "lessThan": "f122f2b3ce9dbde60bf7ab0b180fe4a01f9d9bc4", "status": "affected", "versionType": "git" }, { "version": "727a400686a2c0d25015c9e44916a59b72882f83", "lessThan": "74abfadd7ef5ac9f3a6111d550cc651d1457c641", "status": "affected", "versionType": "git" }, { "version": "727a400686a2c0d25015c9e44916a59b72882f83", "lessThan": "a505ca2db89ad92a8d8d27fa68ebafb12e04a679", "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/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c" ], "versions": [ { "version": "6.5", "status": "affected" }, { "version": "0", "lessThan": "6.5", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.128", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.16", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.19.6", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0", "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": "6.5", "versionEndExcluding": "6.6.128" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.12.75" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.18.16" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.19.6" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "7.0" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/a5b1ddbe31f49b4da78642157589970e9b60a231" }, { "url": "https://git.kernel.org/stable/c/34f36f9c6114af781a5a4f7a7c99334c85b73fc7" }, { "url": "https://git.kernel.org/stable/c/f122f2b3ce9dbde60bf7ab0b180fe4a01f9d9bc4" }, { "url": "https://git.kernel.org/stable/c/74abfadd7ef5ac9f3a6111d550cc651d1457c641" }, { "url": "https://git.kernel.org/stable/c/a505ca2db89ad92a8d8d27fa68ebafb12e04a679" } ], "title": "media: verisilicon: AV1: Fix tile info buffer size", "x_generator": { "engine": "bippy-1.2.0" } } } }