201 lines
10 KiB
JSON
201 lines
10 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-43222",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-05-01T14:12:55.994Z",
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"datePublished": "2026-05-06T11:28:22.291Z",
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"dateUpdated": "2026-08-05T12:26:41.823Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:26:41.823Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"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."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"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."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c"
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],
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"versions": [
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{
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"version": "727a400686a2c0d25015c9e44916a59b72882f83",
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"lessThan": "a5b1ddbe31f49b4da78642157589970e9b60a231",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "727a400686a2c0d25015c9e44916a59b72882f83",
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"lessThan": "34f36f9c6114af781a5a4f7a7c99334c85b73fc7",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "727a400686a2c0d25015c9e44916a59b72882f83",
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"lessThan": "f122f2b3ce9dbde60bf7ab0b180fe4a01f9d9bc4",
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"status": "affected",
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"versionType": "git"
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{
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c"
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],
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"versions": [
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{
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"version": "6.5",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.5",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.128",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.75",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.16",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.19.6",
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"lessThanOrEqual": "6.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.0",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.5",
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"versionEndExcluding": "6.6.128"
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]
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/a5b1ddbe31f49b4da78642157589970e9b60a231"
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},
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{
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"url": "https://git.kernel.org/stable/c/34f36f9c6114af781a5a4f7a7c99334c85b73fc7"
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},
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{
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"url": "https://git.kernel.org/stable/c/f122f2b3ce9dbde60bf7ab0b180fe4a01f9d9bc4"
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},
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{
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"url": "https://git.kernel.org/stable/c/74abfadd7ef5ac9f3a6111d550cc651d1457c641"
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},
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{
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"url": "https://git.kernel.org/stable/c/a505ca2db89ad92a8d8d27fa68ebafb12e04a679"
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}
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],
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"title": "media: verisilicon: AV1: Fix tile info buffer size",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |