248 lines
12 KiB
JSON
248 lines
12 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-2026-64085",
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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": "2026-07-19T07:54:57.032Z",
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"datePublished": "2026-07-19T15:39:56.067Z",
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"dateUpdated": "2026-07-19T15:39:56.067Z"
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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": "2026-07-19T15:39:56.067Z"
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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\nhwmon: (pmbus/adm1266) bounce blackbox records through a protocol-sized buffer\n\nadm1266_pmbus_block_xfer() copies the device-supplied block payload\ninto the caller-provided buffer using the device-supplied length:\n\n\tmemcpy(data_r, &msgs[1].buf[1], msgs[1].buf[0]);\n\nThe helper does not know how large data_r is and trusts the device to\nreturn at most one record's worth of bytes. adm1266_nvmem_read_blackbox()\nviolates that contract: it advances read_buff inside data->dev_mem in\nADM1266_BLACKBOX_SIZE (64-byte) strides while the helper is willing to\nwrite up to ADM1266_PMBUS_BLOCK_MAX (255) bytes. A device that returns\nmore than 64 bytes on the trailing record (read_buff offset 1984 in\nthe 2048-byte dev_mem allocation) overflows dev_mem by up to 191 bytes\nbefore the post-call\n\n\tif (ret != ADM1266_BLACKBOX_SIZE)\n\t\treturn -EIO;\n\ncan reject the response.\n\nContain the fix in the caller without changing the helper signature:\nread each record into a 255-byte local bounce buffer that matches the\nhelper's maximum output, validate the returned length, and only then\ncopy exactly ADM1266_BLACKBOX_SIZE bytes into the dev_mem slot."
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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/hwmon/pmbus/adm1266.c"
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],
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"versions": [
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{
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"version": "407dc802a9c0809ca6a48de4b4c63305eb84ef56",
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"lessThan": "7896d87cbb05e097efc113243d4e38f9f8cea16c",
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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": "407dc802a9c0809ca6a48de4b4c63305eb84ef56",
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"lessThan": "9d5309500b4607b7198e19f0a3fa13eb864cd5fb",
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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": "407dc802a9c0809ca6a48de4b4c63305eb84ef56",
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"lessThan": "6098634cfa711f11a8d65368dc51ec8f7c8241ba",
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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": "407dc802a9c0809ca6a48de4b4c63305eb84ef56",
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"lessThan": "60c4b9fe1a3dd012014b1f561a6928a0b5db1126",
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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": "407dc802a9c0809ca6a48de4b4c63305eb84ef56",
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"lessThan": "83e039f0a43e0708515b0479cb7690fb93faaaa0",
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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": "407dc802a9c0809ca6a48de4b4c63305eb84ef56",
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"lessThan": "97a9cf2a8217ca1cdaf48cb9ab26e471632c7e7f",
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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": "407dc802a9c0809ca6a48de4b4c63305eb84ef56",
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"lessThan": "dd47b8c4a0a8ced442da3f008db28fbbd31feaf0",
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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": "407dc802a9c0809ca6a48de4b4c63305eb84ef56",
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"lessThan": "43cae21424ff8e33894a0f86c6b80b840c049fd7",
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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/hwmon/pmbus/adm1266.c"
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],
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"versions": [
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{
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"version": "5.10",
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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": "5.10",
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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": "5.10.258",
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"lessThanOrEqual": "5.10.*",
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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": "5.15.209",
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"lessThanOrEqual": "5.15.*",
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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": "6.1.175",
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"lessThanOrEqual": "6.1.*",
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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": "6.6.142",
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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": "6.12.92",
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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": "6.18.34",
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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": "7.0.11",
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"lessThanOrEqual": "7.0.*",
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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": "7.1",
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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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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.10",
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"versionEndExcluding": "5.10.258"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.10",
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"versionEndExcluding": "5.15.209"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.10",
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"versionEndExcluding": "6.1.175"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.10",
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"versionEndExcluding": "6.6.142"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.10",
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"versionEndExcluding": "6.12.92"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.10",
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"versionEndExcluding": "6.18.34"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.10",
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"versionEndExcluding": "7.0.11"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.10",
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"versionEndExcluding": "7.1"
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}
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]
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}
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]
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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/7896d87cbb05e097efc113243d4e38f9f8cea16c"
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},
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{
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"url": "https://git.kernel.org/stable/c/9d5309500b4607b7198e19f0a3fa13eb864cd5fb"
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},
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{
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"url": "https://git.kernel.org/stable/c/6098634cfa711f11a8d65368dc51ec8f7c8241ba"
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},
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{
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"url": "https://git.kernel.org/stable/c/60c4b9fe1a3dd012014b1f561a6928a0b5db1126"
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},
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{
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"url": "https://git.kernel.org/stable/c/83e039f0a43e0708515b0479cb7690fb93faaaa0"
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},
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{
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"url": "https://git.kernel.org/stable/c/97a9cf2a8217ca1cdaf48cb9ab26e471632c7e7f"
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},
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{
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"url": "https://git.kernel.org/stable/c/dd47b8c4a0a8ced442da3f008db28fbbd31feaf0"
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},
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{
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"url": "https://git.kernel.org/stable/c/43cae21424ff8e33894a0f86c6b80b840c049fd7"
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}
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],
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"title": "hwmon: (pmbus/adm1266) bounce blackbox records through a protocol-sized buffer",
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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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} |