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vuln-cve/data/2026/64xxx/CVE-2026-64521.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-64521",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-07-19T15:36:31.794Z",
"datePublished": "2026-07-25T09:14:46.709Z",
"dateUpdated": "2026-07-25T09:14:46.709Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-07-25T09:14:46.709Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: meson: amlogic-a4: fix deadlock issue\n\nAccessing the pinconf-pins sysfs node may deadlock.\n\npinconf_pins_show() holds pctldev->mutex, and the platform driver\ncalls pinctrl_find_gpio_range_from_pin(), which tries to acquire\nthe same mutex again, leading to a deadlock.\n\nUse pinctrl_find_gpio_range_from_pin_nolock() to fix this issue."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/pinctrl/meson/pinctrl-amlogic-a4.c"
],
"versions": [
{
"version": "6e9be3abb78c2f6c97a51070004a5165702f0ed9",
"lessThan": "e917713f013423069782ff554935c7a5d4266783",
"status": "affected",
"versionType": "git"
},
{
"version": "6e9be3abb78c2f6c97a51070004a5165702f0ed9",
"lessThan": "744ac926c0e55267a10b49b5b72582afef4ad49f",
"status": "affected",
"versionType": "git"
},
{
"version": "6e9be3abb78c2f6c97a51070004a5165702f0ed9",
"lessThan": "e72ce029810390eb987a036fb2c8a5da9a23b685",
"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/pinctrl/meson/pinctrl-amlogic-a4.c"
],
"versions": [
{
"version": "6.15",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.15",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.34",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.0.11",
"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": "6.15",
"versionEndExcluding": "6.18.34"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.15",
"versionEndExcluding": "7.0.11"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.15",
"versionEndExcluding": "7.1"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/e917713f013423069782ff554935c7a5d4266783"
},
{
"url": "https://git.kernel.org/stable/c/744ac926c0e55267a10b49b5b72582afef4ad49f"
},
{
"url": "https://git.kernel.org/stable/c/e72ce029810390eb987a036fb2c8a5da9a23b685"
}
],
"title": "pinctrl: meson: amlogic-a4: fix deadlock issue",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}