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vuln-cve/data/2026/31xxx/CVE-2026-31606.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-31606",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-03-09T15:48:24.122Z",
"datePublished": "2026-04-24T14:42:28.792Z",
"dateUpdated": "2026-10-30T12:24:27.746Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-10-30T12:24:27.746Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: f_hid: don't call cdev_init while cdev in use\n\nWhen calling unbind, then bind again, cdev_init reinitialized the cdev,\neven though there may still be references to it. That's the case when\nthe /dev/hidg* device is still opened. This obviously unsafe behavior\nlike oopes.\n\nThis fixes this by using cdev_alloc to put the cdev on the heap. That\nway, we can simply allocate a new one in hidg_bind."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/usb/gadget/function/f_hid.c"
],
"versions": [
{
"version": "cb382536052fcc7713988869b54a81137069e5a9",
"lessThan": "92f23ab86d9524bc51dae25ed916d0e69dce5992",
"status": "affected",
"versionType": "git"
},
{
"version": "cb382536052fcc7713988869b54a81137069e5a9",
"lessThan": "3aa77f5da0ecb00895411f4246d8a3e4db0343c2",
"status": "affected",
"versionType": "git"
},
{
"version": "cb382536052fcc7713988869b54a81137069e5a9",
"lessThan": "c6c0d13db5d0f8d465eabc14bd23d2b6a7247a43",
"status": "affected",
"versionType": "git"
},
{
"version": "cb382536052fcc7713988869b54a81137069e5a9",
"lessThan": "eb6ef6185f2054a341ec70d7e2165f5381744215",
"status": "affected",
"versionType": "git"
},
{
"version": "cb382536052fcc7713988869b54a81137069e5a9",
"lessThan": "5a229016ca3ac551294ec59770be9da94ec4bf63",
"status": "affected",
"versionType": "git"
},
{
"version": "cb382536052fcc7713988869b54a81137069e5a9",
"lessThan": "75ecc46828ec377dd5692c677168ef6d64fd7123",
"status": "affected",
"versionType": "git"
},
{
"version": "cb382536052fcc7713988869b54a81137069e5a9",
"lessThan": "81ebd43cc0d6d106ce7b6ccbf7b5e40ca7f5503d",
"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/usb/gadget/function/f_hid.c"
],
"versions": [
{
"version": "3.19",
"status": "affected"
},
{
"version": "0",
"lessThan": "3.19",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.191",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.160",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.83",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.24",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.19.14",
"lessThanOrEqual": "6.19.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.0.1",
"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": "3.19",
"versionEndExcluding": "6.1.191"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.19",
"versionEndExcluding": "6.6.160"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.19",
"versionEndExcluding": "6.12.83"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.19",
"versionEndExcluding": "6.18.24"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.19",
"versionEndExcluding": "6.19.14"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.19",
"versionEndExcluding": "7.0.1"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.19",
"versionEndExcluding": "7.1"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/92f23ab86d9524bc51dae25ed916d0e69dce5992"
},
{
"url": "https://git.kernel.org/stable/c/3aa77f5da0ecb00895411f4246d8a3e4db0343c2"
},
{
"url": "https://git.kernel.org/stable/c/c6c0d13db5d0f8d465eabc14bd23d2b6a7247a43"
},
{
"url": "https://git.kernel.org/stable/c/eb6ef6185f2054a341ec70d7e2165f5381744215"
},
{
"url": "https://git.kernel.org/stable/c/5a229016ca3ac551294ec59770be9da94ec4bf63"
},
{
"url": "https://git.kernel.org/stable/c/75ecc46828ec377dd5692c677168ef6d64fd7123"
},
{
"url": "https://git.kernel.org/stable/c/81ebd43cc0d6d106ce7b6ccbf7b5e40ca7f5503d"
}
],
"title": "usb: gadget: f_hid: don't call cdev_init while cdev in use",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}