CVE-2026-31606

{"id": "CVE-2026-31606", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "cb382536052fcc7713988869b54a81137069e5a9", "lessThan": "92f23ab86d9524bc51dae25ed916d0e69dce5992", "versionType": "git"}, {"status": "affected", "version": "cb382536052fcc7713988869b54a81137069e5a9", "lessThan": "3aa77f5da0ecb00895411f4246d8a3e4db0343c2", "versionType": "git"}, {"status": "affected", "version": "cb382536052fcc7713988869b54a81137069e5a9", "lessThan": "c6c0d13db5d0f8d465eabc14bd23d2b6a7247a43", "versionType": "git"}, {"status": "affected", "version": "cb382536052fcc7713988869b54a81137069e5a9", "lessThan": "eb6ef6185f2054a341ec70d7e2165f5381744215", "versionType": "git"}, {"status": "affected", "version": "cb382536052fcc7713988869b54a81137069e5a9", "lessThan": "5a229016ca3ac551294ec59770be9da94ec4bf63", "versionType": "git"}, {"status": "affected", "version": "cb382536052fcc7713988869b54a81137069e5a9", "lessThan": "75ecc46828ec377dd5692c677168ef6d64fd7123", "versionType": "git"}, {"status": "affected", "version": "cb382536052fcc7713988869b54a81137069e5a9", "lessThan": "81ebd43cc0d6d106ce7b6ccbf7b5e40ca7f5503d", "versionType": "git"}], "programFiles": ["drivers/usb/gadget/function/f_hid.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.19"}, {"status": "unaffected", "version": "0", "lessThan": "3.19", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.191", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.160", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.83", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.24", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.14", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0.1", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/usb/gadget/function/f_hid.c"], "defaultStatus": "affected"}]}], "published": "2026-04-24T15:16:39.830", "references": [{"url": "https://git.kernel.org/stable/c/3aa77f5da0ecb00895411f4246d8a3e4db0343c2", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5a229016ca3ac551294ec59770be9da94ec4bf63", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/75ecc46828ec377dd5692c677168ef6d64fd7123", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/81ebd43cc0d6d106ce7b6ccbf7b5e40ca7f5503d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/92f23ab86d9524bc51dae25ed916d0e69dce5992", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c6c0d13db5d0f8d465eabc14bd23d2b6a7247a43", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/eb6ef6185f2054a341ec70d7e2165f5381744215", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "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."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nusb: gadget: f_hid: no llamar a cdev_init mientras cdev est\u00e9 en uso\n\nAl llamar a unbind, luego a bind de nuevo, cdev_init reinicializaba el cdev, incluso si todav\u00eda puede haber referencias a \u00e9l. Ese es el caso cuando el dispositivo /dev/hidg todav\u00eda est\u00e1 abierto. Este comportamiento obviamente inseguro como oopes.\n\nEsto lo soluciona usando cdev_alloc para poner el cdev en el heap. De esa manera, podemos simplemente asignar uno nuevo en hidg_bind."}], "lastModified": "2026-11-11T23:10:00.263", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3CD4A015-C9CA-48DA-A0F8-0A35B8A34560", "versionEndExcluding": "6.12.83", "versionStartIncluding": "3.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8126B8B8-6D0B-4443-86C1-672AEE893555", "versionEndExcluding": "6.18.24", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D6A8A074-BBF4-4803-ABED-519A839435BB", "versionEndExcluding": "6.19.14", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9B5888AB-7403-4335-89E4-21CC0B48366A", "versionEndExcluding": "7.0.1", "versionStartIncluding": "7.0"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}