CVE-2024-36896
Status: AnalyzedCritical (9.1)—
Severity9.1Critical · CVSS 3.1
Exploitation probability0.92 %higher than 60% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found
In the Linux kernel, the following vulnerability has been resolved:
USB: core: Fix access violation during port device removal
Testing with KASAN and syzkaller revealed a bug in port.c:disable_store(): usb_hub_to_struct_hub() can return NULL if the hub that the port belongs to is concurrently removed, but the function does not check for this possibility before dereferencing the returned value.
It turns out that the first dereference is unnecessary, since hub->intfdev is the parent of the port device, so it can be changed easily. Adding a check for hub == NULL prevents further problems.
The same bug exists in the disable_show() routine, and it can be fixed the same way.
CVSS
- Base score
- 9.1
- Version
- 3.1
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days
- 0.92 %
- Percentile among all scored CVEs
- 60
- Score date
- 10/21/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (1)
CWEs
- CWE-476
References
Show 8 references
- https://git.kernel.org/stable/c/5f1d68ef5ddac27c6b997adccd1c339cef1e6848
- https://git.kernel.org/stable/c/6119ef6517ce501fc548154691abdaf1f954a277
- https://git.kernel.org/stable/c/63533549ff53d24daf47c443dbd43c308afc3434
- https://git.kernel.org/stable/c/a4b46d450c49f32e9d4247b421e58083fde304ce
- https://git.kernel.org/stable/c/5f1d68ef5ddac27c6b997adccd1c339cef1e6848
- https://git.kernel.org/stable/c/6119ef6517ce501fc548154691abdaf1f954a277
- https://git.kernel.org/stable/c/63533549ff53d24daf47c443dbd43c308afc3434
- https://git.kernel.org/stable/c/a4b46d450c49f32e9d4247b421e58083fde304ce
Raw JSON (NVD)
Show
{
"id": "CVE-2024-36896",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-36896",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-06-03T15:40:53.946750Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 9.1,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 5.2,
"exploitabilityScore": 3.9
}
]
},
"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": "f061f43d7418cb62b8d073e221ec75d3f5b89e17",
"lessThan": "5f1d68ef5ddac27c6b997adccd1c339cef1e6848",
"versionType": "git"
},
{
"status": "affected",
"version": "f061f43d7418cb62b8d073e221ec75d3f5b89e17",
"lessThan": "63533549ff53d24daf47c443dbd43c308afc3434",
"versionType": "git"
},
{
"status": "affected",
"version": "f061f43d7418cb62b8d073e221ec75d3f5b89e17",
"lessThan": "6119ef6517ce501fc548154691abdaf1f954a277",
"versionType": "git"
},
{
"status": "affected",
"version": "f061f43d7418cb62b8d073e221ec75d3f5b89e17",
"lessThan": "a4b46d450c49f32e9d4247b421e58083fde304ce",
"versionType": "git"
}
],
"programFiles": [
"drivers/usb/core/port.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.91",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.31",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.8.10",
"versionType": "semver",
"lessThanOrEqual": "6.8.*"
},
{
"status": "unaffected",
"version": "6.9",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/usb/core/port.c"
],
"defaultStatus": "affected"
}
]
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"affectedData": [
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "affected",
"version": "f061f43d7418",
"lessThan": "5f1d68ef5dda",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "affected",
"version": "f061f43d7418",
"lessThan": "63533549ff53",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "affected",
"version": "f061f43d7418",
"lessThan": "6119ef6517ce",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "affected",
"version": "f061f43d7418",
"lessThan": "a4b46d450c49",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "unaffected",
"version": "0",
"lessThan": "6.0",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "unaffected",
"version": "6.6.31",
"lessThan": "6.7",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "unaffected",
"version": "6.8.10",
"lessThan": "6.9",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "unaffected",
"version": "6.9"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:6.0:-:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "affected",
"version": "6.0"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "unaffected",
"version": "6.1.91",
"lessThan": "6.2",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
}
]
}
],
"published": "2024-05-30T16:15:13.023",
"references": [
{
"url": "https://git.kernel.org/stable/c/5f1d68ef5ddac27c6b997adccd1c339cef1e6848",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/6119ef6517ce501fc548154691abdaf1f954a277",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/63533549ff53d24daf47c443dbd43c308afc3434",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/a4b46d450c49f32e9d4247b421e58083fde304ce",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/5f1d68ef5ddac27c6b997adccd1c339cef1e6848",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/6119ef6517ce501fc548154691abdaf1f954a277",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/63533549ff53d24daf47c443dbd43c308afc3434",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/a4b46d450c49f32e9d4247b421e58083fde304ce",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"description": [
{
"lang": "en",
"value": "CWE-476"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: core: Fix access violation during port device removal\n\nTesting with KASAN and syzkaller revealed a bug in port.c:disable_store():\nusb_hub_to_struct_hub() can return NULL if the hub that the port belongs to\nis concurrently removed, but the function does not check for this\npossibility before dereferencing the returned value.\n\nIt turns out that the first dereference is unnecessary, since hub->intfdev\nis the parent of the port device, so it can be changed easily. Adding a\ncheck for hub == NULL prevents further problems.\n\nThe same bug exists in the disable_show() routine, and it can be fixed the\nsame way."
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvió la siguiente vulnerabilidad: USB: core: corrige la infracción de acceso durante la eliminación del dispositivo del puerto. Las pruebas con KASAN y syzkaller revelaron un error en port.c:disable_store(): usb_hub_to_struct_hub() puede devolver NULL si el hub que el puerto al que pertenece se elimina simultáneamente, pero la función no comprueba esta posibilidad antes de desreferenciar el valor devuelto. Resulta que la primera desreferencia es innecesaria, ya que hub->intfdev es el padre del dispositivo portuario, por lo que se puede cambiar fácilmente. Agregar una verificación para hub == NULL evita más problemas. El mismo error existe en la rutina enable_show() y se puede solucionar de la misma manera."
}
],
"lastModified": "2026-06-17T07:37:18.107",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "54C26F9A-8376-491B-B07E-65C07B72B8D9",
"versionEndExcluding": "6.1.91",
"versionStartIncluding": "6.0"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CDDB1F69-36AC-41C1-9192-E7CCEF5FFC00",
"versionEndExcluding": "6.6.31",
"versionStartIncluding": "6.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6A6B920C-8D8F-4130-86B4-AD334F4CF2E3",
"versionEndExcluding": "6.8.10",
"versionStartIncluding": "6.7"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "22BEDD49-2C6D-402D-9DBF-6646F6ECD10B"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DF73CB2A-DFFD-46FB-9BFE-AA394F27EA37"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "52048DDA-FC5A-4363-95A0-A6357B4D7F8C"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A06B2CCF-3F43-4FA9-8773-C83C3F5764B2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc5:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F850DCEC-E08B-4317-A33B-D2DCF39F601B"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc6:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "91326417-E981-482E-A5A3-28BC1327521B"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}