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nvd-json-data-feeds/CVE-2021/CVE-2021-470xx/CVE-2021-47056.json
cad-safe-bot 9d3386f547 Auto-Update: 2025-01-09T21:00:27.098894+00:00
2025-01-09 21:03:50 +00:00

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{
"id": "CVE-2021-47056",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-02-29T23:15:07.530",
"lastModified": "2025-01-09T19:45:48.107",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init\n\nADF_STATUS_PF_RUNNING is (only) used and checked by adf_vf2pf_shutdown()\nbefore calling adf_iov_putmsg()->mutex_lock(vf2pf_lock), however the\nvf2pf_lock is initialized in adf_dev_init(), which can fail and when it\nfail, the vf2pf_lock is either not initialized or destroyed, a subsequent\nuse of vf2pf_lock will cause issue.\nTo fix this issue, only set this flag if adf_dev_init() returns 0.\n\n[ 7.178404] BUG: KASAN: user-memory-access in __mutex_lock.isra.0+0x1ac/0x7c0\n[ 7.180345] Call Trace:\n[ 7.182576] mutex_lock+0xc9/0xd0\n[ 7.183257] adf_iov_putmsg+0x118/0x1a0 [intel_qat]\n[ 7.183541] adf_vf2pf_shutdown+0x4d/0x7b [intel_qat]\n[ 7.183834] adf_dev_shutdown+0x172/0x2b0 [intel_qat]\n[ 7.184127] adf_probe+0x5e9/0x600 [qat_dh895xccvf]"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: crypto: qat - ADF_STATUS_PF_RUNNING debe configurarse despu\u00e9s de adf_dev_init ADF_STATUS_PF_RUNNING es (solo) usado y verificado por adf_vf2pf_shutdown() antes de llamar a adf_iov_putmsg()->mutex_lock(vf2pf_lock), sin embargo, vf2pf_lock es inicializado en adf_dev_init(), que puede fallar y cuando falla, vf2pf_lock no se inicializa o se destruye, un uso posterior de vf2pf_lock causar\u00e1 problemas. Para solucionar este problema, establezca este indicador solo si adf_dev_init() devuelve 0. [7.178404] ERROR: KASAN: acceso a memoria de usuario en __mutex_lock.isra.0+0x1ac/0x7c0 [7.180345] Seguimiento de llamadas: [7.182576] mutex_lock+0xc9 /0xd0 [ 7.183257] adf_iov_putmsg+0x118/0x1a0 [intel_qat] [ 7.183541] adf_vf2pf_shutdown+0x4d/0x7b [intel_qat] [ 7.183834] adf_dev_shutdown+0x172/0x2b0 [intel_qat] [7.184127] adf_probe+0x5e9/0x600 [qat_dh895xccvf]"
}
],
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{
"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-908"
}
]
}
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