cvelist/2022/48xxx/CVE-2022-48812.json
2024-11-04 13:03:02 +00:00

124 lines
6.8 KiB
JSON

{
"data_version": "4.0",
"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2022-48812",
"ASSIGNER": "cve@kernel.org",
"STATE": "PUBLIC"
},
"description": {
"description_data": [
{
"lang": "eng",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: lantiq_gswip: don't use devres for mdiobus\n\nAs explained in commits:\n74b6d7d13307 (\"net: dsa: realtek: register the MDIO bus under devres\")\n5135e96a3dd2 (\"net: dsa: don't allocate the slave_mii_bus using devres\")\n\nmdiobus_free() will panic when called from devm_mdiobus_free() <-\ndevres_release_all() <- __device_release_driver(), and that mdiobus was\nnot previously unregistered.\n\nThe GSWIP switch is a platform device, so the initial set of constraints\nthat I thought would cause this (I2C or SPI buses which call ->remove on\n->shutdown) do not apply. But there is one more which applies here.\n\nIf the DSA master itself is on a bus that calls ->remove from ->shutdown\n(like dpaa2-eth, which is on the fsl-mc bus), there is a device link\nbetween the switch and the DSA master, and device_links_unbind_consumers()\nwill unbind the GSWIP switch driver on shutdown.\n\nSo the same treatment must be applied to all DSA switch drivers, which\nis: either use devres for both the mdiobus allocation and registration,\nor don't use devres at all.\n\nThe gswip driver has the code structure in place for orderly mdiobus\nremoval, so just replace devm_mdiobus_alloc() with the non-devres\nvariant, and add manual free where necessary, to ensure that we don't\nlet devres free a still-registered bus."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"affects": {
"vendor": {
"vendor_data": [
{
"vendor_name": "Linux",
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "<",
"version_name": "ac3a68d56651",
"version_value": "e177d2e85ebc"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"versions": [
{
"version": "5.9",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.9",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.101",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.24",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.16.10",
"lessThanOrEqual": "5.16.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.17",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
],
"defaultStatus": "affected"
}
}
]
}
}
]
}
}
]
}
},
"references": {
"reference_data": [
{
"url": "https://git.kernel.org/stable/c/e177d2e85ebcd3008c4b2abc293f4118e04eedef",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/e177d2e85ebcd3008c4b2abc293f4118e04eedef"
},
{
"url": "https://git.kernel.org/stable/c/b5652bc50dde7b84e93dfb25479b64b817e377c1",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/b5652bc50dde7b84e93dfb25479b64b817e377c1"
},
{
"url": "https://git.kernel.org/stable/c/2443ba2fe396bdde187a2fdfa6a57375643ae93c",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/2443ba2fe396bdde187a2fdfa6a57375643ae93c"
},
{
"url": "https://git.kernel.org/stable/c/0d120dfb5d67edc5bcd1804e167dba2b30809afd",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/0d120dfb5d67edc5bcd1804e167dba2b30809afd"
}
]
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