gsd-2022-48636
Vulnerability from gsd
Modified
2024-02-26 06:00
Details
In the Linux kernel, the following vulnerability has been resolved:
s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup
Fix Oops in dasd_alias_get_start_dev() function caused by the pavgroup
pointer being NULL.
The pavgroup pointer is checked on the entrance of the function but
without the lcu->lock being held. Therefore there is a race window
between dasd_alias_get_start_dev() and _lcu_update() which sets
pavgroup to NULL with the lcu->lock held.
Fix by checking the pavgroup pointer with lcu->lock held.
Aliases
{
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2022-48636"
],
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup\n\nFix Oops in dasd_alias_get_start_dev() function caused by the pavgroup\npointer being NULL.\n\nThe pavgroup pointer is checked on the entrance of the function but\nwithout the lcu-\u003elock being held. Therefore there is a race window\nbetween dasd_alias_get_start_dev() and _lcu_update() which sets\npavgroup to NULL with the lcu-\u003elock held.\n\nFix by checking the pavgroup pointer with lcu-\u003elock held.",
"id": "GSD-2022-48636",
"modified": "2024-02-26T06:00:31.249584Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "cve@kernel.org",
"ID": "CVE-2022-48636",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "8e09f21574ea",
"version_value": "d86b4267834e"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"defaultStatus": "affected",
"versions": [
{
"status": "affected",
"version": "2.6.25"
},
{
"lessThan": "2.6.25",
"status": "unaffected",
"version": "0",
"versionType": "custom"
},
{
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"version": "4.9.330",
"versionType": "custom"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.295",
"versionType": "custom"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.260",
"versionType": "custom"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.215",
"versionType": "custom"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.146",
"versionType": "custom"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.71",
"versionType": "custom"
},
{
"lessThanOrEqual": "5.19.*",
"status": "unaffected",
"version": "5.19.12",
"versionType": "custom"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.0",
"versionType": "original_commit_for_fix"
}
]
}
}
]
}
}
]
},
"vendor_name": "Linux"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup\n\nFix Oops in dasd_alias_get_start_dev() function caused by the pavgroup\npointer being NULL.\n\nThe pavgroup pointer is checked on the entrance of the function but\nwithout the lcu-\u003elock being held. Therefore there is a race window\nbetween dasd_alias_get_start_dev() and _lcu_update() which sets\npavgroup to NULL with the lcu-\u003elock held.\n\nFix by checking the pavgroup pointer with lcu-\u003elock held."
}
]
},
"generator": {
"engine": "bippy-d175d3acf727"
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://git.kernel.org/stable/c/d86b4267834e6d4af62e3073e48166e349ab1b70",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/d86b4267834e6d4af62e3073e48166e349ab1b70"
},
{
"name": "https://git.kernel.org/stable/c/49f401a98b318761ca2e15d4c7869a20043fbed4",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/49f401a98b318761ca2e15d4c7869a20043fbed4"
},
{
"name": "https://git.kernel.org/stable/c/aaba5ff2742043705bc4c02fd0b2b246e2e16da1",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/aaba5ff2742043705bc4c02fd0b2b246e2e16da1"
},
{
"name": "https://git.kernel.org/stable/c/2e473351400e3dd66f0b71eddcef82ee45a584c1",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/2e473351400e3dd66f0b71eddcef82ee45a584c1"
},
{
"name": "https://git.kernel.org/stable/c/f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b"
},
{
"name": "https://git.kernel.org/stable/c/d3a67c21b18f33c79382084af556557c442f12a6",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/d3a67c21b18f33c79382084af556557c442f12a6"
},
{
"name": "https://git.kernel.org/stable/c/650a2e79d176db753654d3dde88e53a2033036ac",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/650a2e79d176db753654d3dde88e53a2033036ac"
},
{
"name": "https://git.kernel.org/stable/c/db7ba07108a48c0f95b74fabbfd5d63e924f992d",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/db7ba07108a48c0f95b74fabbfd5d63e924f992d"
}
]
}
},
"nvd.nist.gov": {
"cve": {
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup\n\nFix Oops in dasd_alias_get_start_dev() function caused by the pavgroup\npointer being NULL.\n\nThe pavgroup pointer is checked on the entrance of the function but\nwithout the lcu-\u003elock being held. Therefore there is a race window\nbetween dasd_alias_get_start_dev() and _lcu_update() which sets\npavgroup to NULL with the lcu-\u003elock held.\n\nFix by checking the pavgroup pointer with lcu-\u003elock held."
}
],
"id": "CVE-2022-48636",
"lastModified": "2024-04-28T13:15:06.710",
"metrics": {},
"published": "2024-04-28T13:15:06.710",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/2e473351400e3dd66f0b71eddcef82ee45a584c1"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/49f401a98b318761ca2e15d4c7869a20043fbed4"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/650a2e79d176db753654d3dde88e53a2033036ac"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/aaba5ff2742043705bc4c02fd0b2b246e2e16da1"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/d3a67c21b18f33c79382084af556557c442f12a6"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/d86b4267834e6d4af62e3073e48166e349ab1b70"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/db7ba07108a48c0f95b74fabbfd5d63e924f992d"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
}
}
}
Loading...