GSD-2023-52619
Vulnerability from gsd - Updated: 2024-03-07 06:01Details
In the Linux kernel, the following vulnerability has been resolved:
pstore/ram: Fix crash when setting number of cpus to an odd number
When the number of cpu cores is adjusted to 7 or other odd numbers,
the zone size will become an odd number.
The address of the zone will become:
addr of zone0 = BASE
addr of zone1 = BASE + zone_size
addr of zone2 = BASE + zone_size*2
...
The address of zone1/3/5/7 will be mapped to non-alignment va.
Eventually crashes will occur when accessing these va.
So, use ALIGN_DOWN() to make sure the zone size is even
to avoid this bug.
Aliases
{
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
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"aliases": [
"CVE-2023-52619"
],
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\npstore/ram: Fix crash when setting number of cpus to an odd number\n\nWhen the number of cpu cores is adjusted to 7 or other odd numbers,\nthe zone size will become an odd number.\nThe address of the zone will become:\n addr of zone0 = BASE\n addr of zone1 = BASE + zone_size\n addr of zone2 = BASE + zone_size*2\n ...\nThe address of zone1/3/5/7 will be mapped to non-alignment va.\nEventually crashes will occur when accessing these va.\n\nSo, use ALIGN_DOWN() to make sure the zone size is even\nto avoid this bug.",
"id": "GSD-2023-52619",
"modified": "2024-03-07T06:01:45.430366Z",
"schema_version": "1.4.0"
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\npstore/ram: Fix crash when setting number of cpus to an odd number\n\nWhen the number of cpu cores is adjusted to 7 or other odd numbers,\nthe zone size will become an odd number.\nThe address of the zone will become:\n addr of zone0 = BASE\n addr of zone1 = BASE + zone_size\n addr of zone2 = BASE + zone_size*2\n ...\nThe address of zone1/3/5/7 will be mapped to non-alignment va.\nEventually crashes will occur when accessing these va.\n\nSo, use ALIGN_DOWN() to make sure the zone size is even\nto avoid this bug."
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"url": "https://git.kernel.org/stable/c/cd40e43f870cf21726b22487a95ed223790b3542"
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"cve": {
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\npstore/ram: Fix crash when setting number of cpus to an odd number\n\nWhen the number of cpu cores is adjusted to 7 or other odd numbers,\nthe zone size will become an odd number.\nThe address of the zone will become:\n addr of zone0 = BASE\n addr of zone1 = BASE + zone_size\n addr of zone2 = BASE + zone_size*2\n ...\nThe address of zone1/3/5/7 will be mapped to non-alignment va.\nEventually crashes will occur when accessing these va.\n\nSo, use ALIGN_DOWN() to make sure the zone size is even\nto avoid this bug."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: pstore/ram: soluciona el fallo al establecer el n\u00famero de CPU en un n\u00famero impar. Cuando el n\u00famero de n\u00facleos de CPU se ajusta a 7 u otros n\u00fameros impares, el tama\u00f1o de la zona se convertir\u00e1 en un n\u00famero impar. La direcci\u00f3n de la zona se convertir\u00e1 en: direcci\u00f3n de zona0 = BASE direcci\u00f3n de zona1 = BASE + tama\u00f1o_zona direcci\u00f3n de zona2 = BASE + tama\u00f1o_zona*2 ... La direcci\u00f3n de zona1/3/5/7 se asignar\u00e1 a va no alineada . Eventualmente se producir\u00e1n fallas al acceder a estos va. Entonces, use ALIGN_DOWN() para asegurarse de que el tama\u00f1o de la zona sea uniforme para evitar este error."
}
],
"id": "CVE-2023-52619",
"lastModified": "2024-03-18T12:38:25.490",
"metrics": {},
"published": "2024-03-18T11:15:09.170",
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"url": "https://git.kernel.org/stable/c/0593cfd321df9001142a9d2c58d4144917dff7ee"
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],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
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- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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