fkie_cve-2021-47016
Vulnerability from fkie_nvd
Published
2024-02-29 23:15
Modified
2025-01-09 19:52
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
m68k: mvme147,mvme16x: Don't wipe PCC timer config bits
Don't clear the timer 1 configuration bits when clearing the interrupt flag
and counter overflow. As Michael reported, "This results in no timer
interrupts being delivered after the first. Initialization then hangs
in calibrate_delay as the jiffies counter is not updated."
On mvme16x, enable the timer after requesting the irq, consistent with
mvme147.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nm68k: mvme147,mvme16x: Don\u0027t wipe PCC timer config bits\n\nDon\u0027t clear the timer 1 configuration bits when clearing the interrupt flag\nand counter overflow. As Michael reported, \"This results in no timer\ninterrupts being delivered after the first. Initialization then hangs\nin calibrate_delay as the jiffies counter is not updated.\"\n\nOn mvme16x, enable the timer after requesting the irq, consistent with\nmvme147."
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{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: m68k: mvme147,mvme16x: No borre los bits de configuraci\u00f3n del temporizador PCC. No borre los bits de configuraci\u00f3n del temporizador 1 al borrar el indicador de interrupci\u00f3n y el desbordamiento del contador. Como inform\u00f3 Michael, \"Esto da como resultado que no se entreguen interrupciones del temporizador despu\u00e9s de la primera. Luego, la inicializaci\u00f3n se bloquea en calibrate_delay porque el contador de santiam\u00e9n no se actualiza\". En mvme16x, habilite el temporizador despu\u00e9s de solicitar irq, de acuerdo con mvme147."
}
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"id": "CVE-2021-47016",
"lastModified": "2025-01-09T19:52:27.117",
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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