CVE-2021-46953 (GCVE-0-2021-46953)
Vulnerability from cvelistv5
Published
2024-02-27 18:40
Modified
2025-05-04 07:01
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure
When failing the driver probe because of invalid firmware properties,
the GTDT driver unmaps the interrupt that it mapped earlier.
However, it never checks whether the mapping of the interrupt actially
succeeded. Even more, should the firmware report an illegal interrupt
number that overlaps with the GIC SGI range, this can result in an
IPI being unmapped, and subsequent fireworks (as reported by Dann
Frazier).
Rework the driver to have a slightly saner behaviour and actually
check whether the interrupt has been mapped before unmapping things.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: ca9ae5ec4ef0ed13833b03297ab319676965492c Version: ca9ae5ec4ef0ed13833b03297ab319676965492c Version: ca9ae5ec4ef0ed13833b03297ab319676965492c Version: ca9ae5ec4ef0ed13833b03297ab319676965492c Version: ca9ae5ec4ef0ed13833b03297ab319676965492c Version: ca9ae5ec4ef0ed13833b03297ab319676965492c Version: ca9ae5ec4ef0ed13833b03297ab319676965492c |
||
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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