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Attributed metadata history

REPORTPUBLIC METADATA

CVE-2021-22412: Huawei NPU Kernel Driver Shared Memory Out of Bounds Write

Summary The NPU device’s kernel driver implements a set of ioctl handlers one of which uses unsanitized user data as an offset to retrieve a kernel structure. Fields of the structure are written with user provided values. A malicious actor can use this vulnerability to overwrite kernel memory with controlled data. The mmap handler is exposed through the /dev/davinci0 character device. Due to the a

Reference details

Source category
Research & news
Report title
CVE-2021-22412: Huawei NPU Kernel Driver Shared Memory Out of Bounds Write
First reported
Aug 02, 2021 00:00 UTC
Last reported
Aug 02, 2021 00:00 UTC
Catalog updated
Oct 08, 2026 03:51 UTC
Record ID
a5a751d4c23381d79e4ff62b58d1c491f0f818486b12853105adf45ee672659e

CVEs mentioned by sources

CVE-2021-22412

Published indicators

Network indicators are visibly defanged. This page does not make them clickable or send them to another service.

No validated file hashes or network indicators are stored for this record.

Source observations

src_350d40f2cc69277bca

Source-provided label
Not reported
Evidence class
mentioned in report
Confidence
Not reported
Observed
Aug 02, 2021 00:00 UTC
Retrieved
Oct 08, 2026 03:51 UTC

This record contains metadata and attribution only. It does not host, download, unpack, render, or execute malware samples.

Feed collection status

Sources represented on this page. Publication and observation dates describe the content; successful batch dates describe local collection. A recent batch does not certify complete coverage or current provider availability.

1 sources: 0 stale, 0 needing attention, 0 paused, 1 unverified.

Review source update dates and status
  • src_350d40f2cc69277bcaCollection status unverifiedLast successful batch: Unverified

Stale means older than twice the recorded collection interval, with a minimum of one hour; without an interval, the threshold is 24 hours. Cached content remains available while a feed is stale, paused, or unverified.