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Attributed metadata history

REPORTPUBLIC METADATA

CVE-2021-25458: Kernel NULL Pointer Dereference in Exynos ION Implementation

There is an ION memory buffer type confusion vulnerability in the Exynos ION kernel driver. The vulnerability can cause zero initialised memory to be treated as a valid pointer and cause a kernel NULL pointer exception. Untrusted applications can abuse this bug to cause a kernel crash and carry out DOS attacks agains the device. Vulnerability Details The vulnerable code is in ion_iovmm_map in driv

Reference details

Source category
Research & news
Report title
CVE-2021-25458: Kernel NULL Pointer Dereference in Exynos ION Implementation
First reported
Dec 13, 2021 00:00 UTC
Last reported
Dec 13, 2021 00:00 UTC
Catalog updated
Oct 08, 2026 03:51 UTC
Record ID
4c2122ad2a0838c503343d79af000fb9e00726a18d98dc1c93088194f61ee768

CVEs mentioned by sources

CVE-2021-25458

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
Dec 13, 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.