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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-52992 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: fs/adfs: validate nzones in adfs_validate_bblk() Reject ADFS disc records with a zero zone count during boot block validation, before the disc record is used. When nzones is 0, adfs_read_map() passes it to kmalloc_array(0, ...) which returns ZERO_SIZE_PTR, and adfs_map_layout() then writes to dm[-1], causing an out-of-bounds write before the allocated buffer. adfs_validate_dr0() already rejects nzones != 1 for old-format images. Add the equivalent check to adfs_validate_bblk() for new-format images so that a crafted image with nzones == 0 is rejected at probe time. Found by syzkaller.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/1586bd2d2fb436a26df20a70e78b000d34a7d159 kernel.org
https://git.kernel.org/stable/c/1f0ed0f57f0fc87e46fe19a05435c214dc464be2 kernel.org
https://git.kernel.org/stable/c/33aafd2418a59c96c0389d47ea09026661fa9ec6 kernel.org
https://git.kernel.org/stable/c/60d82592ac8b5637fbed871381eb0a16df0a492e kernel.org
https://git.kernel.org/stable/c/6ff8cca5cdb4f2e0ea6d28ecd78479dd3f221ebc kernel.org
https://git.kernel.org/stable/c/a11372a8b1ceaa5e950a84b3b5fbf8228f25e277 kernel.org
https://git.kernel.org/stable/c/a3fd5dc1c7b0aae947a67dc2e2c037d57557a4de kernel.org
https://git.kernel.org/stable/c/dd9d3e16c2d5fa166e13dce07413be51f42c8f5d kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-52992
NVD Published Date:
06/24/2026
NVD Last Modified:
06/24/2026
Source:
kernel.org