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VULNERABILITIES

CVE-2026-63954 Details

Description

In the Linux kernel, the following vulnerability has been resolved: hpfs: fix a crash if hpfs_map_dnode_bitmap fails If hpfs_map_dnode_bitmap fails, the code would call hpfs_brelse4 on uninitialized quad buffer head, causing a crash.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/010b08084000ef018f1a8de5197087f3b91d8cfe kernel.org
https://git.kernel.org/stable/c/0886c6f257fe3663f80218aa1919b0f3f21bf22c kernel.org
https://git.kernel.org/stable/c/1648a3c7f4e18f46a4881920133fc4f2494185a0 kernel.org
https://git.kernel.org/stable/c/1d73a533760bc5abb83b3cc759133596f7bb708f kernel.org
https://git.kernel.org/stable/c/4f37bb30b57d6d403d02673074555bd3c3602bef kernel.org

see all 8 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-63954
NVD Published Date:
Jul 19, 2026
NVD Last Modified:
Jul 27, 2026
Source:
kernel.org
CVE-2026-63954 Details - Not Deferred