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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-38312 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: fbdev: core: fbcvt: avoid division by 0 in fb_cvt_hperiod() In fb_find_mode_cvt(), iff mode->refresh somehow happens to be 0x80000000, cvt.f_refresh will become 0 when multiplying it by 2 due to overflow. It's then passed to fb_cvt_hperiod(), where it's used as a divider -- division by 0 will result in kernel oops. Add a sanity check for cvt.f_refresh to avoid such overflow... Found by Linux Verification Center (linuxtesting.org) with the Svace static analysis tool.


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/2d63433e8eaa3c91b2948190e395bc67009db0d9 kernel.org
https://git.kernel.org/stable/c/3f6dae09fc8c306eb70fdfef70726e1f154e173a kernel.org
https://git.kernel.org/stable/c/53784073cbad18f75583fd3da9ffdfc4d1f05405 kernel.org
https://git.kernel.org/stable/c/54947530663edcbaaee1314c01fdd8c72861b124 kernel.org
https://git.kernel.org/stable/c/610f247f2772e4f92b63442125a1b7ade79898d8 kernel.org
https://git.kernel.org/stable/c/9027ce4c037b566b658b8939a76326b7125e3627 kernel.org
https://git.kernel.org/stable/c/ab91647acdf43b984824776559a452212eaeb21a kernel.org
https://git.kernel.org/stable/c/b235393b9f43ff86a38ca2bde6372312ea215dc5 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-38312
NVD Published Date:
07/10/2025
NVD Last Modified:
07/10/2025
Source:
kernel.org