Is there a public exploit for CVE-2026-99240?

No public exploit for CVE-2026-99240 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

What does CVE-2026-99240 affect?

CVE-2026-99240 affects Linux Linux.

— Unscored

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: error damoscommitquotagoal() for zero targetvalue Patch…

CVE-2026-99240

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: error damoscommitquotagoal() for zero targetvalue Patch series "mm/damon: move zero damos quota targetvalue handling to the core layer". Having zero DAMOS quota target value can cause division by zero. DAMON API callers are checking the target value parameters to avoid that. It is easy to make mistakes in some of the multiple API callers. Move that to the core layer. Patch 1 adds the corner case handling into the core layer DAMON parameters validation logic. Patches 2 and 3 remove no more needed DAMON API callers side handling of the corner case in DAMONLRUSORT and DMONSAMPLIEMTIER, respectively. This patch (of 3): If a DAMOS scheme has a damosquotagoal of zero targetvalue, damosquotagoal() could trigger division-by-zero error. Hence each DAMON API callers should do the zero targetvalue validation. It is easy to make mistakes. Actually such bugs in DAMONLRUSORT and DAMONSAMPLEMTIER were found and fixed [1]. It is better to handle the corner case only once in the core layer, instead of multiple places in all DAMON API callers. One straightforward option is using an alternative denominator for the…

Assessment

CVSS: Not yet scored
Severity: Unscored
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 2 November 2026
Last updated: 2 November 2026
Affected: Linux · Linux
Assigner: Linux

At the source

EUVD (ENISA)

References

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