CVE-2026-89925
Published Sep 16, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix memory leak in guest debug handling bp_data is freed only for the error case by kfree(bp_data). Every successful KVM_SET_GUEST_DEBUG will leak bp_data.
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References
Other References
https://git.kernel.org/stable/c/121ea1de927c8b9bfdf53c31cad27b86d5de0293
https://git.kernel.org/stable/c/39e7cebb889839b5762c9ad22e2d715b5883b288
https://git.kernel.org/stable/c/44bf3792c10f4bb3de507391f1837e020d92eaa2
https://git.kernel.org/stable/c/581be9f6085834188cef1ad2f07babf3b421e409
https://git.kernel.org/stable/c/58b1b729a9f90c80b508fc3e2174cbc0ee50859e
https://git.kernel.org/stable/c/5940418e4232a2ff1d30ba12e0d213dbf48f0a83
https://git.kernel.org/stable/c/9071f75cbde3bf46119cb28e92cfbef830c4bf97
https://git.kernel.org/stable/c/fc2034c431adcbaabf5f8a01912358f07355349e
Frequently Asked Questions
What is CVE-2026-89925? +
In the Linux kernel, the following vulnerability has been resolved:
KVM: s390: Fix memory leak in guest debug handling
bp_data is freed only for the error case by kfree(bp_data).
Every successful KVM_SET_GUEST_DEBUG will leak bp_data.
How do I check if I'm vulnerable to CVE-2026-89925? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.