Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: s390/ism: folio_put() after error dmb->cpu_addr was allocated via folio_alloc(). Use folio_put() instead of kfree() in the error exit of ism_alloc_dmb() to avoid slab allocator corruption. While at it, reset dmb->cpu_addr after folio_put to avoid unintentional UAF by future callers.
References
- https://git.kernel.org/stable/c/60983356fab0c1171c5cb1b56a36349ebadc608e
- https://git.kernel.org/stable/c/890e2ef726904d1d8328e4b9f5090eeb8761b9d1
- https://git.kernel.org/stable/c/907a56ab3eb8a58500a58daa76087f17bb2b6826
- https://git.kernel.org/stable/c/90f6f5cb331af52b14c0f309fb27dc243e8e2982
- https://git.kernel.org/stable/c/eebb6a9017b55ac05be770cf7b89f9da49505ae7
FAQ
What is CVE-2026-98024?
CVE-2026-98024 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: s390/ism: folio_put() after error dmb->cpu_addr was allocated via folio_alloc(). Use folio_put() instead of kfree() in the error e...
How severe is CVE-2026-98024?
CVSS scoring is not yet available for CVE-2026-98024. Check NVD for updates.
Is there a patch for CVE-2026-98024?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.