CVE-2026-98024

high

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/eebb6a9017b55ac05be770cf7b89f9da49505ae7

https://git.kernel.org/stable/c/907a56ab3eb8a58500a58daa76087f17bb2b6826

https://git.kernel.org/stable/c/890e2ef726904d1d8328e4b9f5090eeb8761b9d1

https://git.kernel.org/stable/c/60983356fab0c1171c5cb1b56a36349ebadc608e

Details

Source: Mitre, NVD

Published: 2026-09-25

Updated: 2026-09-25

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Severity: High

EPSS

EPSS: 0.00168