CVE-2026-98024

s390/ism: folio_put() after error

CVE-2026-98024 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-98024, released September 29, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.1
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0017
6th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
linux · Debian 13.5 (trixie) 6.12.111-1 DEBIAN-CVE-2026-98024 Sep 29, 2026
linux · Debian 14 7.2.7-1 DEBIAN-CVE-2026-98024 Sep 29, 2026
linux-6.12 · Debian 12.15 (bookworm) 6.12.111-1~deb12u1 DEBIAN-CVE-2026-98024 Sep 29, 2026

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