Moderate: kernel security update
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: HID: multitouch: fix slab out-of-bounds access in mt_report_fixup() (CVE-2025-39806) * kernel: audit: fix out-of-bounds read in audit_compare_dname_path() (CVE-2025-39840) * kernel: mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory (CVE-2025-39883) * kernel: sctp: avoid NULL dereference when chunk data buffer is missing (CVE-2025-40240) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: HID: multitouch: fix slab out-of-bounds access in mt_report_fixup() (CVE-2025-39806) * kernel: audit: fix out-of-bounds read in audit_compare_dname_path() (CVE-2025-39840) * kernel: mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory (CVE-2025-39883) * kernel: sctp: avoid NULL dereference when chunk data buffer is missing (CVE-2025-40240) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
05 / REFERENCES
Further evidence
- https://access.redhat.com/errata/RHSA-2026:0445
- https://access.redhat.com/security/cve/CVE-2025-39806
- https://access.redhat.com/security/cve/CVE-2025-39840
- https://access.redhat.com/security/cve/CVE-2025-39883
- https://access.redhat.com/security/cve/CVE-2025-40240
- https://bugzilla.redhat.com/2395807
- https://bugzilla.redhat.com/2396936
- https://bugzilla.redhat.com/2397553
- https://bugzilla.redhat.com/2418832
- https://errata.almalinux.org/9/ALSA-2026-0445.html