VDB

RHSA-2026:85979

RHSA-2026:85979 PUBLISHED CVSS 8.800000190734863 HIGH

A flaw was found in the Linux kernel. A local attacker or untrusted guest virtual machine can exploit this vulnerability by transmitting network packets containing malformed checksum metadata into the IPv4 networking subsystem. This failure to validate checksum metadata can corrupt memory during packet handling, potentially leading to arbitrary code execution on the host, a system crash resulting in Denial of Service (DoS), or information disclosure of sensitive memory.

Risk Scores

CVSS 3.1
8.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected Products

VendorProductVersions
Red Hatkernel-zfcpdump-debuginfo-0:6.12.0-55.112.1.el10_0.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-rt-debug-debuginfo-0:6.12.0-55.112.1.el10_0.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-modules-0:6.12.0-55.112.1.el10_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-devel-matched-0:6.12.0-55.112.1.el10_0.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-debuginfo-0:6.12.0-55.112.1.el10_0.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-debuginfo-0:6.12.0-55.112.1.el10_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-64k-devel-0:6.12.0-55.112.1.el10_0.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-rt-core-0:6.12.0-55.112.1.el10_0.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-rt-64k-debug-modules-extra-0:6.12.0-55.112.1.el10_0.aarch64 as a component of Red Hat Enterprise Linux Real Time EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-debug-debuginfo-0:6.12.0-55.112.1.el10_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatlibperf-debuginfo-0:6.12.0-55.112.1.el10_0.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-tools-debuginfo-0:6.12.0-55.112.1.el10_0.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-debuginfo-common-x86_64-0:6.12.0-55.112.1.el10_0.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-rt-64k-debug-0:6.12.0-55.112.1.el10_0.aarch64 as a component of Red Hat Enterprise Linux Real Time EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatperf-debuginfo-0:6.12.0-55.112.1.el10_0.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-64k-debuginfo-0:6.12.0-55.112.1.el10_0.aarch64 as a component of Red Hat Enterprise Linux Real Time EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-debug-modules-0:6.12.0-55.112.1.el10_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-64k-debug-devel-matched-0:6.12.0-55.112.1.el10_0.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-rt-devel-0:6.12.0-55.112.1.el10_0.aarch64 as a component of Red Hat Enterprise Linux Real Time EUS (v. 10.0)6.12.0-55.112.1.el10
Red Hatkernel-rt-debug-devel-0:6.12.0-55.112.1.el10_0.aarch64 as a component of Red Hat Enterprise Linux Real Time EUS (v. 10.0)6.12.0-55.112.1.el10

…and 287 more

Timeline

  • Oct 20, 2026 CVE Published
  • Oct 22, 2026 CVE Updated
  • Oct 22, 2026 Distribution Patch
  • Oct 22, 2026 Distribution Patch
  • Oct 22, 2026 Security Advisory
  • Oct 22, 2026 Security Advisory

References

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