VDB
RHSA-2026:86033
RHSA-2026:86033
PUBLISHED
CVSS 8.800000190734863 HIGH
A flaw was found in the Linux kernel's Open vSwitch (OVS) component. A race condition can occur during the destruction of a network device (netdev) tunnel, where the `ovs_netdev_tunnel_destroy()` function may attempt to release a device reference while other parts of the system are still actively using it. This timing issue, or race condition, could lead to system instability or a denial of service (DoS) due to improper resource handling.
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
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | libperf-0:5.14.0-687.59.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | kernel-rt-64k-debug-modules-core-0:5.14.0-687.59.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux Real Time (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | kernel-debuginfo-0:5.14.0-687.59.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | kernel-64k-debug-debuginfo-0:5.14.0-687.59.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux Real Time (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | kernel-rt-debuginfo-0:5.14.0-687.59.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | perf-debuginfo-0:5.14.0-687.59.1.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | kernel-zfcpdump-devel-0:5.14.0-687.59.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | kernel-zfcpdump-0:5.14.0-687.59.1.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | kernel-debug-debuginfo-0:5.14.0-687.59.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | kernel-zfcpdump-debuginfo-0:5.14.0-687.59.1.el9_8.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | kernel-debug-debuginfo-0:5.14.0-687.59.1.el9_8.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | kernel-modules-extra-0:5.14.0-687.59.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | python3-perf-debuginfo-0:5.14.0-687.59.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | libperf-debuginfo-0:5.14.0-687.59.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | perf-debuginfo-0:5.14.0-687.59.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | kernel-rt-64k-debug-devel-0:5.14.0-687.59.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux Real Time (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | libperf-debuginfo-0:5.14.0-687.59.1.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | kernel-core-0:5.14.0-687.59.1.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | kernel-64k-debuginfo-0:5.14.0-687.59.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux Real Time (v. 9) | 5.14.0-687.59.1.el9 |
| Red Hat | kernel-64k-debug-debuginfo-0:5.14.0-687.59.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 5.14.0-687.59.1.el9 |
…and 283 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
- Oct 22, 2026 Security Advisory
- Oct 22, 2026 Security Advisory
- Oct 22, 2026 Security Advisory
- Oct 22, 2026 Security Advisory
- Oct 22, 2026 Security Advisory
- Oct 22, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:86033 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2461761 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2492098 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2502325 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2502332 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2502333 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2502356 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2502462 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2502486 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2511413 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2516967 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2525413 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2532230 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2540391 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2540872 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2546491 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2553429 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_86033.json advisory
- https://access.redhat.com/security/cve/CVE-2026-31678 advisory
…and 59 more