VDB
RHSA-2026:59147
RHSA-2026:59147
PUBLISHED
CVSS 7 HIGH
A flaw was found in the Linux kernel. When the kernel's real-time mutex (rtmutex) component performs a specific operation called 'proxy-lock rollback' during futex requeue, it incorrectly handles task pointers. This can lead to a 'Use-After-Free' (UAF) vulnerability, where the system attempts to use memory that has already been released. A local attacker could potentially exploit this to gain elevated privileges or execute unauthorized code.
Risk Scores
CVSS 3.1
7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | kpatch-patch-5_14_0-284_134_1-debugsource-0:1-14.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-14.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_117_1-0:1-20.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-20.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_172_1-debuginfo-0:1-7.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-7.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_172_1-debugsource-0:1-7.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-7.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_172_1-debuginfo-0:1-7.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-7.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_134_1-0:1-14.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-14.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_134_1-debuginfo-0:1-14.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-14.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_172_1-0:1-7.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-7.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_117_1-0:1-20.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-20.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_117_1-0:1-20.el9_2.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-20.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_117_1-debugsource-0:1-20.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-20.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_134_1-debugsource-0:1-14.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-14.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_148_1-debuginfo-0:1-12.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-12.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_148_1-debugsource-0:1-12.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-12.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_158_1-debugsource-0:1-10.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-10.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_148_1-0:1-12.el9_2.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-12.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_158_1-debugsource-0:1-10.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-10.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_134_1-0:1-14.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-14.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_134_1-debuginfo-0:1-14.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-14.el9_2 |
| Red Hat | kpatch-patch-5_14_0-284_172_1-0:1-7.el9_2.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) | 0:1-7.el9_2 |
…and 15 more
Timeline
- Aug 24, 2026 CVE Published
- Aug 25, 2026 CVE Updated
- Aug 25, 2026 Distribution Patch
- Aug 25, 2026 Distribution Patch
- Aug 25, 2026 Security Advisory
- Aug 25, 2026 Security Advisory
- Aug 25, 2026 Security Advisory
- Aug 25, 2026 Security Advisory
- Aug 25, 2026 Security Advisory
- Aug 25, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:59147 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2480453 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2481922 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2482523 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2482564 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2507402 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_59147.json advisory
- https://access.redhat.com/security/cve/CVE-2026-43499 advisory
- https://access.redhat.com/security/vulnerabilities/RHSB-2026-010 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-43499 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-43499 advisory
- https://lore.kernel.org/linux-cve-announce/2026052158-CVE-2026-43499-1294@gregkh/T advisory
- https://access.redhat.com/security/cve/CVE-2026-45984 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-45984 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-45984 advisory
- https://lore.kernel.org/linux-cve-announce/2026052739-CVE-2026-45984-107d@gregkh/T advisory
- https://access.redhat.com/security/cve/CVE-2026-46116 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-46116 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-46116 advisory
…and 9 more