VDB
RHSA-2026:56573
RHSA-2026:56573
PUBLISHED
CVSS 8.100000381469727 HIGH
A flaw was found in the Linux kernel's CIFS (Common Internet File System) client. When the `cifs_sanitize_prepath` function processes specially crafted input, such as an empty string or a string containing only delimiters, it can attempt to read data beyond its allocated memory buffer. This out-of-bounds read can lead to a system crash, resulting in a denial of service.
Risk Scores
CVSS 3.1
8.100000381469727
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | bpftool-debuginfo-0:7.3.0-427.145.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4) | 7.3.0-427.145.1.el9 |
| Red Hat | kernel-modules-extra-0:5.14.0-427.145.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | rv-0:5.14.0-427.145.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | kernel-doc-0:5.14.0-427.145.1.el9_4.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | kernel-rt-debuginfo-0:5.14.0-427.145.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | bpftool-debuginfo-0:7.3.0-427.145.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) | 7.3.0-427.145.1.el9 |
| Red Hat | kernel-rt-0:5.14.0-427.145.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | perf-debuginfo-0:5.14.0-427.145.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | libperf-debuginfo-0:5.14.0-427.145.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | kernel-rt-debuginfo-0:5.14.0-427.145.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | kernel-debuginfo-common-ppc64le-0:5.14.0-427.145.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | kernel-debug-devel-matched-0:5.14.0-427.145.1.el9_4.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | kernel-devel-matched-0:5.14.0-427.145.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | kernel-64k-modules-extra-0:5.14.0-427.145.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | kernel-debug-debuginfo-0:5.14.0-427.145.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | perf-0:5.14.0-427.145.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | kernel-debug-debuginfo-0:5.14.0-427.145.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | python3-perf-debuginfo-0:5.14.0-427.145.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | perf-debuginfo-0:5.14.0-427.145.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4) | 5.14.0-427.145.1.el9 |
| Red Hat | kernel-debug-modules-extra-0:5.14.0-427.145.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4) | 5.14.0-427.145.1.el9 |
…and 213 more
Timeline
- Aug 19, 2026 CVE Published
- Aug 24, 2026 CVE Updated
- Aug 24, 2026 Distribution Patch
- Aug 24, 2026 Distribution Patch
- Aug 24, 2026 Security Advisory
- Aug 24, 2026 Security Advisory
- Aug 24, 2026 Security Advisory
- Aug 24, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:56573 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2456521 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2467015 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2477784 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_56573.json advisory
- https://access.redhat.com/security/cve/CVE-2025-54518 advisory
- https://www.cve.org/CVERecord?id=CVE-2025-54518 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-54518 advisory
- http://www.openwall.com/lists/oss-security/2026/05/12/15 advisory
- http://xenbits.xen.org/xsa/advisory-490.html advisory
- https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-7052.html advisory
- https://access.redhat.com/security/cve/CVE-2026-31411 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-31411 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-31411 advisory
- https://lore.kernel.org/linux-cve-announce/2026040820-CVE-2026-31411-7ef9@gregkh/T advisory
- https://access.redhat.com/security/cve/CVE-2026-43112 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-43112 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-43112 advisory
- https://lore.kernel.org/linux-cve-announce/2026050625-CVE-2026-43112-f37f@gregkh/T advisory