VDB
RHSA-2026:77218
RHSA-2026:77218
PUBLISHED
CVSS 7.300000190734863 HIGH
A flaw was found in the Linux kernel's Server Message Block (SMB) client. A remote, untrusted server could send a specially crafted symlink error response, leading to an out-of-bounds read vulnerability. This could result in the disclosure of sensitive information from the kernel's memory to a local user through the readlink(2) system call.
Risk Scores
CVSS 3.1
7.300000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | kernel-debuginfo-0:5.14.0-427.154.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | kernel-debug-debuginfo-0:5.14.0-427.154.1.el9_4.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | kernel-rt-debug-debuginfo-0:5.14.0-427.154.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | bpftool-debuginfo-0:7.3.0-427.154.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) | 0:7.3.0-427.154.1.el9_4 |
| Red Hat | kernel-rt-debug-modules-extra-0:5.14.0-427.154.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | kernel-modules-0:5.14.0-427.154.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | perf-debuginfo-0:5.14.0-427.154.1.el9_4.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | kernel-tools-debuginfo-0:5.14.0-427.154.1.el9_4.s390x as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | libperf-debuginfo-0:5.14.0-427.154.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | kernel-rt-debug-debuginfo-0:5.14.0-427.154.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | kernel-rt-debug-0:5.14.0-427.154.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | kernel-modules-0:5.14.0-427.154.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | rtla-0:5.14.0-427.154.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | kernel-debuginfo-common-x86_64-0:5.14.0-427.154.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | perf-debuginfo-0:5.14.0-427.154.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | kernel-tools-debuginfo-0:5.14.0-427.154.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | kernel-debuginfo-common-x86_64-0:5.14.0-427.154.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | libperf-debuginfo-0:5.14.0-427.154.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | python3-perf-debuginfo-0:5.14.0-427.154.1.el9_4.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
| Red Hat | kernel-rt-debug-modules-core-0:5.14.0-427.154.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) | 0:5.14.0-427.154.1.el9_4 |
…and 213 more
Timeline
- Oct 7, 2026 CVE Published
- Oct 30, 2026 CVE Updated
- Oct 30, 2026 Distribution Patch
- Oct 30, 2026 Distribution Patch
- Oct 30, 2026 Security Advisory
- Oct 30, 2026 Security Advisory
- Oct 30, 2026 Security Advisory
- Oct 30, 2026 Security Advisory
- Oct 30, 2026 Security Advisory
- Oct 30, 2026 Security Advisory
- Oct 30, 2026 Security Advisory
- Oct 30, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:77218 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2461462 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2461480 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2482098 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2482127 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2482550 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2482618 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2492779 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2502326 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2502327 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2502330 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2502361 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2502368 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2502395 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2502412 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2502434 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2511448 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2513477 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2516448 issue
…and 89 more