VDB
RHSA-2026:83796
RHSA-2026:83796
PUBLISHED
CVSS 7 HIGH
A flaw was found in the Linux kernel's Asynchronous Transfer Mode (ATM) networking component. A local attacker, by acting as a malicious signaling daemon, could send a specially crafted message containing an unvalidated pointer. This unvalidated pointer would be directly used by the kernel, leading to the dereference of an arbitrary memory address. The consequence is a system crash, resulting in a Denial of Service (DoS).
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 | python-perf-debuginfo-0:2.6.32-754.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | 2.6.32-754.65.1.el6.x86 |
| Red Hat | python-perf-debuginfo-0:2.6.32-754.65.1.el6.i686 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION) | 2.6.32-754.65.1.el6.i686 |
| Red Hat | kernel-debuginfo-0:2.6.32-754.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | 2.6.32-754.65.1.el6.x86 |
| Red Hat | perf-0:2.6.32-754.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | 2.6.32-754.65.1.el6.x86 |
| Red Hat | kernel-debuginfo-common-x86_64-0:2.6.32-754.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION) | 2.6.32-754.65.1.el6.x86 |
| Red Hat | kernel-devel-0:2.6.32-754.65.1.el6.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | 2.6.32-754.65.1.el6.i686 |
| Red Hat | kernel-debuginfo-common-i686-0:2.6.32-754.65.1.el6.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | 2.6.32-754.65.1.el6.i686 |
| Red Hat | perf-debuginfo-0:2.6.32-754.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | 2.6.32-754.65.1.el6.x86 |
| Red Hat | kernel-firmware-0:2.6.32-754.65.1.el6.noarch as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | 2.6.32-754.65.1.el6.noarch |
| Red Hat | perf-0:2.6.32-754.65.1.el6.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | 2.6.32-754.65.1.el6.i686 |
| Red Hat | kernel-debug-devel-0:2.6.32-754.65.1.el6.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | 2.6.32-754.65.1.el6.i686 |
| Red Hat | kernel-abi-whitelists-0:2.6.32-754.65.1.el6.noarch as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | 2.6.32-754.65.1.el6.noarch |
| Red Hat | kernel-debug-0:2.6.32-754.65.1.el6.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | 2.6.32-754.65.1.el6.i686 |
| Red Hat | python-perf-debuginfo-0:2.6.32-754.65.1.el6.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | 2.6.32-754.65.1.el6.i686 |
| Red Hat | kernel-debuginfo-0:2.6.32-754.65.1.el6.s390x as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION) | 2.6.32-754.65.1.el6.s390x |
| Red Hat | python-perf-0:2.6.32-754.65.1.el6.s390x as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION) | 2.6.32-754.65.1.el6.s390x |
| Red Hat | kernel-doc-0:2.6.32-754.65.1.el6.noarch as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | 2.6.32-754.65.1.el6.noarch |
| Red Hat | perf-debuginfo-0:2.6.32-754.65.1.el6.s390x as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | 2.6.32-754.65.1.el6.s390x |
| Red Hat | perf-0:2.6.32-754.65.1.el6.s390x as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | 2.6.32-754.65.1.el6.s390x |
| Red Hat | kernel-debug-debuginfo-0:2.6.32-754.65.1.el6.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | 2.6.32-754.65.1.el6.i686 |
…and 36 more
Timeline
- Oct 16, 2026 CVE Published
- Oct 19, 2026 CVE Updated
- Oct 19, 2026 Distribution Patch
- Oct 19, 2026 Distribution Patch
- Oct 19, 2026 Security Advisory
- Oct 19, 2026 Security Advisory
- Oct 19, 2026 Security Advisory
- Oct 19, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:83796 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=2502326 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2502327 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_83796.json 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-2026-63922 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-63922 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-63922 advisory
- https://lore.kernel.org/linux-cve-announce/2026071948-CVE-2026-63922-5716@gregkh/T advisory
- https://access.redhat.com/security/cve/CVE-2026-63924 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-63924 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-63924 advisory
- https://lore.kernel.org/linux-cve-announce/2026071948-CVE-2026-63924-ec60@gregkh/T advisory