CVE-2026-64027

A flaw was found in the net/shaper component of the Linux kernel. A race condition exists in how VALID marks are handled for entries in an XArray. This can lead to a Use-After-Free UAF vulnerability, where memory is incorrectly freed while still in use, potentially allowing an attacker to cause a...

SUSE CVE-2026-64027

In the Linux kernel, the following vulnerability has been resolved: net: shaper: rework the VALID marking again Recent commit changed the semantics from NOTVALID to VALID. I didn't realize that the flags are not stored atomically with the entry in XArray. There's still a race of reader observing ...

CVE-2026-64054

A flaw was found in the net/shaper component of the Linux kernel. This vulnerability occurs because the netshapernlgroupdoit function does not properly handle duplicate leaf entries in a GROUP request. A local attacker could exploit this by supplying the same leaf handle multiple times, leading t...

Linux Distros Unpatched Vulnerability : CVE-2026-64027

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: shaper: rework the VALID marking again Recent commit changed the semantics from NOTVALID to VALID. I didn't realize that the flags are not stored atomicall...

CVE-2026-64054

In the Linux kernel, the following vulnerability has been resolved: net: shaper: reject duplicate leaves in GROUP request netshapernlgroupdoit does not deduplicate NETSHAPERALEAVES entries. When userspace supplies the same leaf handle twice, the same old-parent pointer lands twice in oldnodes. Th...

CVE-2026-64027

In the Linux kernel, the following vulnerability has been resolved: net: shaper: rework the VALID marking again Recent commit changed the semantics from NOTVALID to VALID. I didn't realize that the flags are not stored atomically with the entry in XArray. There's still a race of reader observing ...

CVE-2026-64054 net: shaper: reject duplicate leaves in GROUP request

In the Linux kernel, the following vulnerability has been resolved: net: shaper: reject duplicate leaves in GROUP request netshapernlgroupdoit does not deduplicate NETSHAPERALEAVES entries. When userspace supplies the same leaf handle twice, the same old-parent pointer lands twice in oldnodes. Th...

EUVD-2026-45627

In the Linux kernel, the following vulnerability has been resolved: net: shaper: reject duplicate leaves in GROUP request netshapernlgroupdoit does not deduplicate NETSHAPERALEAVES entries. When userspace supplies the same leaf handle twice, the same old-parent pointer lands twice in oldnodes. Th...

CVE-2026-64054

CVE-2026-64054 concerns the Linux kernel net: shaper GROUP request handling. The issue in net_shaper_nl_group_doit() failed to deduplicate NET_SHAPER_A_LEAVES entries, causing the same old-parent pointer to be added twice to old_nodes[]. The cleanup loop could then double-free the same parent, pa...

CVE-2026-64054 net: shaper: reject duplicate leaves in GROUP request

In the Linux kernel, the following vulnerability has been resolved: net: shaper: reject duplicate leaves in GROUP request netshapernlgroupdoit does not deduplicate NETSHAPERALEAVES entries. When userspace supplies the same leaf handle twice, the same old-parent pointer lands twice in oldnodes. Th...

CVE-2026-64027 net: shaper: rework the VALID marking (again)

In the Linux kernel, the following vulnerability has been resolved: net: shaper: rework the VALID marking again Recent commit changed the semantics from NOTVALID to VALID. I didn't realize that the flags are not stored atomically with the entry in XArray. There's still a race of reader observing ...

EUVD-2026-45600

In the Linux kernel, the following vulnerability has been resolved: net: shaper: rework the VALID marking again Recent commit changed the semantics from NOTVALID to VALID. I didn't realize that the flags are not stored atomically with the entry in XArray. There's still a race of reader observing ...

CVE-2026-64027

The CVE-2026-64027 issue affects the Linux kernel net: shaper component (XArray-based marking of entries). A race occurs when a reader observes a VALID mark is later invalidated by a writer reusing a slot, potentially leading to a use-after-free if net_shaper_rollback() frees entries without obse...

CVE-2026-64027 net: shaper: rework the VALID marking (again)

In the Linux kernel, the following vulnerability has been resolved: net: shaper: rework the VALID marking again Recent commit changed the semantics from NOTVALID to VALID. I didn't realize that the flags are not stored atomically with the entry in XArray. There's still a race of reader observing ...

CVE-2026-64027

In the Linux kernel, the following vulnerability has been resolved: net: shaper: rework the VALID marking again Recent commit changed the semantics from NOTVALID to VALID. I didn't realize that the flags are not stored atomically with the entry in XArray. There's still a race of reader observing ...

PT-2026-61344

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the network shaper component due to the non-atomic storage of flags within the XArray. A reader may observe a VALID mark for a slot but be interrupted before...

PT-2026-61371

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the network shaper component where the net shaper nl group doit function fails to deduplicate NET SHAPER A LEAVES entries. If a user provides the same leaf handle multip...

SUSE-SU-2026:22034-1 Security update for the Linux Kernel (Live Patch 8 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.29.1 fixes various security issues The following security issues were fixed: - CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption bsc1264096. - CVE-2026-23437: net: shaper: protect late read accesses to the hierarchy bsc1261845. -...

SUSE-SU-2026:21973-1 Security update for the Linux Kernel (Live Patch 8 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.29.1 fixes various security issues The following security issues were fixed: - CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption bsc1264096. - CVE-2026-23437: net: shaper: protect late read accesses to the hierarchy bsc1261845. -...

SUSE-SU-2026:21968-1 Security update for the Linux Kernel (Live Patch 9 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.30.1 fixes various security issues The following security issues were fixed: - CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption bsc1264096. - CVE-2026-23437: net: shaper: protect late read accesses to the hierarchy bsc1261845. -...