USN-8960-1: Linux kernel (OEM) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - USB Gadget drivers; - Memory management; - Multiple devices driver; - ARM64 architecture; - EROFS file system; -...

CVE-2026-93097

A flaw was found in the Linux kernel's CXL mailbox cxl/mbox component. A malicious or malfunctioning device could exploit a vulnerability where an empty payload with a specific flag causes an infinite loop. This issue can lead to a system hang, preventing further poison operations and resulting i...

CVE-2026-93096

A flaw was found in the Linux kernel's CXL features. A concurrency vulnerability exists where multi-part Get/Set Feature transfers are not properly serialized. This allows two concurrent transfers to the same mailbox to interleave their parts, which can corrupt the device's transfer context. A...

CVE-2026-93079

A flaw was found in the Linux kernel's CXL Compute Express Link feature handling. The cxlctlgetfeature function does not properly validate the size of the output buffer against a user-controlled count value. This oversight allows a local attacker to provide a count larger than the allocated buffe...

CVE-2026-93078

A flaw was found in the Linux kernel's CXL Compute Express Link feature handling. The cxlctlsetfeature function, responsible for setting CXL features, does not properly validate the size of the output buffer provided by a user. If a local attacker provides an output buffer of zero length, it can...

CVE-2026-93077

A flaw was found in the Linux kernel's cxl/features component. The cxlgetfeature function, when reading feature data, uses a fixed output buffer size in a loop. This can lead to a buffer overflow if a connected device returns more data than the remaining buffer capacity, potentially allowing for...

CVE-2026-92484

A flaw was found in the Linux kernel's cxl/region component. This use-after-free vulnerability occurs when an error path releases a reference to a switch decoder prematurely. If this is the last reference, the decoder can be freed before its name is accessed for error logging, potentially leading...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: cxl: fixed a possible null-ptr-deref in cxlPCIinitafu|adapter. If deviceRegister fails in cxlPCIafu|adapter, the device is not added. In this case, deviceUnregister cannot be called in the error path; otherwise, a null-ptr-deref...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: cxl/port: Hold a reference to the port until the decoder is released. KASAN + DEBUGKOBJECTRELEASE reports a potential use-after-free in cxldecoderrelease. This function references its parent object, a cxlport, to free its id back...

Astra Linux – vulnerability in linux-5.10, linux-5.15, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: resource: fix regionintersects vs addmemorydrivermanaged On a system with CXL memory, the resource tree /proc/iomem related to CXL memory may look like something as follows. 490000000-50fffffff : CXL Window 0 490000000-50fffffff ...

Astra Linux – vulnerability in linux-5.10, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: nvdimm: Fix firmware activation deadlock scenarios Lockdep reports the following deadlock scenarios for CXL root devices: power-management, deviceprepare, operations, and deviceshutdown operations for ‘ndregion’ devices: Chain...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Do not attempt cleanup after a failure in cxlregionattach. The commit 5e42bcbc3fef “cxl/region: Decrement -nrtargets in case of error in cxlRegionattach” attempted to avoid initialization errors when -nrtargets exceed...

CVE-2026-97423

A flaw was found in the Linux kernel's Compute Express Link CXL subsystem. This vulnerability allows a local user to cause a Denial of Service DoS or system instability through an out-of-bounds memory access. During CXL region configuration, the kernel fails to validate that the partition index i...

MiracleLinux 9 : kernel-5.14.0-687.38.1.el9_8 (AXSA:2026-1922:85)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1922:85 advisory. kernel: cxl/port: Fix use after free of parentport in cxldetachep CVE-2026-31530 kernel: xen: AMD Zen 2 Processors: Privilege escalation via imprope...

SUSE CVE-2026-97423

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Validate partition index before array access constructregion reads cxled-part and uses it to index cxlds-part without checking for a negative value. If the partition was never resolved, part remains at its initial val...

AZL-103835 CVE-2026-97423 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Validate partition index before array access constructregion reads cxled-part and uses it to index cxlds-part without checking for a negative value. If the partition was never resolved, part remains at its initial val...

CVE-2026-97423

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Validate partition index before array access constructregion reads cxled-part and uses it to index cxlds-part without checking for a negative value. If the partition was never resolved, part remains at its initial val...

DEBIAN-CVE-2026-97423

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Validate partition index before array access constructregion reads cxled-part and uses it to index cxlds-part without checking for a negative value. If the partition was never resolved, part remains at its initial val...

UBUNTU-CVE-2026-97423

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Validate partition index before array access constructregion reads cxled-part and uses it to index cxlds-part without checking for a negative value. If the partition was never resolved, part remains at its initial val...

EUVD-2026-86036

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Validate partition index before array access constructregion reads cxled-part and uses it to index cxlds-part without checking for a negative value. If the partition was never resolved, part remains at its initial val...