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-2026-93077

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...

SUSE CVE-2026-93096

In the Linux kernel, the following vulnerability has been resolved: cxl/features: Serialize multi-part Get/Set Feature transfers A Get or Set Feature payload larger than the mailbox payload size is split into several mailbox commands. mboxmutex only serializes individual mailbox commands and is...

SUSE CVE-2026-93077

In the Linux kernel, the following vulnerability has been resolved: cxl/features: Clamp Get Feature output size to the remaining buffer cxlgetfeature reads a feature in a loop but passes a fixed sizeout as the output capacity every iteration. On the last partial iteration the buffer has less room...

SUSE CVE-2026-93078

In the Linux kernel, the following vulnerability has been resolved: cxl/features: Reject Set Features output buffer smaller than the header cxlctlsetfeature sizes its output buffer from the user's fwctlrpc.outlen but never checks it is large enough to hold even the fwctlrpccxlout header. With...

SUSE CVE-2026-93079

In the Linux kernel, the following vulnerability has been resolved: cxl/features: Reject Get Feature count larger than the output buffer cxlctlgetfeature sizes its output buffer from the user's fwctlrpc.outlen, but the device is told to write cxlmboxgetfeatin.count bytes into rpcout-payload, whic...

Linux Distros Unpatched Vulnerability : CVE-2026-93077

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - cxl/features: Clamp Get Feature output size to the remaining buffer cxlgetfeature reads a feature in a loop but passes a fixed sizeout as the output capacity...

Linux Distros Unpatched Vulnerability : CVE-2026-93096

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - cxl/features: Serialize multi-part Get/Set Feature transfers A Get or Set Feature payload larger than the mailbox payload size is split into several mailbox...

Linux Distros Unpatched Vulnerability : CVE-2026-93079

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - cxl/features: Reject Get Feature count larger than the output buffer cxlctlgetfeature sizes its output buffer from the user's fwctlrpc.outlen, but the device is...

DEBIAN-CVE-2026-93096

In the Linux kernel, the following vulnerability has been resolved: cxl/features: Serialize multi-part Get/Set Feature transfers A Get or Set Feature payload larger than the mailbox payload size is split into several mailbox commands. mboxmutex only serializes individual mailbox commands and is...

CVE-2026-93096

In the Linux kernel, the following vulnerability has been resolved: cxl/features: Serialize multi-part Get/Set Feature transfers A Get or Set Feature payload larger than the mailbox payload size is split into several mailbox commands. mboxmutex only serializes individual mailbox commands and is...

DEBIAN-CVE-2026-93079

In the Linux kernel, the following vulnerability has been resolved: cxl/features: Reject Get Feature count larger than the output buffer cxlctlgetfeature sizes its output buffer from the user's fwctlrpc.outlen, but the device is told to write cxlmboxgetfeatin.count bytes into rpcout-payload, whic...

DEBIAN-CVE-2026-93078

In the Linux kernel, the following vulnerability has been resolved: cxl/features: Reject Set Features output buffer smaller than the header cxlctlsetfeature sizes its output buffer from the user's fwctlrpc.outlen but never checks it is large enough to hold even the fwctlrpccxlout header. With...

CVE-2026-93078

In the Linux kernel, the following vulnerability has been resolved: cxl/features: Reject Set Features output buffer smaller than the header cxlctlsetfeature sizes its output buffer from the user's fwctlrpc.outlen but never checks it is large enough to hold even the fwctlrpccxlout header. With...

CVE-2026-93079

In the Linux kernel, the following vulnerability has been resolved: cxl/features: Reject Get Feature count larger than the output buffer cxlctlgetfeature sizes its output buffer from the user's fwctlrpc.outlen, but the device is told to write cxlmboxgetfeatin.count bytes into rpcout-payload, whic...

CVE-2026-93096

CVE-2026-93096 is a concurrency bug in the Linux kernel's CXL (Compute Express Link) features subsystem . When a Get or Set Feature payload exceeds the mailbox payload size, it is split across multiple mailbox commands. The existing mbox_mutex serializes only individual commands and is dropped be...

CVE-2026-93096 cxl/features: Serialize multi-part Get/Set Feature transfers

In the Linux kernel, the following vulnerability has been resolved: cxl/features: Serialize multi-part Get/Set Feature transfers A Get or Set Feature payload larger than the mailbox payload size is split into several mailbox commands. mboxmutex only serializes individual mailbox commands and is...

EUVD-2026-82204

In the Linux kernel, the following vulnerability has been resolved: cxl/features: Serialize multi-part Get/Set Feature transfers A Get or Set Feature payload larger than the mailbox payload size is split into several mailbox commands. mboxmutex only serializes individual mailbox commands and is...

CVE-2026-93079

CVE-2026-93079 is a heap out-of-bounds write in the Linux kernel's CXL subsystem. In cxlctl_get_feature(), the output buffer is sized from the user-supplied fwctl_rpc.out_len, but the device is instructed to write cxl_mbox_get_feat_in.count bytes into that buffer. Because count is a separate user...

CVE-2026-93079 cxl/features: Reject Get Feature count larger than the output buffer

In the Linux kernel, the following vulnerability has been resolved: cxl/features: Reject Get Feature count larger than the output buffer cxlctlgetfeature sizes its output buffer from the user's fwctlrpc.outlen, but the device is told to write cxlmboxgetfeatin.count bytes into rpcout-payload, whic...