CVE-2026-90202
scsi: mpt3sas: Avoid freeing unallocated PCIe SGL buffers
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: mpt3sas: Avoid freeing unallocated PCIe SGL buffers _base_release_memory_pools() unconditionally frees every ioc->pcie_sg_lookup[] entry, including ones the setup loop never allocated after a partial failure, causing a "bad dma" warning on debug kernels or a NULL pointer dereference otherwise.
INFO
Published Date :
Sept. 17, 2026, 5:17 p.m.
Last Modified :
Sept. 17, 2026, 5:17 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Update the Linux kernel to the latest version.
- Apply the specific patch for mpt3sas memory management.
- Rebuild and install the updated kernel.
- Reboot the system to load the new kernel.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-90202.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-90202 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-90202
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-90202 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-90202 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 17, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: scsi: mpt3sas: Avoid freeing unallocated PCIe SGL buffers _base_release_memory_pools() unconditionally frees every ioc->pcie_sg_lookup[] entry, including ones the setup loop never allocated after a partial failure, causing a "bad dma" warning on debug kernels or a NULL pointer dereference otherwise. Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/90xxx/CVE-2026-90202.json">CVE-2026-90202</a> Added Reference https://git.kernel.org/stable/c/240b582b6372bebb1245d911add9954b7dd6c02d Added Reference https://git.kernel.org/stable/c/2dbdd025b228110ccbfbab95fe16e098313a14af Added Reference https://git.kernel.org/stable/c/3361709fb6f6568b157c6f24ed21a4a5d86d73db Added Reference https://git.kernel.org/stable/c/a61181f9ee30a98d2350c1bff32954a7521f9a23 Added Reference https://git.kernel.org/stable/c/afedf35df054bd713e9e13771aa0a056932c5c67 Added Reference https://git.kernel.org/stable/c/b9f679dfe629004b593f018df33b330d799bcee4 Added Reference https://git.kernel.org/stable/c/bc3398db3b64729b4a7907af317daad04795ad40 Added Reference https://git.kernel.org/stable/c/e2cd23443d3616ea0876f27762b17e2ec67d896c