CVE-2026-43473 Details
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Add NULL checks when resetting request and reply queues The driver encountered a crash during resource cleanup when the reply and request queues were NULL due to freed memory. This issue occurred when the creation of reply or request queues failed, and the driver freed the memory first, but attempted to mem set the content of the freed memory, leading to a system crash. Add NULL pointer checks for reply and request queues before accessing the reply/request memory during cleanup
A NULL pointer dereference vulnerability has been identified in the Linux kernel's SCSI MPI3MR driver. This issue arises during resource cleanup when the reply and request queues are NULL due to freed memory. The vulnerability occurs if the creation of these queues fails, leading the driver to free the memory prematurely. Subsequently, the driver attempts to overwrite the freed memory, causing a system crash. The vulnerability affects several versions of the Linux kernel.
Users can upgrade to the latest version of the Linux kernel, where this vulnerability has been addressed. Instructions for upgrading the kernel can be found in the official Linux kernel documentation.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/220d7ca70611a73d50ef8e9edac630ed1ececb7c | kernel.org | Patch |
| https://git.kernel.org/stable/c/78d3f201f8b609928eade53cf03a52df5415aaf7 | kernel.org | Patch |
| https://git.kernel.org/stable/c/7da755e0d02e9ca035065127e108d1fed8950dc8 | kernel.org | Patch |
| https://git.kernel.org/stable/c/7df0296ad4e9253d12c6dbe7f120044dddc95600 | kernel.org | Patch |
| https://git.kernel.org/stable/c/e978a36f332ede78eb4de037b517db16265d420d | kernel.org | Patch |
| https://git.kernel.org/stable/c/fa96392ebebc8fade2b878acb14cce0f71016503 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.17, < 6.1.167 >= 6.2, < 6.6.130 >= 6.7, < 6.12.78 >= 6.13, < 6.18.19 >= 6.19, < 6.19.9 7.0 rc1 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 21, 2026 | Reanalysis | [email protected] |
| May 21, 2026 | Initial Analysis | [email protected] |
| May 9, 2026 | CVE Modified | kernel.org |
| May 8, 2026 | New CVE Received | kernel.org |