CVE-2026-43210 Details
Description
In the Linux kernel, the following vulnerability has been resolved: tracing: ring-buffer: Fix to check event length before using Check the event length before adding it for accessing next index in rb_read_data_buffer(). Since this function is used for validating possibly broken ring buffers, the length of the event could be broken. In that case, the new event (e + len) can point a wrong address. To avoid invalid memory access at boot, check whether the length of each event is in the possible range before using it.
A vulnerability in the Linux kernel's tracing ring buffer component has been addressed. The issue involved improper validation of event lengths before processing, which could lead to invalid memory access. This vulnerability was particularly problematic during system boot, as it could cause the kernel to read from incorrect memory addresses, potentially leading to crashes or other instability. The issue has been fixed by implementing checks to ensure that event lengths are within acceptable ranges before they are used.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been fixed. Instructions for downloading the patched version are available on the official Linux kernel website.
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
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/5026010110a5ad2268d8c23e1e286ab7c736f7ac | kernel.org | Patch |
| https://git.kernel.org/stable/c/912b0ee248c529a4f45d1e7f568dc1adddbf2a4a | kernel.org | Patch |
| https://git.kernel.org/stable/c/9eb80e54494ef1efef8a64bec4ffa672c9cf411e | kernel.org | Patch |
| https://git.kernel.org/stable/c/b4700c089a10f89de3a5149d57f8a58306458982 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.12, < 6.12.75 >= 6.13, < 6.18.16 >= 6.19, < 6.19.6 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 11, 2026 | Initial Analysis | [email protected] |
| May 6, 2026 | New CVE Received | kernel.org |