CVE-2026-43440 Details
Description
In the Linux kernel, the following vulnerability has been resolved: net/mana: Null service_wq on setup error to prevent double destroy In mana_gd_setup() error path, set gc->service_wq to NULL after destroy_workqueue() to match the cleanup in mana_gd_cleanup(). This prevents a use-after-free if the workqueue pointer is checked after a failed setup.
A use-after-free vulnerability has been addressed in the Linux kernel's net/mana component. This issue arose because the workqueue pointer was not properly nullified after an error during setup, leading to a potential double free. The vulnerability affects the Linux kernel stable tree.
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/59489ce60d7412ed82fb1d8002faa3102dcd4916 | kernel.org | Patch |
| https://git.kernel.org/stable/c/6c92392602b451e3869f15ab685f8f650e942b13 | kernel.org | Patch |
| https://git.kernel.org/stable/c/87c2302813abc55c46485711a678e3c312b00666 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.18.16, < 6.18.19 >= 6.19.6, < 6.19.9 7.0 rc2 7.0 rc3 |
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 21, 2026 | Initial Analysis | [email protected] |
| May 8, 2026 | New CVE Received | kernel.org |