CVE-2025-39858 Details
Description
In the Linux kernel, the following vulnerability has been resolved: eth: mlx4: Fix IS_ERR() vs NULL check bug in mlx4_en_create_rx_ring Replace NULL check with IS_ERR() check after calling page_pool_create() since this function returns error pointers (ERR_PTR). Using NULL check could lead to invalid pointer dereference.
A vulnerability in the Linux kernel's mlx4 Ethernet driver can lead to a NULL pointer dereference. This issue arises in the 'mlx4_en_create_rx_ring' function, where a NULL check was improperly used after calling 'page_pool_create()'. The 'page_pool_create()' function can return error pointers, and the NULL check could result in an invalid pointer dereference. This 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.
CISA-ADP
Assessed Jan 14, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/7b77d8841a98a9f45c8a615222c698df8dec581c | kernel.org | Patch |
| https://git.kernel.org/stable/c/e580beaf43d563aaf457f1c7f934002355ebfe7b | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
| CWE-476 | NULL Pointer Dereference | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.15, < 6.16.6 6.17 rc1 6.17 rc2 6.17 rc3 6.17 rc4 |
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 |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jan 14, 2026 | CVE Modified | CISA-ADP |
| Dec 12, 2025 | Initial Analysis | [email protected] |
| Sep 19, 2025 | New CVE Received | kernel.org |