CVE-2025-39858
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedSep 19, 2025
First seenSep 19, 2025
Weakness typeCWE-476NULL pointer dereference
How to fix
Update
- linux linux_kernel6.16.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.15 ≤ v < 6.16.6, 6.17 | 6.16.6 |
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