CVE-2025-39858 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer Dereference5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 94.52%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedSep 19
Latest updateSep 22

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶NVDlinux/linux_kernel6.15 — 6.16.6+1
▶Debianlinux/linux_kernel< 6.16.6-1
▶CVEListV5linux/linux8533b14b3d65ee666ba31254787c1bdaee56d95a — 7b77d8841a98a9f45c8a615222c698df8dec581c+2
▶debiandebian/linux< linux 6.16.6-1 (forky)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-x732-54q6-pv67: 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↗2025-09-22
▶
OSV
CVE-2025-39858: 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 c↗2025-09-19
▶

📋Vendor Advisories

2
Red Hat
kernel: eth: mlx4: Fix IS_ERR() vs NULL check bug in mlx4_en_create_rx_ring↗2025-09-19
▶
Debian
CVE-2025-39858: linux - In the Linux kernel, the following vulnerability has been resolved: eth: mlx4: ...↗2025
▶
CVE-2025-39858 — NULL Pointer Dereference in Linux | cvebase