CVE-2025-37860 sfc: fix NULL dereferences in ef100_process_design_param()
A null pointer dereference in the sfc network driver can cause a kernel crash, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-37860?
CVE-2025-37860 is a medium-severity vulnerability in Linux kernel, published on 18 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
sfc: fix NULL dereferences in ef100_process_design_param()
Since cited commit, ef100_probe_main() and hence also ef100_check_design_params() run before efx->net_dev is created; consequently, we cannot netif_set_tso_max_size() or _segs() at this point. Move those netif calls to ef100_probe_netdev(), and also replace netif_err within the design params code with pci_err.
Weakness: CWE-476
Which versions are affected by CVE-2025-37860?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-37860?
Apply the vendor's patch.
Is CVE-2025-37860 being exploited?
There is no known exploitation of CVE-2025-37860 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-61484, BELL-CVE-2025-37860, DEBIAN-CVE-2025-37860, GHSA-j5qc-xcfm-cq6p, ROOT-OS-DEBIAN-12-CVE-2025-37860, ROOT-OS-DEBIAN-13-CVE-2025-37860 and 2 more.