CVE-2025-22004 net: atm: fix use after free in lec_send()
A use-after-free vulnerability in the Linux kernel's ATM module allows attackers to potentially execute code or cause a system crash.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-22004?
CVE-2025-22004 is a high-severity use after free vulnerability in Linux kernel, published on 3 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
net: atm: fix use after free in lec_send()
The ->send() operation frees skb so save the length before calling ->send() to avoid a use after free.
Weakness: CWE-416
Which versions are affected by CVE-2025-22004?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-22004?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2025-22004 being exploited?
There is no known exploitation of CVE-2025-22004 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-59629, AZL-59658, BELL-CVE-2025-22004, DEBIAN-CVE-2025-22004, GHSA-fmvx-5hvp-q7fh, ROOT-OS-UBUNTU-2404-CVE-2025-22004 and 1 more.