CVE-2022-49263 brcmfmac: pcie: Release firmwares in the brcmf_pcie_setup error path
A memory leak in the brcmfmac PCIe driver error path can lead to resource exhaustion and 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-2022-49263?
CVE-2022-49263 is a medium-severity denial of service vulnerability in Linux kernel, published on 26 Feb 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:
brcmfmac: pcie: Release firmwares in the brcmf_pcie_setup error path
This avoids leaking memory if brcmf_chip_get_raminfo fails. Note that the CLM blob is released in the device remove path.
Weakness: CWE-401
Which versions are affected by CVE-2022-49263?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-49263?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2022-49263 being exploited?
There is no known exploitation of CVE-2022-49263 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-49263, GHSA-72mw-qph4-cr4c, UBUNTU-CVE-2022-49263.