Vulnerability identifier: #VU92908

Vulnerability risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-48728

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the hfi1_ipoib_netdev_dtor() and hfi1_ipoib_setup_rn() functions in drivers/infiniband/hw/hfi1/ipoib_main.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel:

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External links
http://git.kernel.org/stable/c/4a9bd1e6780fc59f81466ec3489d5ad535a37190
http://git.kernel.org/stable/c/a3dd4d2682f2a796121609e5f3bbeb1243198c53
http://git.kernel.org/stable/c/1899c3cad265c4583658aed5293d02e8af84276b
http://git.kernel.org/stable/c/5f8f55b92edd621f056bdf09e572092849fabd83

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.