NULL pointer dereference in Linux kernel hw irdma driver

1) NULL pointer dereference

EUVDB-ID: #VU91456

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-2023-52744

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

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 irdma_add_mqh_4() function in drivers/infiniband/hw/irdma/cm.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

External links

http://git.kernel.org/stable/c/8f5fe1cd8e6a97f94840b55f59ed08cbc397086f
http://git.kernel.org/stable/c/360682fe7df262d94fae54f737c487bec0f9190d
http://git.kernel.org/stable/c/5d9745cead1f121974322b94ceadfb4d1e67960e

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.