NULL pointer dereference in Linux kernel scsi hisi_sas driver

1) NULL pointer dereference

EUVDB-ID: #VU90420

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-2023-52808

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 debugfs_bist_init_v3_hw() and debugfs_init_v3_hw() functions in drivers/scsi/hisi_sas/hisi_sas_v3_hw.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

External links

http://git.kernel.org/stable/c/f0bfc8a5561fb0b2c48183dcbfe00bdd6d973bd3
http://git.kernel.org/stable/c/33331b265aac9441ac0c1a5442e3f05d038240ec
http://git.kernel.org/stable/c/75a2656260fe8c7eeabda6ff4600b29e183f48db
http://git.kernel.org/stable/c/b4465009e7d60c6111946db4c8f1e50d401ed7be
http://git.kernel.org/stable/c/6de426f9276c448e2db7238911c97fb157cb23be

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.