#VU94420 Use-after-free in Linux kernel - CVE-2022-48792

Vulnerability identifier: #VU94420

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-48792

CWE-ID: CWE-416

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 escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the mpi_ssp_completion() and mpi_sata_completion() functions in drivers/scsi/pm8001/pm80xx_hwi.c. A local user can escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

---

External links
https://git.kernel.org/stable/c/fe9ac3eaa2e387a5742b380b73a5a6bc237bf184
https://git.kernel.org/stable/c/d9d93f32534a0a80a1c26bdb0746d90a7b19c2c2
https://git.kernel.org/stable/c/f61f9fccb2cb4bb275674a79d638704db6bc2171
https://git.kernel.org/stable/c/df7abcaa1246e2537ab4016077b5443bb3c09378

---

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.