#VU104375 Memory leak in Linux kernel - CVE-2022-49121

Vulnerability identifier: #VU104375

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-49121

CWE-ID: CWE-401

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 memory leak within the pm80xx_chip_phy_ctl_req() function in drivers/scsi/pm8001/pm80xx_hwi.c, within the pm8001_exec_internal_task_abort() function in drivers/scsi/pm8001/pm8001_sas.c, within the pm8001_chip_reg_dev_req(), pm8001_chip_fw_flash_update_req() and pm8001_chip_set_dev_state_req() functions in drivers/scsi/pm8001/pm8001_hwi.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

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External links
https://git.kernel.org/stable/c/43c617eefab7077d69f5989ad3e2a273da1d728b
https://git.kernel.org/stable/c/4c8f04b1905cd4b776d0b720463c091545478ef7
https://git.kernel.org/stable/c/9cc72bcc1c096ed42c91646f130d4b4191580a4c
https://git.kernel.org/stable/c/a0bb65eadbf942024226241d9d99fed17168940b
https://git.kernel.org/stable/c/bdc74815f1c39905054b7d47399e0260b201b14d

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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.