Use-after-free in Linux kernel - CVE-2022-49701
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104440
CSH Severity: Low
CVSS v4.0: 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-2022-49701
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability 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 ibmvfc_npiv_logout(), ibmvfc_reenable_crq_queue(), ibmvfc_reset_crq(), ibmvfc_register_scsi_channel(), plpar_hcall_norets(), ibmvfc_deregister_scsi_channel() and ibmvfc_init_sub_crqs() functions in drivers/scsi/ibmvscsi/ibmvfc.c. A local user can escalate privileges on the system.
How to mitigate CVE-2022-49701
Install update from vendor's website.