SB20250226257 - Use-after-free in Linux kernel scsi ibmvscsi driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226257
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2022-49701)
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.
Remediation
Install update from vendor's website.