SB20250226273 - Use-after-free in Linux kernel scsi lpfc driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226273
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-2022-49535)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the lpfc_initial_flogi(), lpfc_initial_fdisc(), lpfc_cmpl_els_plogi(), lpfc_cmpl_els_prli() and lpfc_cmpl_els_adisc() functions in drivers/scsi/lpfc/lpfc_els.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/10663ebec0ad5c78493a0dd34c9ee4d73d7ca0df
- https://git.kernel.org/stable/c/577a942df3de2666f6947bdd3a5c9e8d30073424
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.181
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19