SB2026092855 - Memory leak in Linux kernel scsi mpi3mr driver

Description

This security bulletin contains information about 1 vulnerability.

1) Memory leak (CVE-ID: CVE-2026-98128)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a missing reference release in mpi3mr_sas_port_add() when handling an error after acquiring a target device reference. A local user can trigger the error path after a target device reference is acquired to cause a denial of service.

The target device reference is acquired only for SAS_END_DEVICE types.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/040146f81d099006a354b0caacc7f01ca00f257e
• https://git.kernel.org/stable/c/06a7073b33b8f5cb0ee71e07dc669efffb1c7d58
• https://git.kernel.org/stable/c/1ccbe8c42009706af79e6629c70d42fc929aef2b
• https://git.kernel.org/stable/c/419d129f970aaa6567dbac366b0c93784bf9ec97