CVE-2026-98129: scsi: mpi3mr: Fix NULL pointer dereference in mpi3mr_sas_port_add()

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-25 · updated 2026-10-22
Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix NULL pointer dereference in mpi3mr_sas_port_add() sas_port_alloc_num() can return NULL on memory allocation failure. The return value is passed directly to sas_port_add() without a NULL check, which causes a NULL pointer dereference. Additionally, if sas_port_add() fails, the allocated port is not freed before jumping to out_fail, leaking the sas_port structure. Call sas_port_free() to properly release it.

Affected products

Linux kernel: from 6.1 before 6.1.189; from 6.2 before 6.6.158; from 6.7 before 6.12.111; from 6.13 before 6.18.53; from 6.19 before 7.2.7; 7.3-rc1 — fixed in 6.1.189, 6.12.111, 6.18.53, 6.6.158, 7.2.7

How to fix

Upgrade to a fixed version: Linux kernel 6.1.189, 6.12.111, 6.18.53, 6.6.158. Check the vendor advisory for mitigations.

References

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