Bug 2541380 (CVE-2026-98129)

Summary: CVE-2026-98129 kernel: scsi: mpi3mr: Fix NULL pointer dereference in mpi3mr_sas_port_add()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: akhatavk, aos-team-art-private, asdas, dpaolell, jdelft, jupierce, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, rhel-process-autobot, sghai, sidsharm, suppawar, vlaad, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in the Linux kernel's mpi3mr SCSI driver. The driver fails to validate the return value of a memory allocation when adding a Serial Attached SCSI (SAS) port, leading to a NULL pointer dereference if the allocation fails. A local user could exploit this flaw under low-memory conditions to cause a kernel crash, resulting in a Denial of Service (DoS).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2026-09-25 11:38:16 UTC 
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.
Comment 1 Keith Grant 2026-09-28 14:04:29 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98129.mbox