CVE-2026-46108: ipmi:si: Return state to normal if message allocation fails
In the Linux kernel, the following vulnerability has been resolved:
ipmi:si: Return state to normal if message allocation fails
There were places where nothing would get started if a message
allocation failed, so the driver needs to return to normal state.
Security readout for executives and security teams
Plain-English summary
This Linux kernel issue affects the IPMI system-interface driver. If an internal message allocation fails, the driver may not return to a normal state, potentially disrupting IPMI management behavior. Public severity, CVSS, and exploitation evidence are not provided in the source bundle.
Executive priority
Track through normal kernel patch management, with higher priority for server fleets that depend on IPMI for remote management or recovery. Current public evidence is insufficient to justify emergency action solely from this bundle.
Technical view
CVE-2026-46108 is a Linux kernel IPMI SI driver state-handling bug. The fix returns the driver state to normal after message allocation failure paths where no further work would start. The bundle lists Linux kernel as affected and references multiple stable kernel commits.
Likely exposure
Exposure is most likely on Linux servers or appliances using the kernel IPMI SI driver for BMC or hardware management. The bundle does not provide precise distro package status, configured-driver requirements, or affected version range clarity beyond Linux kernel references.
Exploitation context
The source bundle does not show KEV listing, public exploitation, exploitability details, attack vector, privileges, or user interaction. Treat active exploitation as unproven. The described impact appears operational: a failed allocation can leave IPMI driver state abnormal.
Researcher notes
The useful research focus is impact characterization: what driver state remains abnormal, whether failure is attacker-influenceable, and what user-visible IPMI functions stop. The bundle provides fix commits but no CVSS, CWE, exploit status, or distribution-specific remediation matrix.
Mitigation direction
Apply vendor-supported Linux kernel updates containing the referenced stable fixes.
Prioritize systems where IPMI/BMC management availability is operationally important.
Check Linux distribution advisories for fixed package versions.
If immediate patching is unavailable, monitor vendor guidance for supported mitigations.
Validation and detection
Inventory Linux hosts and identify kernels using the IPMI SI driver.
Map installed kernel packages to vendor advisories or referenced stable commits.
Review change control for servers dependent on IPMI management workflows.
Confirm updated kernels are booted, not merely installed.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
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CVE-2026-46108 mapping review
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These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
0CVSS vectors
3Timeline events
0ADP providers
9Source links
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
CVE publishedCVE Program
The CVE record was published.
May 28, 2026, 09:35 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.