CVE-2024-41073: nvme: avoid double free special payload
In the Linux kernel, the following vulnerability has been resolved:
nvme: avoid double free special payload
If a discard request needs to be retried, and that retry may fail before
a new special payload is added, a double free will result. Clear the
RQF_SPECIAL_LOAD when the request is cleaned.
Security readout for executives and security teams
Plain-English summary
A Linux NVMe storage error-handling flaw can free the same request payload twice when a discard operation is retried and fails early. This memory corruption could crash a system and may have broader security consequences. Actual exposure depends on the running kernel, NVMe use, and reaching this specific failure path.
Executive priority
Treat as an urgent kernel patching issue for exposed NVMe systems, especially availability-critical infrastructure. Prioritize inventory and vendor-supported updates, but do not infer internet-wide remote compromise from the 9.8 score alone. No active exploitation evidence is supplied.
Technical view
During cleanup of a retried NVMe discard request, the kernel failed to clear RQF_SPECIAL_LOAD. If the retry failed before attaching a replacement special payload, later cleanup could free the previous payload again. The upstream correction clears that flag during request cleanup. The supplied CVSS is 9.8, although the description alone does not establish practical remote reachability.
Likely exposure
Potentially affected Linux systems are those running vulnerable kernel branches and exercising NVMe discard requests under retry and early-failure conditions. The supplied version list is ambiguous when flattened, so determine exposure using distribution advisories, kernel package changelogs, or inclusion of the referenced stable fix—not version numbers alone.
Exploitation context
The bundle does not report known active exploitation, and the CVE is not listed as KEV. It provides no public exploit evidence. Triggering requires the described NVMe discard retry and failure sequence; whether an untrusted remote party can cause that sequence is not established by the supplied sources.
Researcher notes
The affected mechanism is a double free in NVMe request cleanup involving RQF_SPECIAL_LOAD. Stable-tree commits and Debian advisories indicate backported remediation. The supplied AV:N vector appears difficult to reconcile with the described storage-path precondition; researchers should avoid asserting remote exploitability without additional evidence. Impact beyond memory corruption or denial of service is not demonstrated here.
Mitigation direction
Install a vendor-supported kernel containing the referenced NVMe fix.
Apply the relevant Debian security update where the cited Debian advisories govern the system.
Prioritize storage hosts where NVMe discard operations and reliability failures are plausible.
Check current Linux distribution guidance before adopting temporary mitigations.
Validation and detection
Record each system's running kernel release and package build.
Verify the installed kernel includes the stable fix or vendor backport.
Identify systems using NVMe storage and discard functionality.
Confirm patched kernels are running after maintenance or reboot.
Review vendor advisories because the supplied version list lacks clear range boundaries.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
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CVE-2024-41073 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.
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.