Security readout for executives and security teams
Plain-English summary
This is a Linux kernel memory allocation bug in the OMAP crypto driver. A local, low-privileged user could potentially corrupt memory and affect confidentiality, integrity, and availability. It is high severity, but the source bundle does not show active exploitation or remote attack exposure.
Executive priority
Prioritize patch validation for embedded, industrial, and multi-user Linux systems that may include OMAP crypto support. Treat as high severity where the driver is present; otherwise confirm non-exposure rather than assuming fleet-wide impact.
Technical view
omap_crypto_copy_sg_lists() allocated an array sized for scatterlist pointers instead of scatterlist objects, making the allocation too small. The Linux fix changes allocation sizing to sizeof(*new_sg). CVSS 3.1 is 7.8 with local access, low complexity, low privileges, no user interaction, and high CIA impact.
Likely exposure
Exposure is most likely on Linux systems with affected kernels where the OMAP crypto driver is present and reachable. General-purpose servers without this driver or hardware path may not be exposed. Downstream vendor kernels need separate confirmation against the referenced stable commits or advisories.
Exploitation context
The CVE is not listed as KEV in the supplied bundle, and no cited source states active exploitation. The attack vector is local with low privileges, so risk is higher on multi-user systems, embedded devices, or appliances where untrusted users or workloads can reach kernel crypto paths.
Researcher notes
The evidence supports a kernel heap under-allocation in OMAP crypto scatterlist handling. The bundle provides fix commits and CVSS, but not a public proof of concept, exploitation evidence, or detailed product matrix beyond Linux and Siemens advisory references.
Mitigation direction
- Update affected Linux kernels to versions containing the referenced stable fixes.
- Check distribution or device vendor advisories for backported fixes.
- Review Siemens SSA-253495 if Siemens products are in scope.
- Restrict local shell or workload access on exposed embedded systems.
- Disable unused OMAP crypto driver paths where vendor guidance supports it.
Validation and detection
- Inventory kernel versions and downstream vendor patch levels.
- Confirm whether the OMAP crypto driver is built, loaded, or reachable.
- Compare deployed kernels against the referenced stable commit fixes.
- Check vendor advisories for product-specific affected status.
- Document compensating controls where immediate patching is not possible.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2026-23222 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9LinuxVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/953c81941b0ad373674656b8767c00234ebf17acCVE reference, Linux
- https://git.kernel.org/stable/c/31aff96a41ae6f1f1687c065607875a27c364da8CVE reference, Linux
- https://git.kernel.org/stable/c/79f95b51d4278044013672c27519ae88d07013d8CVE reference, Linux
- https://git.kernel.org/stable/c/6edf8df4bd29f7bfd245b67b2c31d905f1cfc14bCVE reference, Linux
- https://git.kernel.org/stable/c/c184341920ed78b6466360ed7b45b8922586c38fCVE reference, Linux
- https://git.kernel.org/stable/c/2ed27b5a1174351148c3adbfc0cd86d54072ba2eCVE reference, Linux
- https://git.kernel.org/stable/c/d1836c628cb72734eb5f7dfd4c996a9c18bba3adCVE reference, Linux
- https://git.kernel.org/stable/c/1562b1fb7e17c1b3addb15e125c718b2be7f5512CVE reference, Linux
- https://cert-portal.siemens.com/productcert/html/ssa-253495.htmlCVE reference, siemens-SADP
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.