CVE-2024-56756
mediumpriority · track · 22EPSS 0.002 · 12 %ileDEEURUUSEPSS · scored 2026-10-22
In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix freeing of the HMB descriptor table The HMB descriptor table is sized to the maximum number of descriptors that could be used for a given device, but __nvme_alloc_host_mem could break out of the loop earlier on memory allocation failure and end up using less descriptors than planned for, which leads to an incorrect size passed to dma_free_coherent. In practice this was not showing up because the number of descriptors tends to be low and the dma coherent allocator always allocates and frees at least a page.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedRUGGEDCOM RST2428P (6GK6242-6PA00)siemens_psirt
Update to V3.2 or later version
https://support.industry.siemens.com/cs/ww/en/view/109988839/ - FixedSCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 familysiemens_psirt
See Section Additional Information.
- FixedSCALANCE XCM-/XRM-/XCH-/XRH-300 familysiemens_psirt
Update to V3.2 or later version
https://support.industry.siemens.com/cs/ww/en/view/109988839/ - FixedRUGGEDCOM RST2428P (6GK6242-6PA00)cisa_csaf_ot
Update to V3.2 or later version
https://support.industry.siemens.com/cs/ww/en/view/109988839/ - FixedSCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 familycisa_csaf_ot
See Section Additional Information.
- FixedSCALANCE XCM-/XRM-/XCH-/XRH-300 familycisa_csaf_ot
Update to V3.2 or later version
https://support.industry.siemens.com/cs/ww/en/view/109988839/
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (85)
Products and version ranges known to be affected.
advisories (3)
Vendor and ecosystem advisories describing this.
- SSA-355557SSA-355557: Multiple Vulnerabilities in Third-Party Components in SINEC OS before V3.22025-08-12csaf · siemens_psirtDE
SINEC OS before V3.2 contains third-party components with multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.
- WID-SEC-W-2024-3762Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2024-12-29csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen und um nicht näher beschriebene Effekte zu erzielen.
- ICSA-25-226-07Siemens Third-Party Components in SINEC OS2025-08-12icsa · cisa_csaf_otUS
SINEC OS before V3.2 contains third-party components with multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (26)
External citations — patches, advisories, analysis.
- https://git.kernel.org/stable/c/3c2fb1ca8086eb139b2a551358137525ae8e0d7acnnvd
- https://git.kernel.org/stable/c/452f9ddd12bebc04cef741e8ba3806bf0e1fd015cnnvd
- https://git.kernel.org/stable/c/582d9ed999b004fb1d415ecbfa86d4d8df455269cnnvd
- https://git.kernel.org/stable/c/6d0f599db73b099aa724a12736369c4d4d92849dcnnvd
- https://git.kernel.org/stable/c/869cf50b9c9d1059f5223f79ef68fc0bc6210095cnnvd
- https://git.kernel.org/stable/c/ac22240540e0c5230d8c4138e3778420b712716acnnvd
- https://git.kernel.org/stable/c/cee3bff51a35cab1c5d842d409a7b11caefe2386cnnvd
- https://git.kernel.org/stable/c/fb96d5cfa97a7363245b3dd523f475b04296d87bcnnvd
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