CVE-2024-40992
mediumpriority · track · 22EPSS 0.006 · 49 %ileDEEURUUSEPSS · scored 2026-10-27
In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix responder length checking for UD request packets According to the IBA specification: If a UD request packet is detected with an invalid length, the request shall be an invalid request and it shall be silently dropped by the responder. The responder then waits for a new request packet. commit 689c5421bfe0 ("RDMA/rxe: Fix incorrect responder length checking") defers responder length check for UD QPs in function `copy_data`. But it introduces a regression issue for UD QPs. When the packet size is too large to fit in the receive buffer. `copy_data` will return error code -EINVAL. Then `send_data_in` will return RESPST_ERR_MALFORMED_WQE. UD QP will transfer into ERROR state.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.7–7.5
ssvc
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weaknesses
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affected products (64)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2024-1607Linux Kernel: Mehrere SchwachstellenDeutsch2024-07-14csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um seine Privilegien zu erweitern, einen Denial-of-Service-Zustand zu erzeugen, vertrauliche Informationen offenzulegen oder einen unspezifischen Angriff durchzuführen.
also known as (4)
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sources
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references (11)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2024-40992/cnnvd
- https://git.kernel.org/stable/c/163868ec1f6c610d16da9e458fe1dd7d5de97341cnnvd
- https://git.kernel.org/stable/c/943c94f41dfe36536dc9aaa12c9efdf548ceb996cnnvd
- https://git.kernel.org/stable/c/f67ac0061c7614c1548963d3ef1ee1606efd8636cnnvd
- https://vigilance.fr/vulnerability/Linux-kernel-multiple-vulnerabilities-dated-15-07-2024-44742cnnvd
- https://git.kernel.org/stable/c/163868ec1f6c610d16da9e458fe1dd7d5de97341enisa_euvd
- https://git.kernel.org/stable/c/943c94f41dfe36536dc9aaa12c9efdf548ceb996enisa_euvd
- https://git.kernel.org/stable/c/f67ac0061c7614c1548963d3ef1ee1606efd8636enisa_euvd
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