Vulnerability Description
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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.2, < 6.6.36 |
References
- https://git.kernel.org/stable/c/163868ec1f6c610d16da9e458fe1dd7d5de97341Patch
- https://git.kernel.org/stable/c/943c94f41dfe36536dc9aaa12c9efdf548ceb996Patch
- https://git.kernel.org/stable/c/f67ac0061c7614c1548963d3ef1ee1606efd8636Patch
- https://git.kernel.org/stable/c/163868ec1f6c610d16da9e458fe1dd7d5de97341Patch
- https://git.kernel.org/stable/c/943c94f41dfe36536dc9aaa12c9efdf548ceb996Patch
- https://git.kernel.org/stable/c/f67ac0061c7614c1548963d3ef1ee1606efd8636Patch
FAQ
What is CVE-2024-40992?
CVE-2024-40992 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 detec...
How severe is CVE-2024-40992?
CVE-2024-40992 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-40992?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.