Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: IB/core: Implement a limit on UMAD receive List The existing behavior of ib_umad, which maintains received MAD packets in an unbounded list, poses a risk of uncontrolled growth. As user-space applications extract packets from this list, the rate of extraction may not match the rate of incoming packets, leading to potential list overflow. To address this, we introduce a limit to the size of the list. After considering typical scenarios, such as OpenSM processing, which can handle approximately 100k packets per second, and the 1-second retry timeout for most packets, we set the list size limit to 200k. Packets received beyond this limit are dropped, assuming they are likely timed out by the time they are handled by user-space. Notably, packets queued on the receive list due to reasons like timed-out sends are preserved even when the list is full.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.19.318 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/1288cf1cceb0e6df276e182f5412370fb4169bcbPatch
- https://git.kernel.org/stable/c/62349fbf86b5e13b02721bdadf98c29afd1e7b5fPatch
- https://git.kernel.org/stable/c/63d202d948bb6d3a28cd8e8b96b160fa53e18baaPatch
- https://git.kernel.org/stable/c/a6627fba793cc75b7365d9504a0095fb2902dda4Patch
- https://git.kernel.org/stable/c/b4913702419d064ec4c4bbf7270643c95cc89a1bPatch
- https://git.kernel.org/stable/c/b8c5f635997f49c625178d1a0cb32a80ed33abe6Patch
- https://git.kernel.org/stable/c/ca0b44e20a6f3032224599f02e7c8fb49525c894Patch
- https://git.kernel.org/stable/c/d73cb8862e4d6760ccc94d3b57b9ef6271400607Patch
- https://git.kernel.org/stable/c/1288cf1cceb0e6df276e182f5412370fb4169bcbPatch
- https://git.kernel.org/stable/c/62349fbf86b5e13b02721bdadf98c29afd1e7b5fPatch
- https://git.kernel.org/stable/c/63d202d948bb6d3a28cd8e8b96b160fa53e18baaPatch
- https://git.kernel.org/stable/c/a6627fba793cc75b7365d9504a0095fb2902dda4Patch
- https://git.kernel.org/stable/c/b4913702419d064ec4c4bbf7270643c95cc89a1bPatch
- https://git.kernel.org/stable/c/b8c5f635997f49c625178d1a0cb32a80ed33abe6Patch
- https://git.kernel.org/stable/c/ca0b44e20a6f3032224599f02e7c8fb49525c894Patch
FAQ
What is CVE-2024-42145?
CVE-2024-42145 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: IB/core: Implement a limit on UMAD receive List The existing behavior of ib_umad, which maintains received MAD packets in an unbou...
How severe is CVE-2024-42145?
CVE-2024-42145 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-2024-42145?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.