CVE-2024-42145

MEDIUM EPSS 15.9%
Published Jul 30, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jul 30, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
15.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-770

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel* <4.19.318
linuxlinux_kernel*≥4.20  –  <5.4.280
linuxlinux_kernel*≥5.5  –  <5.10.222
linuxlinux_kernel*≥5.11  –  <5.15.163
linuxlinux_kernel*≥5.16  –  <6.1.98
linuxlinux_kernel*≥6.2  –  <6.6.39
linuxlinux_kernel*≥6.7  –  <6.9.9

References 9

  • git.kernel.org https://git.kernel.org/stable/c/1288cf1cceb0e6df276e182f5412370fb4169bcb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/62349fbf86b5e13b02721bdadf98c29afd1e7b5f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/63d202d948bb6d3a28cd8e8b96b160fa53e18baa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a6627fba793cc75b7365d9504a0095fb2902dda4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b4913702419d064ec4c4bbf7270643c95cc89a1b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b8c5f635997f49c625178d1a0cb32a80ed33abe6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ca0b44e20a6f3032224599f02e7c8fb49525c894
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d73cb8862e4d6760ccc94d3b57b9ef6271400607
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1288cf1cceb0e6df276e182f5412370fb4169bcb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/62349fbf86b5e13b02721bdadf98c29afd1e7b5f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/63d202d948bb6d3a28cd8e8b96b160fa53e18baa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a6627fba793cc75b7365d9504a0095fb2902dda4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b4913702419d064ec4c4bbf7270643c95cc89a1b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b8c5f635997f49c625178d1a0cb32a80ed33abe6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ca0b44e20a6f3032224599f02e7c8fb49525c894
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d73cb8862e4d6760ccc94d3b57b9ef6271400607
    Patch