CVE-2024-42145
MediumIn 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 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness type
CWE-770CVE-2024-42145 is classified as CWE-770
See CWE-770 on MITRE CWE for full details on this weakness type.
References
The following references provide additional information about CVE-2024-42145 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/1288cf1cceb0e6df276e182f5412370fb4169bcb
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PatchKernel patch commithttps://git.kernel.org/stable/c/62349fbf86b5e13b02721bdadf98c29afd1e7b5f
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PatchKernel patch commithttps://git.kernel.org/stable/c/63d202d948bb6d3a28cd8e8b96b160fa53e18baa
Frequently asked questions
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What is CVE-2024-42145?
CVE-2024-42145 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2024-42145 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2024-42145?
CVE-2024-42145 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2024-42145?
No patch is currently available for CVE-2024-42145. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2024-42145 actively exploited?
No — CVE-2024-42145 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.