CVE-2022-48966: net: mvneta: Prevent out of bounds read in mvneta_config_rss()
First published: Mon Oct 21 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: net: mvneta: Prevent out of bounds read in mvneta_config_rss() The pp->indir[0] value comes from the user. It is passed to: if (cpu_online(pp->rxq_def)) inside the mvneta_percpu_elect() function. It needs bounds checkeding to ensure that it is not beyond the end of the cpu bitmap.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | >=4.5<4.9.336 | |
| Linux kernel | >=4.10<4.14.302 | |
| Linux kernel | >=4.15<4.19.269 | |
| Linux kernel | >=4.20<5.4.227 | |
| Linux kernel | >=5.5<5.10.159 | |
| Linux kernel | >=5.11<5.15.83 | |
| Linux kernel | >=5.16<6.0.13 | |
| Linux kernel | =6.1-rc1 | |
| Linux kernel | =6.1-rc2 | |
| Linux kernel | =6.1-rc3 | |
| Linux kernel | =6.1-rc4 | |
| Linux kernel | =6.1-rc5 | |
| Linux kernel | =6.1-rc6 | |
| Linux kernel | =6.1-rc7 | |
| Linux kernel | =6.1-rc8 |
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Reference Links
- https://git.kernel.org/stable/c/3ceffb8f410b93553fb16fe7e84aa0d35b3ba79b
- https://git.kernel.org/stable/c/47a1a2f6cd5ec3a4f8a2d9bfa1e0605347cdb92c
- https://git.kernel.org/stable/c/5a142486a0db6b0b85031f22d69acd0cdcf8f72b
- https://git.kernel.org/stable/c/eec1fc21edc2bb99c9e66cf66f0b5d4d643fbb50
- https://git.kernel.org/stable/c/146ebee8fcdb349d7ec0e49915e6cdafb92544ae
- https://git.kernel.org/stable/c/a6b30598fec84f8809f5417cde73071ca43e8471
- https://git.kernel.org/stable/c/6ca0a506dddc3e1d636935eef339576b263bf3d8
- https://git.kernel.org/stable/c/e8b4fc13900b8e8be48debffd0dfd391772501f7
Frequently Asked Questions
What is the severity of CVE-2022-48966?
CVE-2022-48966 is considered to be a high severity vulnerability due to its potential to cause out-of-bounds reads in the Linux kernel.
How do I fix CVE-2022-48966?
To fix CVE-2022-48966, upgrade your Linux kernel to a version that is patched for this vulnerability.
What systems are affected by CVE-2022-48966?
CVE-2022-48966 affects various versions of the Linux kernel from 4.5 to 6.1-rc8.
What type of vulnerability is CVE-2022-48966?
CVE-2022-48966 is an out-of-bounds read vulnerability in the network driver component of the Linux kernel.
Can CVE-2022-48966 be exploited remotely?
Yes, CVE-2022-48966 can potentially be exploited remotely if user input is improperly validated.
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