Executive Summary



This vulnerability is currently undergoing analysis and not all information is available. Please check back soon to view the completed vulnerability summary
Informations
Name CVE-2022-49320 First vendor Publication 2025-02-26
Vendor Cve Last vendor Modification 2025-02-26

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

dmaengine: zynqmp_dma: In struct zynqmp_dma_chan fix desc_size data type

In zynqmp_dma_alloc/free_chan_resources functions there is a potential overflow in the below expressions.

dma_alloc_coherent(chan->dev, (2 * chan->desc_size *
ZYNQMP_DMA_NUM_DESCS),
&chan->desc_pool_p, GFP_KERNEL);

dma_free_coherent(chan->dev,(2 * ZYNQMP_DMA_DESC_SIZE(chan) *
ZYNQMP_DMA_NUM_DESCS),
chan->desc_pool_v, chan->desc_pool_p);

The arguments desc_size and ZYNQMP_DMA_NUM_DESCS were 32 bit. Though this overflow condition is not observed but it is a potential problem in the case of 32-bit multiplication. Hence fix it by changing the desc_size data type to size_t.

In addition to coverity fix it also reuse ZYNQMP_DMA_DESC_SIZE macro in dma_alloc_coherent API argument.

Addresses-Coverity: Event overflow_before_widen.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-49320

Sources (Detail)

https://git.kernel.org/stable/c/4838969e4d95d2bd2995d1605b20d3144fcb3e74
https://git.kernel.org/stable/c/7b5488f4721fed6e121e661e165bab06ae2f8675
https://git.kernel.org/stable/c/83960276ffc9bf5570d4106490346b61e61be5f3
https://git.kernel.org/stable/c/90aefae2e3a770a6909d339f5d8a988c0b0ceaf0
https://git.kernel.org/stable/c/95a0ba85c1b51b36e909841c02d205cd223ab753
https://git.kernel.org/stable/c/f9a9f43a62a04ec3183fb0da9226c7706eed0115
Source Url

Alert History

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0
Date Informations
2025-02-26 17:20:32
  • First insertion