In the Linux kernel, the following vulnerability has been resolved:
wl1251: dynamically allocate memory used for DMA
With introduction of vmap'ed stacks, stack parameters can no
longer be used for DMA and now leads to kernel panic.
It happens at several places for the wl1251 (e.g. when
accessed through SDIO) making it unuseable on e.g. the
OpenPandora.
We solve this by allocating temporary buffers or use wl1251_read32().
Tested on v5.18-rc5 with OpenPandora.
Metrics
Affected Vendors & Products
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History
Thu, 27 Feb 2025 01:45:00 +0000
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cvssV3_1
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Wed, 26 Feb 2025 02:45:00 +0000
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Description | In the Linux kernel, the following vulnerability has been resolved: wl1251: dynamically allocate memory used for DMA With introduction of vmap'ed stacks, stack parameters can no longer be used for DMA and now leads to kernel panic. It happens at several places for the wl1251 (e.g. when accessed through SDIO) making it unuseable on e.g. the OpenPandora. We solve this by allocating temporary buffers or use wl1251_read32(). Tested on v5.18-rc5 with OpenPandora. | |
Title | wl1251: dynamically allocate memory used for DMA | |
References |
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Status: PUBLISHED
Assigner: Linux
Published: 2025-02-26T02:13:34.223Z
Updated: 2025-05-04T08:39:16.013Z
Reserved: 2025-02-26T02:08:31.586Z
Link: CVE-2022-49500

No data.

Status : Received
Published: 2025-02-26T07:01:26.163
Modified: 2025-02-26T07:01:26.163
Link: CVE-2022-49500
