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CVE-2022-49500

wl1251: dynamically allocate memory used for DMA PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected a1c510d0adc604bb143c86052bc5be48cbcfa17c before da03bbfbf5acd1ab0b074617e865ad1e8a5779ef; affected a1c510d0adc604bb143c86052bc5be48cbcfa17c before 454744754cbf2c21b3fc7344e46e10bee2768094
Linux / Linuxaffected 5.18; unaffected 0 before 5.18; unaffected 5.18.3 through 5.18.*; unaffected 5.19 through *

CWE

No CWE identifiers supplied.

References