CVE-2024-43856 (GCVE-0-2024-43856)
Vulnerability from cvelistv5
Published
2024-08-17 09:24
Modified
2025-11-03 22:05
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: dma: fix call order in dmam_free_coherent dmam_free_coherent() frees a DMA allocation, which makes the freed vaddr available for reuse, then calls devres_destroy() to remove and free the data structure used to track the DMA allocation. Between the two calls, it is possible for a concurrent task to make an allocation with the same vaddr and add it to the devres list. If this happens, there will be two entries in the devres list with the same vaddr and devres_destroy() can free the wrong entry, triggering the WARN_ON() in dmam_match. Fix by destroying the devres entry before freeing the DMA allocation. kokonut //net/encryption http://sponge2/b9145fe6-0f72-4325-ac2f-a84d81075b03
References
Impacted products
Vendor Product Version
Linux Linux Version: 9ac7849e35f705830f7b016ff272b0ff1f7ff759
Version: 9ac7849e35f705830f7b016ff272b0ff1f7ff759
Version: 9ac7849e35f705830f7b016ff272b0ff1f7ff759
Version: 9ac7849e35f705830f7b016ff272b0ff1f7ff759
Version: 9ac7849e35f705830f7b016ff272b0ff1f7ff759
Version: 9ac7849e35f705830f7b016ff272b0ff1f7ff759
Version: 9ac7849e35f705830f7b016ff272b0ff1f7ff759
Version: 9ac7849e35f705830f7b016ff272b0ff1f7ff759
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