Bug 2297570 (CVE-2024-40986)

Summary: CVE-2024-40986 kernel: dmaengine: xilinx: xdma: Fix data synchronisation in xdma_channel_isr()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: kernel 6.9.7, kernel 6.10-rc5 Doc Type: If docs needed, set a value
Doc Text:
A vulnerability was found in dmaengine in the Linux kernel. This issue was resolved by fixing data synchronization in the `xdma_channel_isr()` function. The update ensures the vchan lock is acquired before accessing `xdma->stop_request`, preventing race conditions during interrupt handling in XDMA channels.
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Description OSIDB Bzimport 2024-07-12 13:46:43 UTC 
In the Linux kernel, the following vulnerability has been resolved:

dmaengine: xilinx: xdma: Fix data synchronisation in xdma_channel_isr()

Requests the vchan lock before using xdma->stop_request.