CVE-2025-38479: dmaengine: fsl-edma: free irq correctly in remove path
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: fsl-edma: free irq correctly in remove path
Add fsledma->txirq/errirq check to avoid below warning because no errirq at i.MX9 platform. Otherwise there will be kernel dump: WARNING: CPU: 0 PID: 11 at kernel/irq/devres.c:144 devmfreeirq+0x74/0x80 Modules linked in: CPU: 0 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.12.0-rc7#18 Hardware name: NXP i.MX93 11X11 EVK board (DT) Workqueue: eventsunbound deferredprobeworkfunc pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : devmfreeirq+0x74/0x80 lr : devmfreeirq+0x48/0x80 Call trace: devmfreeirq+0x74/0x80 (P) devmfreeirq+0x48/0x80 (L) fsledmaremove+0xc4/0xc8 platformremove+0x28/0x44 deviceremove+0x4c/0x80
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-38479?
The severity of CVE-2025-38479 is categorized as medium due to potential kernel crashes on affected systems.
How do I fix CVE-2025-38479?
To fix CVE-2025-38479, update to the latest version of the Linux kernel where the vulnerability has been patched.
What systems are affected by CVE-2025-38479?
CVE-2025-38479 affects the Linux kernel, particularly systems using the fsl-edma driver on i.MX9 platforms.
What is the impact of CVE-2025-38479?
The impact of CVE-2025-38479 includes potential kernel dumps and system instability when the errirq is not correctly handled.
Is there a known exploit for CVE-2025-38479?
As of now, there are no known public exploits for CVE-2025-38479, but it is advisable to mitigate the risk by applying patches.