Bug 2360935 (CVE-2025-38479) - CVE-2025-38479 kernel: dmaengine: fsl-edma: free irq correctly in remove path
Summary: CVE-2025-38479 kernel: dmaengine: fsl-edma: free irq correctly in remove path
Keywords:
Status: NEW
Alias: CVE-2025-38479
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-04-18 08:01 UTC by OSIDB Bzimport
Modified: 2025-04-18 14:37 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2025-04-18 08:01:55 UTC 
In the Linux kernel, the following vulnerability has been resolved:

dmaengine: fsl-edma: free irq correctly in remove path

Add fsl_edma->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 devm_free_irq+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: events_unbound deferred_probe_work_func
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : devm_free_irq+0x74/0x80
lr : devm_free_irq+0x48/0x80
Call trace:
 devm_free_irq+0x74/0x80 (P)
 devm_free_irq+0x48/0x80 (L)
 fsl_edma_remove+0xc4/0xc8
 platform_remove+0x28/0x44
 device_remove+0x4c/0x80
Comment 1 Avinash Hanwate 2025-04-18 12:33:37 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025041818-CVE-2025-38479-4b98@gregkh/T
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