CVE-2025-38479 [High] | Security Vulnerability in Linux Kernel

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

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-05-27	0.07%	0.03%	-0.03%
2	2026-02-12	0.02%	0.07%	+0.05%
3	2025-04-18	—	0.02%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-05-27

0.07%

0.03%

-0.03%

2026-02-12

0.02%

0.07%

+0.05%

2025-04-18

—

0.02%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.8	3.1	HIGH	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	1.8	5.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.8

3.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

1.8

5.9

[email protected]

OS Trackers for CVE-2025-38479

vendor	priority	summary	link
`debian`	unimportant	CVE-2025-38479 unimportant priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2025-38479
`redhat`	—	—	https://access.redhat.com/security/cve/CVE-2025-38479
`suse`	medium	CVE-2025-38479 severity moderate: SUSE including 52 source package names (cluster-md-kmp-default, dlm-kmp-default, …), 293 product×package rows across 52 product lines (SLES-LTSS-TERADATA 15 SP2, SUSE Linux Enterprise High Availability Extension 15 SP7, … (52 product lines)): Known Not Affected 267, Fixed 26.	https://www.suse.com/security/cve/CVE-2025-38479/
`ubuntu`	medium	CVE-2025-38479 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1550 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1144, ignored 147, not-affected 142, released 115, needs-triage 2.	https://ubuntu.com/security/CVE-2025-38479

Affected software / configurations for CVE-2025-38479

Vendor	Product	Version	Raw CPE
linux	linux_kernel	>= 6.11, < 6.12.23	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.13, < 6.13.11	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.14, < 6.14.2	cpe:2.3:o:linux:linux_kernel::::::::

References for CVE-2025-38479

URL	Tags
https://git.kernel.org/stable/c/38ff8769074db27387cb2323aaa751e59d168e6a	Patch
https://git.kernel.org/stable/c/55e2dbe2ba787d4fc2306f6bb2f43fb32176e184	Patch
https://git.kernel.org/stable/c/f3834d2d68749e4760c27325149765930ad876fd	Patch
https://git.kernel.org/stable/c/fa70c4c3c580c239a0f9e83a14770ab026e8d820	Patch

URL

CVE-2025-38479 | dmaengine: fsl-edma: free irq correctly in remove path

Exploit prediction scoring system (EPSS) score for CVE-2025-38479

Common vulnerability scoring system (CVSS) metrics for CVE-2025-38479

Weakness enumeration for CVE-2025-38479

OS Trackers for CVE-2025-38479

Affected software / configurations for CVE-2025-38479

References for CVE-2025-38479