CVE-2025-71163 [Medium] | Information Disclosure in Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix device leaks on compat bind and unbind Make sure to drop the reference taken when looking up the idxd device as part of the compat bind and unbind sysfs interface.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.02%	0.19%	+0.18%
2	2026-01-26	—	0.02%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.02%

0.19%

+0.18%

2026-01-26

—

0.02%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.5	3.1	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	1.8	3.6	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

5.5

3.1

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:N): Doesn’t really leak secrets in a meaningful way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

1.8

3.6

[email protected]

OS Trackers for CVE-2025-71163

vendor	priority	summary	link
`debian`	unimportant	CVE-2025-71163 unimportant priority: Debian including 2 source packages (linux, linux-6.1), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6.	https://security-tracker.debian.org/tracker/CVE-2025-71163
`redhat`	—	—	https://access.redhat.com/security/cve/CVE-2025-71163
`suse`	medium	CVE-2025-71163 severity moderate: SUSE including 393 source package names (13.2-9.1:libsqlite3-0-3.49.1-1.1, 2.1.3-6.115:kernel-default-base-6.4.0-39.1.21.16, …), 713 product×package rows across 89 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (89 product lines)): Fixed 277, Known Affected 231, Known Not Affected 180, First Fixed 25.	https://www.suse.com/security/cve/CVE-2025-71163/
`ubuntu`	medium	CVE-2025-71163 medium priority: Ubuntu including 157 source packages (linux, linux-allwinner-5.19, …), 1256 status rows across 8 suites (bionic, focal, jammy, noble, questing, trusty, upstream, xenial): DNE 871, ignored 169, released 102, needed 52, not-affected 46, pending 16.	https://ubuntu.com/security/CVE-2025-71163

Affected software / configurations for CVE-2025-71163

Vendor	Product	Version	Raw CPE
linux	linux_kernel	>= 5.15, < 5.15.199	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.16, < 6.1.162	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.2, < 6.6.122	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.7, < 6.12.67	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.13, < 6.18.7	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc1::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc2::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc3::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc4::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc5::::::

References for CVE-2025-71163

URL	Tags
https://git.kernel.org/stable/c/0c97ff108f825a70c3bb29d65ddf0a013d231bb9	Patch
https://git.kernel.org/stable/c/799900f01792cf8b525a44764f065f83fcafd468	Patch
https://git.kernel.org/stable/c/a7226fd61def74b60dd8e47ec84cabafc39d575b	Patch
https://git.kernel.org/stable/c/b2d077180a56e3b7c97b7517d0465b584adc693b	Patch
https://git.kernel.org/stable/c/b7bd948f89271c92d9ca9b2b682bfba56896e959	Patch
https://git.kernel.org/stable/c/c81ea0222eaaafdd77348e27d1e84a1b8cfc0c99	Patch

URL

CVE-2025-71163 | dmaengine: idxd: fix device leaks on compat bind and unbind

Exploit prediction scoring system (EPSS) score for CVE-2025-71163

Common vulnerability scoring system (CVSS) metrics for CVE-2025-71163

Weakness enumeration for CVE-2025-71163

OS Trackers for CVE-2025-71163

Affected software / configurations for CVE-2025-71163

References for CVE-2025-71163