CVE-2025-37916 [High] | Use-After-Free in Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: pds_core: remove write-after-free of client_id A use-after-free error popped up in stress testing: [Mon Apr 21 21:21:33 2025] BUG: KFENCE: use-after-free write in pdsc_auxbus_dev_del+0xef/0x160 [pds_core] [Mon Apr 21 21:21:33 2025] Use-after-free write at 0x000000007013ecd1 (in kfence-#47): [Mon Apr 21 21:21:33 2025] pdsc_auxbus_dev_del+0xef/0x160 [pds_core] [Mon Apr 21 21:21:33 2025] pdsc_remove+0xc0/0x1b0 [pds_core] [Mon Apr 21 21:21:33 2025] pci_device_remove+0x24/0x70 [Mon Apr 21 21:21:33 2025] device_release_driver_internal+0x11f/0x180 [Mon Apr 21 21:21:33 2025] driver_detach+0x45/0x80 [Mon Apr 21 21:21:33 2025] bus_remove_driver+0x83/0xe0 [Mon Apr 21 21:21:33 2025] pci_unregister_driver+0x1a/0x80 The actual device uninit usually happens on a separate thread scheduled after this code runs, but there is no guarantee of order of thread execution, so this could be a problem. There's no actual need to clear the client_id at this point, so simply remove the offending code.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.07%	0.17%	+0.10%
2	2026-03-16	0.02%	0.07%	+0.05%
3	2025-05-21	—	0.02%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.07%

0.17%

+0.10%

2026-03-16

0.02%

0.07%

+0.05%

2025-05-21

—

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-2025-37916

vendor	priority	summary	link
`debian`	unimportant	CVE-2025-37916 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-2025-37916
`redhat`	—	—	https://access.redhat.com/security/cve/CVE-2025-37916
`suse`	medium	—	https://www.suse.com/security/cve/CVE-2025-37916/
`ubuntu`	medium	CVE-2025-37916 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1551 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1145, ignored 164, released 136, not-affected 101, needed 2, needs-triage 2, pending 1.	https://ubuntu.com/security/CVE-2025-37916

Affected software / configurations for CVE-2025-37916

Vendor	Product	Version	Raw CPE
linux	linux_kernel	>= 6.4, < 6.6.90	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.7, < 6.12.28	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.13, < 6.14.6	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	6.15	cpe:2.3:o:linux:linux_kernel:6.15:rc1::::::
linux	linux_kernel	6.15	cpe:2.3:o:linux:linux_kernel:6.15:rc2::::::
linux	linux_kernel	6.15	cpe:2.3:o:linux:linux_kernel:6.15:rc3::::::
linux	linux_kernel	6.15	cpe:2.3:o:linux:linux_kernel:6.15:rc4::::::

References for CVE-2025-37916

URL	Tags
https://git.kernel.org/stable/c/26dc701021302f11c8350108321d11763bd81dfe	Patch
https://git.kernel.org/stable/c/9b467c5bcdb45a41d2a49fbb9ffca73d1380e99b	Patch
https://git.kernel.org/stable/c/c649b9653ed09196e91d3f4b16b679041b3c42e6	Patch
https://git.kernel.org/stable/c/dfd76010f8e821b66116dec3c7d90dd2403d1396	Patch

URL

CVE-2025-37916 | pds_core: remove write-after-free of client_id

Exploit prediction scoring system (EPSS) score for CVE-2025-37916

Common vulnerability scoring system (CVSS) metrics for CVE-2025-37916

Weakness enumeration for CVE-2025-37916

OS Trackers for CVE-2025-37916

Affected software / configurations for CVE-2025-37916

References for CVE-2025-37916