CVE-2025-37916

HIGH

Linux Kernel 6.4-6.6.89, 6.7-6.12.27, 6.13-6.14.5 - Use-After-Free in pds_core Client ID Handling

Title source: llm
STIX 2.1

Description

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.

Scores

CVSS v3 7.8
EPSS 0.0017
EPSS Percentile 6.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (15)
linux/Kernel 6.13.0 - 6.14.6linux
linux/Kernel 6.4.0 - 6.6.90linux
linux/Kernel 6.7.0 - 6.12.28linux
Linux/Linux < 6.4
Linux/Linux 10659034c622738bc1bfab8a76fc576c52d5acce - 26dc701021302f11c8350108321d11763bd81dfe
Linux/Linux 10659034c622738bc1bfab8a76fc576c52d5acce - 9b467c5bcdb45a41d2a49fbb9ffca73d1380e99b
Linux/Linux 10659034c622738bc1bfab8a76fc576c52d5acce - c649b9653ed09196e91d3f4b16b679041b3c42e6
Linux/Linux 10659034c622738bc1bfab8a76fc576c52d5acce - dfd76010f8e821b66116dec3c7d90dd2403d1396
Linux/Linux 6.12.28 - 6.12.*
Linux/Linux 6.14.6 - 6.14.*
... and 5 more
Published May 20, 2025
Tracked Since Feb 18, 2026