#VU115396 Use-after-free in Linux kernel - CVE-2025-39783
Published: September 16, 2025
Vulnerability identifier: #VU115396
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-39783
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the pci_epf_remove_cfs() function in drivers/pci/endpoint/pci-epf-core.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/0758862386f114d9ab1e23181461bd1e2e9ec4c6
- https://git.kernel.org/stable/c/409af8b9f7b4f23cd0464e71c6cd6fe13c076ae2
- https://git.kernel.org/stable/c/6cf65505523224cab1449d726d2ce8180c2941ee
- https://git.kernel.org/stable/c/80ea6e6904fb2ba4ccb5d909579988466ec65358
- https://git.kernel.org/stable/c/a302bd89db35d8b7e279de4d2b41c16c7f191069
- https://git.kernel.org/stable/c/d5aecddc3452371d9da82cdbb0c715812524b54b
- https://git.kernel.org/stable/c/d79123d79a8154b4318529b7b2ff7e15806f480b
- https://git.kernel.org/stable/c/dc4ffbd571716ff3b171418fb03abe80e720a7b1