Out-of-bounds read in Linux kernel - CVE-2025-39907
Published: October 1, 2025
Vulnerability identifier: #VU116230
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-39907
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the stm32_fmc2_nfc_xfer() and stm32_fmc2_nfc_dma_setup() functions in drivers/mtd/nand/raw/stm32_fmc2_nand.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2025-39907
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/06d8ef8f853752fea88c8d5bb093a40e71b330cf
- https://git.kernel.org/stable/c/26adba1e7d7924174e15a3ba4b1132990786300b
- https://git.kernel.org/stable/c/513c40e59d5a414ab763a9c84797534b5e8c208d
- https://git.kernel.org/stable/c/75686c49574dd5f171ca682c18717787f1d8d55e
- https://git.kernel.org/stable/c/f6fd98d961fa6f97347cead4f08ed862cbbb91ff