#VU117748 Input validation error in Linux kernel - CVE-2025-40043
Published: October 28, 2025
Vulnerability identifier: #VU117748
Vulnerability risk: Low
CVSSv4.0: 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-2025-40043
CWE-ID: CWE-20
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 perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the nci_core_reset_ntf_packet(), nci_core_conn_credits_ntf_packet(), nci_core_generic_error_ntf_packet(), nci_core_conn_intf_error_ntf_packet(), nci_clear_target_list(), nci_rf_discover_ntf_packet(), nci_store_general_bytes_nfc_dep(), nci_rf_intf_activated_ntf_packet(), nci_rf_deactivate_ntf_packet(), nci_nfcee_discover_ntf_packet() and nci_ntf_packet() functions in net/nfc/nci/ntf.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/0ba68bea1e356f466ad29449938bea12f5f3711f
- https://git.kernel.org/stable/c/74837bca0748763a77f77db47a0bdbe63b347628
- https://git.kernel.org/stable/c/8fcc7315a10a84264e55bb65ede10f0af20a983f
- https://git.kernel.org/stable/c/9c328f54741bd5465ca1dc717c84c04242fac2e1
- https://git.kernel.org/stable/c/bfdda0123dde406dbff62e7e9136037e97998a15
- https://git.kernel.org/stable/c/c395d1e548cc68e84584ffa2e3ca9796a78bf7b9