CVE-2025-38416

In the Linux kernel, the following vulnerability has been resolved: NFC: nci: uart: Set tty->disc_data only in success path Setting tty->disc_data before opening the NCI device means we need to clean it up on error paths. This also opens some short window if device starts sending data, even before NCIUARTSETDRIVER IOCTL succeeded (broken hardware?). Close the window by exposing tty->disc_data only on the success path, when opening of the NCI device and try_module_get() succeeds. The code differs in error path in one aspect: tty->disc_data won't be ever assigned thus NULL-ified. This however should not be relevant difference, because of "tty->disc_data=NULL" in nci_uart_tty_open().
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

History

23 Dec 2025, 18:45

Type Values Removed Values Added
First Time Linux
Debian
Debian debian Linux
Linux linux Kernel
References () https://git.kernel.org/stable/c/000bfbc6bc334a93fffca8f5aa9583e7b6356cb5 - () https://git.kernel.org/stable/c/000bfbc6bc334a93fffca8f5aa9583e7b6356cb5 - Patch
References () https://git.kernel.org/stable/c/55c3dbd8389636161090a2b2b6d2d709b9602e9c - () https://git.kernel.org/stable/c/55c3dbd8389636161090a2b2b6d2d709b9602e9c - Patch
References () https://git.kernel.org/stable/c/a514fca2b8e95838a3ba600f31a18fa60b76d893 - () https://git.kernel.org/stable/c/a514fca2b8e95838a3ba600f31a18fa60b76d893 - Patch
References () https://git.kernel.org/stable/c/a8acc7080ad55c5402a1b818b3008998247dda87 - () https://git.kernel.org/stable/c/a8acc7080ad55c5402a1b818b3008998247dda87 - Patch
References () https://git.kernel.org/stable/c/ac6992f72bd8e22679c1e147ac214de6a7093c23 - () https://git.kernel.org/stable/c/ac6992f72bd8e22679c1e147ac214de6a7093c23 - Patch
References () https://git.kernel.org/stable/c/dc7722619a9c307e9938d735cf4a2210d3d48dcb - () https://git.kernel.org/stable/c/dc7722619a9c307e9938d735cf4a2210d3d48dcb - Patch
References () https://git.kernel.org/stable/c/e9799db771b2d574d5bf0dfb3177485e5f40d4d6 - () https://git.kernel.org/stable/c/e9799db771b2d574d5bf0dfb3177485e5f40d4d6 - Patch
References () https://git.kernel.org/stable/c/fc27ab48904ceb7e4792f0c400f1ef175edf16fe - () https://git.kernel.org/stable/c/fc27ab48904ceb7e4792f0c400f1ef175edf16fe - Patch
References () https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html - () https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html - Third Party Advisory, Mailing List
References () https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html - () https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html - Third Party Advisory, Mailing List
CPE cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.8
CWE NVD-CWE-noinfo

03 Nov 2025, 18:16

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: NFC: nci: uart: Establecer tty->disc_data solo en la ruta correcta. Configurar tty->disc_data antes de abrir el dispositivo NCI implica la necesidad de eliminar las rutas de error. Esto también genera una pequeña ventana de tiempo si el dispositivo comienza a enviar datos, incluso antes de que NCIUARTSETDRIVER IOCTL se haya ejecutado correctamente (¿hardware dañado?). Esta ventana se cierra exponiendo tty->disc_data solo en la ruta correcta cuando se abre el dispositivo NCI y try_module_get() se ejecuta correctamente. El código difiere en la ruta de error en un aspecto: tty->disc_data nunca se asignará, por lo que se convierte en NULL. Sin embargo, esta diferencia no debería ser relevante, debido a "tty->disc_data=NULL" en nci_uart_tty_open().
References
  • () https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html -
  • () https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html -

25 Jul 2025, 14:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-07-25 14:15

Updated : 2025-12-23 18:45


NVD link : CVE-2025-38416

Mitre link : CVE-2025-38416

CVE.ORG link : CVE-2025-38416


JSON object : View

Products Affected

debian

  • debian_linux

linux

  • linux_kernel