CVE-2025-38416

NFC: nci: uart: Set tty->disc_data only in success path

Description

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().

N/A

CVSS

Severity:

EPSS 0.03%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/a514fca2b8e95838a3ba600f31a18fa60b76d893
https://git.kernel.org/stable/c/000bfbc6bc334a93fffca8f5aa9583e7b6356cb5
https://git.kernel.org/stable/c/ac6992f72bd8e22679c1e147ac214de6a7093c23
https://git.kernel.org/stable/c/dc7722619a9c307e9938d735cf4a2210d3d48dcb
https://git.kernel.org/stable/c/a8acc7080ad55c5402a1b818b3008998247dda87
https://git.kernel.org/stable/c/55c3dbd8389636161090a2b2b6d2d709b9602e9c
https://git.kernel.org/stable/c/e9799db771b2d574d5bf0dfb3177485e5f40d4d6
https://git.kernel.org/stable/c/fc27ab48904ceb7e4792f0c400f1ef175edf16fe

Frequently Asked Questions

What is the severity of CVE-2025-38416?: CVE-2025-38416 has not yet been assigned a CVSS score.
How to fix CVE-2025-38416?: To fix CVE-2025-38416, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-38416 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-38416 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-38416?: CVE-2025-38416 affects Linux Linux, Linux Linux.

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