CVE-2026-98695 | BDVDB-2026-391024 Detail
LinuxLinux
Description#
In the Linux kernel, the following vulnerability has been resolved: USB: serial: fix ioctl hangup race The tty ioctls can race with hangup and end up calling into a tty driver for a device that is already gone or powered down. Serialise the callbacks using the tty port mutex and add the missing checks to make sure the port has not been hung up before accessing port driver data or hardware. This specifically avoids dereferencing a NULL-pointer if a device is disconnected during lengthy break signalling. Note that TIOCGICOUNT and TIOCMIWAIT do not access port driver data or hardware and are therefore not affected by the race.
Impact#
No impact statement in the source data.
Weaknesses#
No weakness recorded in the source data.
References#
- https://git.kernel.org/stable/c/c7ef25e96dc3f808eb891bbbd43b6a682846eb0c
- https://git.kernel.org/stable/c/98f0a25134bfce44ebd1db0341fa0e8603ff276d
- https://git.kernel.org/stable/c/3a728adbed9fd822f99a9d9c5ebad5c3b565ba4a
- https://git.kernel.org/stable/c/24d6edb6bd7f7a9e6cee2f8fe435781daab8aa0f
- https://git.kernel.org/stable/c/ae0da9a5c1ca95c20cc5feffd511ce6eae75924e
- https://git.kernel.org/stable/c/4597ddd6168ae2a4123404e5f0871f1070dc7773
- https://git.kernel.org/stable/c/7912a95d1345c77d8d63b530b00c118700b78abd
- https://git.kernel.org/stable/c/ae0e61d95677efa778379853e495d748e6efbf95
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.