CVE-2023-53759

Summary

In the Linux kernel, the following vulnerability has been resolved:

HID: hidraw: fix data race on device refcount

The hidraw_open() function increments the hidraw device reference counter. The counter has no dedicated synchronization mechanism, resulting in a potential data race when concurrently opening a device.

The race is a regression introduced by commit 8590222e4b02 ("HID: hidraw: Replace hidraw device table mutex with a rwsem"). While minors_rwsem is intended to protect the hidraw_table itself, by instead acquiring the lock for writing, the reference counter is also protected. This is symmetrical to hidraw_release().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux8590222e4b021054a7167a4dd35b152a8ed7018e < 879e79c3aead41b8aa2e91164354b30bd1c4ef3baffected
LinuxLinux8590222e4b021054a7167a4dd35b152a8ed7018e < ff348eabd97577da974d3db7038857f28c61d2bdaffected
LinuxLinux8590222e4b021054a7167a4dd35b152a8ed7018e < 05b47034e2488c2924e5c032e20a1979d012b5b5affected
LinuxLinux8590222e4b021054a7167a4dd35b152a8ed7018e < 944ee77dc6ec7b0afd8ec70ffc418b238c92f12baffected
LinuxLinux5.17affected
LinuxLinux0 < 5.17unaffected
LinuxLinux6.1.37 <= 6.1.*unaffected
LinuxLinux6.3.11 <= 6.3.*unaffected
LinuxLinux6.4.1 <= 6.4.*unaffected
LinuxLinux6.5 <= *unaffected

Weaknesses

References