What’s Vulnerable › Vulnerabilities

CVE-2023-53759: HID: hidraw: fix data race on device refcount

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-08 · updated 2026-08-04

Description

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 products

• Linux kernel: 5.17 — fixed in 6.5

How to fix

Upgrade to a fixed version: Linux kernel 6.5. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/05b47034e2488c2924e5c032e20a1979d012b5b5
• https://git.kernel.org/stable/c/879e79c3aead41b8aa2e91164354b30bd1c4ef3b
• https://git.kernel.org/stable/c/944ee77dc6ec7b0afd8ec70ffc418b238c92f12b
• https://git.kernel.org/stable/c/ff348eabd97577da974d3db7038857f28c61d2bd

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