CVE-2022-50708: HSI: ssi_protocol: fix potential resource leak in ssip_pn_open()

Severity: unknown
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-24 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: HSI: ssi_protocol: fix potential resource leak in ssip_pn_open() ssip_pn_open() claims the HSI client's port with hsi_claim_port(). When hsi_register_port_event() gets some error and returns a negetive value, the HSI client's port should be released with hsi_release_port(). Fix it by calling hsi_release_port() when hsi_register_port_event() fails.

Affected products

Linux kernel: 3.16 — fixed in 6.1

How to fix

Upgrade to a fixed version: Linux kernel 6.1. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/78b0ef14896f843c45372f9bbdb6f6070f977eaf
https://git.kernel.org/stable/c/b28dbcb379e6a7f80262c2732a57681b1ee548ca
https://git.kernel.org/stable/c/e78b45b3eeee1cec77c794fcbf0512537c20b1dc

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