What’s Vulnerable › Vulnerabilities

CVE-2022-49818: mISDN: fix misuse of put_device() in mISDN_register_device()

• Severity: medium (CVSS 5.5 v3.1)
• 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: 2025-05-01 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: mISDN: fix misuse of put_device() in mISDN_register_device() We should not release reference by put_device() before calling device_initialize().

Affected products

• Linux kernel: from 4.19.265 before 4.19.267; from 5.10.154 before 5.10.156; from 5.15.78 before 5.15.80; from 6.0.8 before 6.0.10; 4.9.333, 4.14.299, 5.4.224, 6.1-rc4, 6.1-rc5 — fixed in 4.19.267, 5.10.156, 5.15.80, 6.0.10

How to fix

Upgrade to a fixed version: Linux kernel 4.19.267, 5.10.156, 5.15.80, 6.0.10. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2d25107e111a85c56f601a5470f1780ec054e6ac
• https://git.kernel.org/stable/c/44658d65f6b3118f595a1229d7eed74845a5e2ac
• https://git.kernel.org/stable/c/596230471da3415e92ae6b9d2a4e26f4a81cac5a
• https://git.kernel.org/stable/c/709aa1f73d3e9e9ea16e2c4e44f2874c5d2c382c
• https://git.kernel.org/stable/c/81db4f182744acd004f17d7cc52dde9ea53467e6
• https://git.kernel.org/stable/c/83672c1b83d107b0d4fe0accf1bf64d8988398e6
• https://git.kernel.org/stable/c/87b336aa158201dc30a318431e63e8c5b26c4156
• https://git.kernel.org/stable/c/d40b35a7922f4df3767ad6fb8ef3dc86e31d7ba3

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