What’s Vulnerable › Vulnerabilities

CVE-2022-50889: dm integrity: Fix UAF in dm_integrity_dtr()

• 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: 2025-12-30 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: dm integrity: Fix UAF in dm_integrity_dtr() Dm_integrity also has the same UAF problem when dm_resume() and dm_destroy() are concurrent. Therefore, cancelling timer again in dm_integrity_dtr().

Affected products

• Linux kernel: 4.12 — fixed in 6.2

How to fix

Upgrade to a fixed version: Linux kernel 6.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/792e51aac376cfb5bd527c2a30826223b82dd177
• https://git.kernel.org/stable/c/9215b25f2e105032114e9b92c9783a2a84ee8af9
• https://git.kernel.org/stable/c/9f8e1e54a3a424c6c4fb8742e094789d3ec91e42
• https://git.kernel.org/stable/c/a506b5c92757b034034ef683e667bffc456c600b
• https://git.kernel.org/stable/c/b6c93cd61afab061d80cc842333abca97b289774
• https://git.kernel.org/stable/c/f50cb2cbabd6c4a60add93d72451728f86e4791c

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