What’s Vulnerable › Vulnerabilities

CVE-2022-49906: ibmvnic: Free rwi on reset success

• 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
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Free rwi on reset success Free the rwi structure in the event that the last rwi in the list processed successfully. The logic in commit 4f408e1fa6e1 ("ibmvnic: retry reset if there are no other resets") introduces an issue that results in a 32 byte memory leak whenever the last rwi in the list gets processed.

Affected products

• Linux kernel: from 5.14 before 5.15.78; from 5.16 before 6.0.8; 6.1-rc1, 6.1-rc2, 6.1-rc3 — fixed in 5.15.78, 6.0.8

How to fix

Upgrade to a fixed version: Linux kernel 5.15.78, 6.0.8. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/535b78739ae75f257c894a05b1afa86ad9a3669e
• https://git.kernel.org/stable/c/c3543a287cfba9105dcc4bb41eb817f51266caaf
• https://git.kernel.org/stable/c/d6dd2fe71153f0ff748bf188bd4af076fe09a0a6

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