CVE-2026-93222

Description

In the Linux kernel, the following vulnerability has been resolved: signal: avoid shared siginfo namespace rewrites send_signal_locked() rewrites sender ids for the target namespace. Group sends reuse the same siginfo, so one recipient can affect the next. Copy the siginfo before changing it.

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EPSS — Exploit Prediction

0.0018

Probability of exploitation

0.07%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/03c8761e75d1619906bb503686f9cc1dfc6a67f4 https://git.kernel.org/stable/c/148b0dae2a1755beb873a2aab51fb191414f068c https://git.kernel.org/stable/c/4ee7c4e4719a825052f42f02ec159b5b42b68fbc https://git.kernel.org/stable/c/6b1de022304ef85284c5933a5fb8492f6f54efc9 https://git.kernel.org/stable/c/a246da20c8e4ae4319511c698b9f26ad0ad1769f https://git.kernel.org/stable/c/b655c2040ce836afad5643842543567b31f8c11d https://git.kernel.org/stable/c/d19cdc167e696714509e87d3f7ae765b6e164589 https://git.kernel.org/stable/c/e015d1ac6b43a23c52c5163299414ae77d7d4ae0

Frequently Asked Questions

What is CVE-2026-93222? +

In the Linux kernel, the following vulnerability has been resolved: signal: avoid shared siginfo namespace rewrites send_signal_locked() rewrites sender ids for the target namespace. Group sends reuse the same siginfo, so one recipient can affect the next. Copy the siginfo before changing it.

How do I check if I'm vulnerable to CVE-2026-93222? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.