CVE-2026-93222

CVE-2026-93222: vulnerability in Linux

signal: avoid shared siginfo namespace rewrites

Published

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 0.2%
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Linux · Linux
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In the same product, most dangerous first.

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References
https://git.kernel.org/stable/c/03c8761e75d1619906bb503686f9cc1dfc6a67f4https://git.kernel.org/stable/c/148b0dae2a1755beb873a2aab51fb191414f068chttps://git.kernel.org/stable/c/4ee7c4e4719a825052f42f02ec159b5b42b68fbchttps://git.kernel.org/stable/c/6b1de022304ef85284c5933a5fb8492f6f54efc9https://git.kernel.org/stable/c/a246da20c8e4ae4319511c698b9f26ad0ad1769fhttps://git.kernel.org/stable/c/b655c2040ce836afad5643842543567b31f8c11dhttps://git.kernel.org/stable/c/d19cdc167e696714509e87d3f7ae765b6e164589https://git.kernel.org/stable/c/e015d1ac6b43a23c52c5163299414ae77d7d4ae0