CVE-2026-53295
In the Linux kernel, the following vulnerability has been resolved: mailbox: add sanity check for channel array Fail gracefully if there is no channel array attached to the mailbox controller. Otherwise the later dereference will cause an OOPS which might not be seen because mailbox controllers might instantiate very early. Remove the comment explaining the obvious while here.
Affected versions
Linux kernel versions
3.18
and later are affected. Fixed in
5.10.258,
5.15.209,
6.1.175,
6.6.141,
6.12.91,
6.18.33,
7.0.10,
7.1
and their respective stable series.
References
8 totalFrequently asked questions
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What is CVE-2026-53295?
CVE-2026-53295 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 3.18 onward and has been patched in 5.10.258, 5.15.209, 6.1.175 and others. CVE-2026-53295 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-53295?
Yes — CVE-2026-53295 has been patched. Fixed versions include 5.10.258, 5.15.209, 6.1.175 and others. If you are running Linux kernel 3.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-53295 actively exploited?
No — CVE-2026-53295 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.