CVE-2026-90396
In the Linux kernel, the following vulnerability has been resolved: block: fix dio leak on metadata mapping error A failed integrity mapping holds a dio reference, so we need to go through the full bio ending in case there were previously submitted bio's in the sequence.
Affected versions
Linux kernel versions
6.16.8,
6.17
and later are affected. Fixed in
6.18.52,
7.2.6,
7.3-rc1
and their respective stable series.
References
3 totalFrequently asked questions
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What is CVE-2026-90396?
CVE-2026-90396 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.16.8 onward and has been patched in 6.18.52, 7.2.6 and 7.3-rc1. CVE-2026-90396 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-2026-90396?
Yes. CVE-2026-90396 has been patched. Fixed versions include 6.18.52, 7.2.6 and 7.3-rc1. If you are running Linux kernel 6.16.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-90396 actively exploited?
No. CVE-2026-90396 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.