CVE-2026-74606
In the Linux kernel, the following vulnerability has been resolved: eventfs: Fix use-after-free in eventfs_remove_rec() eventfs_remove_rec() recursively removes the child at the current loop position. After the recursive call returns, list_for_each_entry() advances by reading list.next from the removed child. If free_ei() drops the final reference, release_ei() reuses the list/rcu union to queue an SRCU callback. The child may be freed before that read. The eventfs_mutex serializes list updates, but it does not keep the removed child alive or prevent the SRCU callback from running. Use list_for_each_entry_safe() to save the next sibling before recursively removing the current child.
Affected versions
Linux kernel versions
6.6.18,
6.7.6,
6.8
and later are affected. Fixed in
6.6.152,
6.12.104,
6.18.45,
7.1.9,
7.2
and their respective stable series.
References
5 totalFrequently asked questions
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What is CVE-2026-74606?
CVE-2026-74606 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.6.18 onward and has been patched in 6.6.152, 6.12.104, 6.18.45 and others. CVE-2026-74606 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-2026-74606?
Yes. CVE-2026-74606 has been patched. Fixed versions include 6.6.152, 6.12.104, 6.18.45 and others. If you are running Linux kernel 6.6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-74606 actively exploited?
No. CVE-2026-74606 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.