# CVE-2026-89618

## Summary

- **CVE ID:** CVE-2026-89618
- **Severity:** UNKNOWN
- **CVSS Score:** 1.51
- **CWE:** N/A
- **Published:** Sep 11, 2026
- **Last Modified:** Sep 16, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:

eventfs: Initialize ei->children and ei->list in init_ei()

eventfs_create_dir() allocates the eventfs_inode and initializes it with
init_ei(). But this does not initialize the eventfs_inode list_heads. If
the eventfs_create_dir() fails due to memory pressure, it will call
free_ei() before it initialized the lists, and that checks to make sure
the eventfs_inode has no children. But because the list wasn't
initialized, it will give a false warning.

Fix it by moving the list initialization into init_ei().

[ Rewrote change log ]

## Affected Products

- Linux — Linux (5790b1fb3d672d9a1fe3881a7181dfdbe741568f)
- Linux — Linux (35ee34c0f6d578c9d245438ca29bf2e7024a5a65)
- Linux — Linux (6.6.18)
- Linux — Linux (6.7)
- Linux — Linux (0)
- Linux — Linux (6.12.109)
- Linux — Linux (6.18.50)
- Linux — Linux (7.2.4)
- Linux — Linux (7.3-rc1)
- Linux — Linux (6.6.157)

## References

- [CNA](https://git.kernel.org/stable/c/c480f8af173d5b19c6d9c4311df6bbe352face9e)
- [CNA](https://git.kernel.org/stable/c/5333e18e6b425fcc39c7fea89e3949a2a98bc5e4)
- [CNA](https://git.kernel.org/stable/c/76e0f85f650738d768449dbccbc7c55d05f5b609)
- [CNA](https://git.kernel.org/stable/c/1704aaaf5d22bc765c168402350d191e24e245bc)
- [CNA](https://git.kernel.org/stable/c/069729282fbecfaa8a54062266c338ed23f08005)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.18%
- **EPSS Percentile:** 7.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._