eventfs: Initialize ei->children and ei->list in init_ei() (CVE-2026-89618) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-89618

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

Answer in brief

CVE-2026-89618 records a Unknown severity vulnerability in eventfs: Initialize ei->children and ei->list in init_ei(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 11, 2026Updated Sep 11, 2026Source checked Sep 11, 2026First seen by HOL Sep 11, 2026Material review Sep 11, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=5790b1fb3d672d9a1fe3881a7181dfdbe741568f <c480f8af173d5b19c6d9c4311df6bbe352face9e \|\| >=5790b1fb3d672d9a1fe3881a7181dfdbe741568f <5333e18e6b425fcc39c7fea89e3949a2a98bc5e4 \|\| >=5790b1fb3d672d9a1fe3881a7181dfdbe741568f <76e0f85f650738d768449dbccbc7c55d05f5b609 \|\| >=5790b1fb3d672d9a1fe3881a7181dfdbe741568f <1704aaaf5d22bc765c168402350d191e24e245bc \|\| 35ee34c0f6d578c9d245438ca29bf2e7024a5a65 \|\| >=6.6.18 <6.7	c480f8af173d5b19c6d9c4311df6bbe352face9e, 5333e18e6b425fcc39c7fea89e3949a2a98bc5e4, 76e0f85f650738d768449dbccbc7c55d05f5b609, 1704aaaf5d22bc765c168402350d191e24e245bc, 6.7
Linux/Linuxgeneric	6.7	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to c480f8af173d5b19c6d9c4311df6bbe352face9e if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 11, 2026

Sources and claim methodology

Upstream source 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 ]

Quoted source text, attributed separately from HOL analysis.