f2fs: embed f2fs_gc_kthread in f2fs_sb_info

Answer in brief

CVE-2026-93285 records a Unknown severity vulnerability in f2fs: embed f2fs_gc_kthread in f2fs_sb_info. 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 24, 2026Updated Sep 24, 2026Source checked Sep 25, 2026First seen by HOL Sep 25, 2026Material review Sep 24, 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	>=7950e9ac638e84518fbdd5c930939ad46a1068c5 <23eee01c732ec8c62b05416a05f0f88129df2960 \|\| >=7950e9ac638e84518fbdd5c930939ad46a1068c5 <99d14d61aa8beb6cb9a984b9fcddd45e35b24494 \|\| >=7950e9ac638e84518fbdd5c930939ad46a1068c5 <3d7bca9d583793bb7d0bac0d95a24ddd2e129eed	23eee01c732ec8c62b05416a05f0f88129df2960, 99d14d61aa8beb6cb9a984b9fcddd45e35b24494, 3d7bca9d583793bb7d0bac0d95a24ddd2e129eed
Linux/Linuxgeneric	4.16	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 23eee01c732ec8c62b05416a05f0f88129df2960 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 25, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: f2fs: embed f2fs_gc_kthread in f2fs_sb_info Instead of allocating f2fs_gc_kthread dynamically, embed it in f2fs_sb_info. This simplifies lifetime management and prepares for fixing race conditions during teardown. - __sbi_store - remount|shutdown - f2fs_stop_gc_thread - access sbi->gc_thread - sbi->gc_thread = NULL - access sbi->gc_thread->f2fs_gc_task

Quoted source text, attributed separately from HOL analysis.