VulnerabilityPublished 24 Sep 2026Updated 21 Oct 2026

CVE-2026-93285: Linux kernel · f2fs: embed f2fs_gc_kthread in f2fs_sb_info

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in cc004a1107e2c44cbdd2f1b1c2c85d32adc8f731 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 14:18 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in cc004a1107e2c44cbdd2f1b1c2c85d32adc8f731, 99d14d61aa8beb6cb9a984b9fcddd45e35b24494, 23eee01c732ec8c62b05416a05f0f88129df2960 +2

Exploitation evidence

Disclosed: evidence found.
CVE published 24 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 7950e9ac638e84518fbdd5c930939ad46a1068c5, < cc004a1107e2c44cbdd2f1b1c2c85d32adc8f731	Fixed in cc004a1107e2c44cbdd2f1b1c2c85d32adc8f731
LinuxLinux	Affected ≥ 7950e9ac638e84518fbdd5c930939ad46a1068c5, < 99d14d61aa8beb6cb9a984b9fcddd45e35b24494	Fixed in 99d14d61aa8beb6cb9a984b9fcddd45e35b24494
LinuxLinux	Affected ≥ 7950e9ac638e84518fbdd5c930939ad46a1068c5, < 23eee01c732ec8c62b05416a05f0f88129df2960	Fixed in 23eee01c732ec8c62b05416a05f0f88129df2960
LinuxLinux	Affected ≥ 7950e9ac638e84518fbdd5c930939ad46a1068c5, < 7ee6be9ee7f9a803e0f539af26ab1154fdde48ba	Fixed in 7ee6be9ee7f9a803e0f539af26ab1154fdde48ba
LinuxLinux	Affected ≥ 7950e9ac638e84518fbdd5c930939ad46a1068c5, < 3d7bca9d583793bb7d0bac0d95a24ddd2e129eed	Fixed in 3d7bca9d583793bb7d0bac0d95a24ddd2e129eed
LinuxLinux	Affected =4.16	Fixed in–

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

References

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