VulnerabilityPublished 23 Oct 2026

CVE-2026-98994: Linux kernel · statmount: read the parent of an unmounted mount under mount_lock

Source GCVE Database

Authoritative record:CVE-2026-98994· High

Not known to be exploited : upgrade to bb46094057520304073130920c223451c2a694a7 or 98fc6c7b6ca676157d2c780bd0a537b2c10fe08f soon.

Data as of 26 Oct 2026, 13:47 UTC

Severity

High

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in bb46094057520304073130920c223451c2a694a7, 98fc6c7b6ca676157d2c780bd0a537b2c10fe08f

Exploitation evidence

Disclosed: evidence found.
CVE published 23 Oct 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.

ghsa-2fr8-4rp8-wvj2

What to do

Upgrade Linux kernel to bb46094057520304073130920c223451c2a694a7 or 98fc6c7b6ca676157d2c780bd0a537b2c10fe08f.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 0e5032237ee5530147fbdf33134297e1490d5ec3, < bb46094057520304073130920c223451c2a694a7	Fixed in bb46094057520304073130920c223451c2a694a7
LinuxLinux	Affected ≥ 0e5032237ee5530147fbdf33134297e1490d5ec3, < 98fc6c7b6ca676157d2c780bd0a537b2c10fe08f	Fixed in 98fc6c7b6ca676157d2c780bd0a537b2c10fe08f
LinuxLinux	Affected =7.0	Fixed in–

AI-suggested

A fix has been applied to the Linux kernel to resolve this issue. Users and administrators should update to the fixed kernel versions once available.

Description

A vulnerability in the Linux kernel's statmount functionality allowed reading the parent of an unmounted mount under mount_lock, potentially leading to dereferencing a mount that has already been freed. This issue arises because statmount_mnt_basic() reads the parent mount's IDs without proper synchronization when the mount has been unmounted but kept alive by a file descriptor. The flaw has been resolved in the Linux kernel.

References

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