VulnerabilityPublished 2 Nov 2026

CVE-2026-99241: Linux kernel · ntfs: take invalidate_lock in ntfs_filemap_page_mkwrite()

Source GCVE Database

Authoritative record:CVE-2026-99241· High

Not known to be exploited : upgrade to 57c0d5281666d150c73e56e6795a4eef3ede8693 or 0fecc393f2060e6bc25138df32cb923ec7071c6b soon.

Data as of 2 Nov 2026, 19:28 UTC

Severity

High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Patch: Available – fixed in 57c0d5281666d150c73e56e6795a4eef3ede8693, 0fecc393f2060e6bc25138df32cb923ec7071c6b

Exploitation evidence

Disclosed: evidence found.
CVE published 2 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 2 Nov 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.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), 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-p585-6wv8-qrvx

What to do

Upgrade Linux kernel to 57c0d5281666d150c73e56e6795a4eef3ede8693 or 0fecc393f2060e6bc25138df32cb923ec7071c6b.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 9c87959601e80b39a45250e362e6ddfec17cb0fa, < 57c0d5281666d150c73e56e6795a4eef3ede8693	Fixed in 57c0d5281666d150c73e56e6795a4eef3ede8693
LinuxLinux	Affected ≥ 9c87959601e80b39a45250e362e6ddfec17cb0fa, < 0fecc393f2060e6bc25138df32cb923ec7071c6b	Fixed in 0fecc393f2060e6bc25138df32cb923ec7071c6b
LinuxLinux	Affected =7.1	Fixed in–

AI-suggested

A fix has been implemented in the Linux kernel to take the invalidate_lock shared around iomap_page_mkwrite() in the NTFS driver, preventing the race condition. Users should update to a kernel version that includes this fix once available. Since this is a kernel-level fix, no additional mitigation steps are indicated.

Description

A race condition vulnerability in the Linux kernel's NTFS driver was fixed by ensuring proper locking in the ntfs_filemap_page_mkwrite() function. The flaw involved missing the use of mapping->invalidate_lock during page write faults, which could cause concurrent truncate or fallocate operations to corrupt pagecache and runlist data structures.

References

Community reviews

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