CVE-2026-99241: Linux kernel · ntfs: take invalidate_lock in ntfs_filemap_page_mkwrite()
Affects Linux kernelSource CVE Database V5
Not known to be exploited : upgrade to 57c0d5281666d150c73e56e6795a4eef3ede8693 or 0fecc393f2060e6bc25138df32cb923ec7071c6b soon.
Data as of 2 Nov 2026, 16:30 UTC
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.
What to do
Upgrade Linux kernel to 57c0d5281666d150c73e56e6795a4eef3ede8693 or 0fecc393f2060e6bc25138df32cb923ec7071c6b.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix has been implemented in the Linux kernel by taking the invalidate_lock shared in ntfs_filemap_page_mkwrite(). Users should update to the fixed kernel versions identified by the commits 57c0d5281666d150c73e56e6795a4eef3ede8693 and 0fecc393f2060e6bc25138df32cb923ec7071c6b. No additional mitigation is required beyond applying these updates.
Description
A race condition vulnerability in the Linux kernel's NTFS driver was fixed by ensuring the invalidate_lock is taken during the ntfs_filemap_page_mkwrite() function. Without this lock, concurrent truncate or fallocate operations could interfere with pagecache invalidation and runlist rewriting, potentially causing data corruption or instability. The fix involves taking the invalidate_lock shared around iomap_page_mkwrite() to prevent these races.