Security readout for executives and security teams
Plain-English summary
CVE-2022-50841 is a Linux kernel NTFS3 filesystem parsing flaw. A specially crafted NTFS filesystem could cause kernel out-of-bounds memory access when mounted, leading to a crash and possible memory corruption. Business risk is highest where systems automatically mount removable or untrusted NTFS media.
Executive priority
Prioritize patching systems that process removable media, user-supplied disk images, forensic images, or shared storage. For typical servers that never mount untrusted NTFS, urgency is lower but still should follow normal kernel update cycles.
Technical view
The ntfs3 driver could overflow an offset calculation while parsing MFT attributes with very large attribute sizes. The flawed next-attribute pointer calculation could bypass used-size checks and produce out-of-bounds kernel memory read/write. The source trace shows a kernel page fault during mount in mi_enum_attr.
Likely exposure
Linux systems using affected kernels with the ntfs3 driver and mounting NTFS filesystems are the likely exposure. The bundle identifies Linux kernel 5.15, 6.0, 6.1, and 6.2-era affected ranges, with stable kernel commits referenced as fixes.
Exploitation context
No active exploitation is indicated in the provided sources, and this CVE is not listed as KEV in the bundle. Practical triggering appears to require a malformed NTFS filesystem being mounted, such as via removable media, disk images, or automated mounting workflows.
Researcher notes
Evidence is limited to the CVE record and Linux stable commits. The bug is in fs/ntfs3 attribute enumeration: offset plus attribute size can overflow before bounds checking. The source includes an oops trace on mount, but no CVSS, CWE, proof-of-concept status, or exploitation-in-the-wild evidence.
Mitigation direction
- Update to a vendor kernel containing the referenced ntfs3 overflow check fix.
- Check distribution advisories for backported fixes matching your kernel package.
- Restrict automatic mounting of untrusted NTFS removable media or disk images.
- Avoid using ntfs3 on untrusted filesystems until patched, if operationally feasible.
Validation and detection
- Inventory Linux systems with kernels in the affected ranges.
- Confirm installed kernel packages include vendor fixes or referenced stable commits.
- Review automount policies for removable NTFS media and disk images.
- Check kernel logs for ntfs3 or mi_enum_attr crashes after mount attempts.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2022-50841 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/d4489ba8fb806e07b43eecca5e9af5865d94cbf6CVE reference
- https://git.kernel.org/stable/c/a1f0b873cf6ac1f00a749707d866494ed0708978CVE reference
- https://git.kernel.org/stable/c/0bb9f93ba63acfdb7c363d9f9fc2199fc6fa913dCVE reference
- https://git.kernel.org/stable/c/e19c6277652efba203af4ecd8eed4bd30a0054c9CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.