Security readout for executives and security teams
Plain-English summary
This Linux kernel flaw can crash a system during poweroff after a failed RAID1 array start involving only inactive disks. The business impact is availability: affected servers using Linux software RAID1 could experience kernel errors in a narrow storage-failure scenario. No source provided indicates active exploitation.
Executive priority
Treat as a targeted reliability fix for Linux RAID1 servers, not an internet-scale emergency. Patch during normal kernel maintenance, with higher priority for storage-critical systems or environments that frequently rebuild or recover RAID arrays.
Technical view
The md/raid1 code failed to stop the mdx_raid1 thread when RAID1 array run failed. Resources could be freed while the thread remained active, leading to a NULL pointer dereference in md_check_recovery during poweroff. The fix unregisters the thread before raid1_free().
Likely exposure
Exposure is most relevant to Linux systems using md RAID1. The CVE record lists multiple Linux stable versions and commit references, but distribution-specific affected and fixed package versions require vendor confirmation.
Exploitation context
The described trigger requires assembling a RAID1 array with only inactive disks, then reaching poweroff after the failed run. This appears local and configuration-dependent. KEV is false, and the provided sources do not report active exploitation or a public exploit.
Researcher notes
The source evidence identifies root cause and fix direction but provides no CVSS, CWE, exploitability assessment, or distribution mapping. Affected version data in the CVE record is broad; validate against downstream backports before declaring exposure.
Mitigation direction
- Update to a Linux kernel or vendor package containing the referenced stable fixes.
- Check distribution advisories for backported fixes and exact package names.
- Avoid operational procedures that assemble RAID1 arrays from inactive disks only until patched.
- Prioritize systems using md RAID1 in production storage paths.
Validation and detection
- Inventory Linux hosts using md RAID1.
- Compare running kernel builds against vendor fixed versions or referenced kernel commits.
- Review kernel logs for md0_raid1, md_check_recovery, or NULL pointer dereference during shutdown.
- Confirm the fix is present through vendor changelogs or kernel source history.
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-2022-50715 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/d684ceb77311410aeaf5189d321f9f564838c49aCVE reference
- https://git.kernel.org/stable/c/110f14a7b2eb5b8aa9df5af2d629524f2a07d543CVE reference
- https://git.kernel.org/stable/c/0c7c7468c3ae222e297b7dc74d6ccb69c4d0183cCVE reference
- https://git.kernel.org/stable/c/19d5a0e17aba92b10d895e40ec782768cf00da23CVE reference
- https://git.kernel.org/stable/c/10d713532ffc67b13df61ed9c138a8ce0a186236CVE reference
- https://git.kernel.org/stable/c/a3cc41e05e8af340a2a759b168c29fffdb9194ebCVE reference
- https://git.kernel.org/stable/c/22be44212cad8be96860346882d8e694b0b437b6CVE reference
- https://git.kernel.org/stable/c/d26364596db8f8b55277b2afb3952e05a4057a21CVE reference
- https://git.kernel.org/stable/c/b611ad14006e5be2170d9e8e611bf49dff288911CVE 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.