LiveActive security incident?Get immediate response
CVE Record

CVE-2022-50460: cifs: Fix xid leak in cifs_flock()

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix xid leak in cifs_flock() If not flock, before return -ENOLCK, should free the xid, otherwise, the xid will be leaked.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2022-50460 is a Linux kernel CIFS client bug where an internal transaction ID is not released on one error path. The public record does not provide CVSS, confirmed impact, or exploitation evidence. Treat it as a kernel maintenance issue for systems that mount SMB/CIFS shares, not as an emergency without more vendor context.

Executive priority

Low immediate urgency unless CIFS-heavy Linux systems are business-critical or vendor advisories raise severity. Schedule remediation through normal kernel patch cycles, with priority for file services, backup clients, and servers mounting SMB shares.

Technical view

The resolved kernel change fixes an xid leak in cifs_flock(). If the operation is not flock and returns -ENOLCK, the xid was not freed. The CVE record lists Linux kernel affected versions but lacks full range semantics, CVSS, CWE, and exploitability details. Stable kernel commits are referenced as fixes.

Likely exposure

Exposure is most relevant to Linux systems using the kernel CIFS/SMB client and file locking paths. Systems not using CIFS mounts are less likely to encounter the bug. The provided affected-version data is incomplete, so validate against your distribution kernel advisory or stable kernel commit history.

Exploitation context

No active exploitation is indicated in the provided sources, and the CVE is not marked KEV. The source text describes a resource leak on an error path, but does not state whether it is remotely triggerable, locally triggerable, or causes denial of service.

Researcher notes

Evidence is limited to the CVE record and Linux stable commits. The bug is a missing xid free before returning -ENOLCK in cifs_flock(). No CVSS, CWE, proof of exploitation, or detailed attack prerequisites are provided in the public bundle.

Mitigation direction

  • Check your Linux distribution advisory for CVE-2022-50460 coverage.
  • Update to a vendor kernel that includes the referenced stable fixes.
  • Prioritize systems that mount SMB/CIFS shares or rely on CIFS file locking.
  • If no vendor fix is available, monitor vendor guidance rather than applying unreviewed patches.

Validation and detection

  • Inventory Linux hosts using CIFS or SMB kernel mounts.
  • Compare running kernel packages with your vendor’s fixed versions.
  • Review kernel changelogs for the referenced cifs_flock xid leak fix.
  • Confirm vulnerability scanner findings against distribution backport notes.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · low confidence lookup

CVE-2022-50460 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
3Timeline events
0ADP providers
5Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxd0677992d2af3d65f1c1c21de3323d09d4891537, d0677992d2af3d65f1c1c21de3323d09d4891537, d0677992d2af3d65f1c1c21de3323d09d4891537, d0677992d2af3d65f1c1c21de3323d09d4891537unaffected
LinuxLinux5.5, 0, 5.10.152, 5.15.76, 6.0.6, 6.1affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.