LiveActive security incident?Get immediate response
CVE Record

CVE-2022-50879: objtool: Fix SEGFAULT

In the Linux kernel, the following vulnerability has been resolved: objtool: Fix SEGFAULT find_insn() will return NULL in case of failure. Check insn in order to avoid a kernel Oops for NULL pointer dereference.

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

Security readout for executives and security teams

Plain-English summary

CVE-2022-50879 is a Linux kernel issue fixed by adding a missing NULL check in objtool’s find_insn() handling. Without the check, a failure path can trigger a NULL pointer dereference and Oops/segfault. The public record does not provide CVSS, CWE, exploitability, or business impact detail.

Executive priority

Track through normal Linux patch governance unless vendor guidance raises severity. There is no sourced evidence of active exploitation or a defined CVSS score, but kernel issues still warrant timely validation and patch planning.

Technical view

The resolved bug is in Linux kernel objtool. find_insn() can return NULL; subsequent use without validation could dereference NULL. Stable kernel commits add a check for insn. The source bundle lists Linux versions including 4.17 through 6.2 as affected, with stable commits referenced as remediation.

Likely exposure

Organizations building, maintaining, or running affected Linux kernel versions may be exposed. Distribution kernels require mapping to vendor backports. Sources do not identify specific distributions, configurations, or remote attack surfaces.

Exploitation context

No CISA KEV listing, exploit reports, or public exploitation evidence are provided in the source bundle. The available information describes a correctness fix for a NULL pointer dereference, not an attack path.

Researcher notes

Key uncertainty is practical exploitability. The record names objtool and a NULL dereference from unchecked find_insn() failure, but lacks trigger conditions, attack prerequisites, and impact scope. Avoid assuming remote or local exploitation without additional vendor evidence.

Mitigation direction

  • Identify Linux kernel versions in use, including distribution backports.
  • Review vendor advisories for CVE-2022-50879 applicability and fixed packages.
  • Update to a kernel containing the referenced stable fix commits when applicable.
  • Prioritize systems where kernel build tooling or affected kernel branches are relevant.

Validation and detection

  • Inventory kernel versions and vendor package release metadata.
  • Check whether vendor kernels include the referenced stable commits.
  • Confirm scanners map CVE-2022-50879 to your kernel packages accurately.
  • Document exceptions where vendors mark shipped kernels as not affected.
Prepared
Confidence
medium
Sources
8

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-2022-50879 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
0Timeline events
0ADP providers
7Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux13810435b9a7014fb92eb715f77da488f3b65b99, 13810435b9a7014fb92eb715f77da488f3b65b99, 13810435b9a7014fb92eb715f77da488f3b65b99, 13810435b9a7014fb92eb715f77da488f3b65b99, 13810435b9a7014fb92eb715f77da488f3b65b99, 13810435b9a7014fb92eb715f77da488f3b65b99, 1f7f88aa4df593db34dd1d6345213f20888687fb, 1bea53df12c47517b6e487e6fed34d0c05d42905, c6f589eed3b5a9b73b3be76a719917cc905bab0eunaffected
LinuxLinux4.17, 0, 5.4.229, 5.10.163, 5.15.87, 6.0.17, 6.1.3, 6.2affected
Weakness

CWE details

No CWE listed

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