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Vulnerabilities

Vulnerability · CVE-2026-22983

In the Linux kernel, the following vulnerability has been resolved: net: do not write to msg_get_inq in callee NULL pointer dereference fix.

Published Jan 23, 2026 · catalog updated May 11, 2026 · Linux Linux

Last checked Nov 5, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-22983. EPSS is 0.12%. Act only if a listed version of Linux Linux is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
None0.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.12%
Remediation
Version ranges on file
Affected products
vendor Linux Linux 089e50f29eeec8eef6ae1450fc88138d719291cb <ffa2be496ef65055b28b39c6bd9a7d66943ee89a

In the Linux kernel, the following vulnerability has been resolved: net: do not write to msg_get_inq in callee NULL pointer dereference fix. msg_get_inq is an input field from caller to callee. Don't set it in the callee, as the caller may not clear it on struct reuse. This is a kernel-internal variant of msghdr only, and the only user does reinitialize the field. So this is not critical for that reason. But it is more robust to avoid the write, and slightly simpler code. And it fixes a bug, see below. Callers set msg_get_inq to request the input queue length to be returned in msg_inq. This is

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Linux Linux 089e50f29eeec8eef6ae1450fc88138d719291cb <ffa2be496ef65055b28b39c6bd9a7d66943ee89a089e50f29eeec8eef6ae1450fc88138d719291cb <ffa2be496ef65055b28b39c6bd9a7d66943ee89a

How to fix CVE-2026-22983

  • Upgrade

    CVE-2026-22983 lists a fix boundary at ffa2be496ef65055b28b39c6bd9a7d66943ee89a. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in 089e50f29eeec8eef6ae1450fc88138d719291cb <ffa2be496ef65055b28b39c6bd9a7d66943ee89a

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-22983. EPSS is 0.12%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux 089e50f29eeec8eef6ae1450fc88138d719291cb <ffa2be496ef65055b28b39c6bd9a7d66943ee89a 089e50f29eeec8eef6ae1450fc88138d719291cb <ffa2be496ef65055b28b39c6bd9a7d66943ee89a. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.12%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 23, 2026 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: net: do not write to msg_get_inq in callee NULL pointer dereference fix. msg_get_inq is an input field from caller to callee. Don't set it in the callee, as the caller may not clear it on struct reuse. This is a kernel-internal variant of msghdr only, and the only user does reinitialize the field. So this is not critical for that

  2. May 11, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: net: do not write to msg_get_inq in callee NULL pointer dereference fix. msg_get_inq is an input field from caller to callee. Don't set it in the callee, as the caller may not clear it on struct reuse. This is a kernel-internal variant of msghdr only, and the only user does reinitialize the field. So this is not critical for that

Sources

  • CVE.orgVulnerability recordCVE-2026-22983

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-22983

    30-day exploitation probability 0.12%

    first.org
  • EUVDVulnerability recordEUVD-2026-4320

    In the Linux kernel, the following vulnerability has been resolved: net: do not write to msg_get_inq in callee NULL pointer dereference fix. msg_get_inq is an input field from caller to callee. Don't set it in the callee, as the caller may not clear it on struct reuse. This is a

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 5, 2026
  • CVE.orgNov 4, 2026
  • EUVDNov 2, 2026