CVE-2026-31693 (GCVE-0-2026-31693)

Vulnerability from cvelistv5 – Published: 2026-04-30 11:47 – Updated: 2026-08-05 12:24
VLAI
Title
cifs: some missing initializations on replay
Summary
In the Linux kernel, the following vulnerability has been resolved: cifs: some missing initializations on replay In several places in the code, we have a label to signify the start of the code where a request can be replayed if necessary. However, some of these places were missing the necessary reinitializations of certain local variables before replay. This change makes sure that these variables get initialized after the label.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 433042a91f9373241307725b52de573933ffedbf , < c854ab481ece4b3e5f4c2e8b22824f015ff874a5 (git)
Affected: 4f1fffa2376922f3d1d506e49c0fd445b023a28e , < 1d731e512134495e0ef490ade0e4d91dc0d515ec (git)
Affected: 4f1fffa2376922f3d1d506e49c0fd445b023a28e , < 7c9ce68192eef14c777cb6ce17155d2eb2431aea (git)
Affected: 4f1fffa2376922f3d1d506e49c0fd445b023a28e , < c99e160938b627f6f28edee930e8abc157e84386 (git)
Affected: 4f1fffa2376922f3d1d506e49c0fd445b023a28e , < 14f66f44646333d2bfd7ece36585874fd72f8286 (git)
Affected: 6.6.32 , < 6.6.128 (semver)
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Linux Linux Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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    "redhat_vex": {
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      "current_release_date": "2026-07-02T12:48:11+00:00",
      "cve": "CVE-2026-31693",
      "id": "CVE-2026-31693",
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      "product_status:known_affected": "232",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: cifs: some missing initializations on replay",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31693.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-28T17:18:50Z",
      "cve": "CVE-2026-31693",
      "id": "CVE-2026-31693",
      "initial_release_date": "2026-05-01T02:05:10Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "441",
      "product_status:known_not_affected": "186",
      "product_status:recommended": "294",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-31693",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-31693.json",
      "version": "17"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.