Vulnerability-Lookup

GHSA-XC6W-XCGH-JJHW

Vulnerability from github – Published: 2026-03-25 12:30 – Updated: 2026-03-25 12:30

Details

In the Linux kernel, the following vulnerability has been resolved:

smb: client: fix oops due to uninitialised var in smb2_unlink()

If SMB2_open_init() or SMB2_close_init() fails (e.g. reconnect), the iovs set @rqst will be left uninitialised, hence calling SMB2_open_free(), SMB2_close_free() or smb2_set_related() on them will oops.

Fix this by initialising @close_iov and @open_iov before setting them in @rqst.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23282"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-25T11:16:22Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix oops due to uninitialised var in smb2_unlink()\n\nIf SMB2_open_init() or SMB2_close_init() fails (e.g. reconnect), the\niovs set @rqst will be left uninitialised, hence calling\nSMB2_open_free(), SMB2_close_free() or smb2_set_related() on them will\noops.\n\nFix this by initialising @close_iov and @open_iov before setting them\nin @rqst.",
  "id": "GHSA-xc6w-xcgh-jjhw",
  "modified": "2026-03-25T12:30:21Z",
  "published": "2026-03-25T12:30:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23282"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/048efe129a297256d3c2088cf8d79515ff5ec864"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/86163b98891aa9800f6103252e5acc7bb98afb91"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dc710c87af3341554d02d634ada1d2036c49a94a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-23282 (GCVE-0-2026-23282)

Vulnerability from cvelistv5 – Published: 2026-03-25 10:26 – Updated: 2026-03-25 10:26

Title

smb: client: fix oops due to uninitialised var in smb2_unlink()

Summary

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix oops due to uninitialised var in smb2_unlink() If SMB2_open_init() or SMB2_close_init() fails (e.g. reconnect), the iovs set @rqst will be left uninitialised, hence calling SMB2_open_free(), SMB2_close_free() or smb2_set_related() on them will oops. Fix this by initialising @close_iov and @open_iov before setting them in @rqst.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/86163b98891aa9800…
	https://git.kernel.org/stable/c/dc710c87af3341554…
	https://git.kernel.org/stable/c/048efe129a297256d…

Impacted products

Vendor

Product

Version

Linux

Affected: 1cf9f2a6a544288516a7b9e883a48eba6246bcf2 , < 86163b98891aa9800f6103252e5acc7bb98afb91 (git)
Affected: 1cf9f2a6a544288516a7b9e883a48eba6246bcf2 , < dc710c87af3341554d02d634ada1d2036c49a94a (git)
Affected: 1cf9f2a6a544288516a7b9e883a48eba6246bcf2 , < 048efe129a297256d3c2088cf8d79515ff5ec864 (git)

Linux

Affected: 6.17
Unaffected: 0 , < 6.17 (semver)
Unaffected: 6.18.17 , ≤ 6.18.* (semver)
Unaffected: 6.19.7 , ≤ 6.19.* (semver)
Unaffected: 7.0-rc3 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/smb2inode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "86163b98891aa9800f6103252e5acc7bb98afb91",
              "status": "affected",
              "version": "1cf9f2a6a544288516a7b9e883a48eba6246bcf2",
              "versionType": "git"
            },
            {
              "lessThan": "dc710c87af3341554d02d634ada1d2036c49a94a",
              "status": "affected",
              "version": "1cf9f2a6a544288516a7b9e883a48eba6246bcf2",
              "versionType": "git"
            },
            {
              "lessThan": "048efe129a297256d3c2088cf8d79515ff5ec864",
              "status": "affected",
              "version": "1cf9f2a6a544288516a7b9e883a48eba6246bcf2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/smb2inode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.17"
            },
            {
              "lessThan": "6.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0-rc3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.17",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.7",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0-rc3",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix oops due to uninitialised var in smb2_unlink()\n\nIf SMB2_open_init() or SMB2_close_init() fails (e.g. reconnect), the\niovs set @rqst will be left uninitialised, hence calling\nSMB2_open_free(), SMB2_close_free() or smb2_set_related() on them will\noops.\n\nFix this by initialising @close_iov and @open_iov before setting them\nin @rqst."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-25T10:26:42.495Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/86163b98891aa9800f6103252e5acc7bb98afb91"
        },
        {
          "url": "https://git.kernel.org/stable/c/dc710c87af3341554d02d634ada1d2036c49a94a"
        },
        {
          "url": "https://git.kernel.org/stable/c/048efe129a297256d3c2088cf8d79515ff5ec864"
        }
      ],
      "title": "smb: client: fix oops due to uninitialised var in smb2_unlink()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23282",
    "datePublished": "2026-03-25T10:26:42.495Z",
    "dateReserved": "2026-01-13T15:37:45.992Z",
    "dateUpdated": "2026-03-25T10:26:42.495Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-XC6W-XCGH-JJHW

CVE-2026-23282 (GCVE-0-2026-23282)

Tags

Sightings

Nomenclature