Vulnerability-Lookup

GHSA-JFXC-PHGJ-XGP4

Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-13 21:31

Details

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

net/sunrpc: fix potential memory leaks in rpc_sysfs_xprt_state_change()

The issue happens on some error handling paths. When the function fails to grab the object xprt, it simply returns 0, forgetting to decrease the reference count of another object xps, which is increased by rpc_sysfs_xprt_kobj_get_xprt_switch(), causing refcount leaks. Also, the function forgets to check whether xps is valid before using it, which may result in NULL-dereferencing issues.

Fix it by adding proper error handling code when either xprt or xps is NULL.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50046"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:33Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sunrpc: fix potential memory leaks in rpc_sysfs_xprt_state_change()\n\nThe issue happens on some error handling paths. When the function\nfails to grab the object `xprt`, it simply returns 0, forgetting to\ndecrease the reference count of another object `xps`, which is\nincreased by rpc_sysfs_xprt_kobj_get_xprt_switch(), causing refcount\nleaks. Also, the function forgets to check whether `xps` is valid\nbefore using it, which may result in NULL-dereferencing issues.\n\nFix it by adding proper error handling code when either `xprt` or\n`xps` is NULL.",
  "id": "GHSA-jfxc-phgj-xgp4",
  "modified": "2025-11-13T21:31:18Z",
  "published": "2025-06-18T12:30:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50046"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/76fbeb1662b1c56514325118a07fba74dc4c79fe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bfc48f1b0505ffcb03a6d749139b7577d6b81ae0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c0434f0e058648649250b8ed6078b66d773de723"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-50046 (GCVE-0-2022-50046)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:01 – Updated: 2026-05-11 19:11

Title

net/sunrpc: fix potential memory leaks in rpc_sysfs_xprt_state_change()

Summary

In the Linux kernel, the following vulnerability has been resolved: net/sunrpc: fix potential memory leaks in rpc_sysfs_xprt_state_change() The issue happens on some error handling paths. When the function fails to grab the object `xprt`, it simply returns 0, forgetting to decrease the reference count of another object `xps`, which is increased by rpc_sysfs_xprt_kobj_get_xprt_switch(), causing refcount leaks. Also, the function forgets to check whether `xps` is valid before using it, which may result in NULL-dereferencing issues. Fix it by adding proper error handling code when either `xprt` or `xps` is NULL.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7033 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/c0434f0e058648649…
https://git.kernel.org/stable/c/76fbeb1662b1c5651…
https://git.kernel.org/stable/c/bfc48f1b0505ffcb0…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b , < c0434f0e058648649250b8ed6078b66d773de723 (git) Affected: 5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b , < 76fbeb1662b1c56514325118a07fba74dc4c79fe (git) Affected: 5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b , < bfc48f1b0505ffcb03a6d749139b7577d6b81ae0 (git)
Linux	Linux	Affected: 5.14 Unaffected: 0 , < 5.14 (semver) Unaffected: 5.15.63 , ≤ 5.15.* (semver) Unaffected: 5.19.4 , ≤ 5.19.* (semver) Unaffected: 6.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/sunrpc/sysfs.c"
          ],
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          "vendor": "Linux",
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              "status": "affected",
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              "status": "affected",
              "version": "5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b",
              "versionType": "git"
            },
            {
              "lessThan": "bfc48f1b0505ffcb03a6d749139b7577d6b81ae0",
              "status": "affected",
              "version": "5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b",
              "versionType": "git"
            }
          ]
        },
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          ],
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.14"
            },
            {
              "lessThan": "5.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "5.15.63",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "5.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                }
              ],
              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sunrpc: fix potential memory leaks in rpc_sysfs_xprt_state_change()\n\nThe issue happens on some error handling paths. When the function\nfails to grab the object `xprt`, it simply returns 0, forgetting to\ndecrease the reference count of another object `xps`, which is\nincreased by rpc_sysfs_xprt_kobj_get_xprt_switch(), causing refcount\nleaks. Also, the function forgets to check whether `xps` is valid\nbefore using it, which may result in NULL-dereferencing issues.\n\nFix it by adding proper error handling code when either `xprt` or\n`xps` is NULL."
        }
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      "providerMetadata": {
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    "dateReserved": "2025-06-18T10:57:27.401Z",
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}

Sightings

Author	Source	Type	Date	Other

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.

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