fkie_nvd - fkie_cve-2022-50266

fkie_cve-2022-50266

Vulnerability from fkie_nvd

Published

2025-09-15 15:15

Modified

2025-09-15 15:22

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: kprobes: Fix check for probe enabled in kill_kprobe() In kill_kprobe(), the check whether disarm_kprobe_ftrace() needs to be called always fails. This is because before that we set the KPROBE_FLAG_GONE flag for kprobe so that "!kprobe_disabled(p)" is always false. The disarm_kprobe_ftrace() call introduced by commit: 0cb2f1372baa ("kprobes: Fix NULL pointer dereference at kprobe_ftrace_handler") to fix the NULL pointer reference problem. When the probe is enabled, if we do not disarm it, this problem still exists. Fix it by putting the probe enabled check before setting the KPROBE_FLAG_GONE flag.

References

▼	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0c76ef3f26d5ef2ac2c21b47e7620cff35809fbb
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c909985dd0c0f74b61e3f8f0e04bf8aa9c8b97c7
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f20a067f13106565816b4b6a6b665b2088a63824

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nkprobes: Fix check for probe enabled in kill_kprobe()\n\nIn kill_kprobe(), the check whether disarm_kprobe_ftrace() needs to be\ncalled always fails. This is because before that we set the\nKPROBE_FLAG_GONE flag for kprobe so that \"!kprobe_disabled(p)\" is always\nfalse.\n\nThe disarm_kprobe_ftrace() call introduced by commit:\n\n  0cb2f1372baa (\"kprobes: Fix NULL pointer dereference at kprobe_ftrace_handler\")\n\nto fix the NULL pointer reference problem. When the probe is enabled, if\nwe do not disarm it, this problem still exists.\n\nFix it by putting the probe enabled check before setting the\nKPROBE_FLAG_GONE flag."
    }
  ],
  "id": "CVE-2022-50266",
  "lastModified": "2025-09-15T15:22:27.090",
  "metrics": {},
  "published": "2025-09-15T15:15:37.347",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0c76ef3f26d5ef2ac2c21b47e7620cff35809fbb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c909985dd0c0f74b61e3f8f0e04bf8aa9c8b97c7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f20a067f13106565816b4b6a6b665b2088a63824"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2022-50266 (GCVE-0-2022-50266)

Vulnerability from cvelistv5

Published

2025-09-15 14:21

Modified

2025-09-15 14:21

Severity ?

Summary

References

▼	URL	Tags
	https://git.kernel.org/stable/c/f20a067f13106565816b4b6a6b665b2088a63824
	https://git.kernel.org/stable/c/c909985dd0c0f74b61e3f8f0e04bf8aa9c8b97c7
	https://git.kernel.org/stable/c/0c76ef3f26d5ef2ac2c21b47e7620cff35809fbb

Impacted products

Vendor

Product

Version

▼

Linux

Version: 3031313eb3d549b7ad6f9fbcc52ba04412e3eb9e
Version: 3031313eb3d549b7ad6f9fbcc52ba04412e3eb9e
Version: 3031313eb3d549b7ad6f9fbcc52ba04412e3eb9e
Version: 3c5f8d371b7fef3e3714c4a062c7f3b4aa41d122
Version: 9b55d84deec88c02b053a819acf08a6d471dda02
Version: 2295608b44c91df767a5c68027f9c9e52ecb28e7
Version: ce7ff920092130f249b75f9fe177edb3362fefe8
Version: 3995f7a60feceba6c8f762f4aff3184f90a1291d
Version: 247c62ebdfae450bb76dd89cd4724df6be07df75

Linux

Version: 5.9

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/kprobes.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f20a067f13106565816b4b6a6b665b2088a63824",
              "status": "affected",
              "version": "3031313eb3d549b7ad6f9fbcc52ba04412e3eb9e",
              "versionType": "git"
            },
            {
              "lessThan": "c909985dd0c0f74b61e3f8f0e04bf8aa9c8b97c7",
              "status": "affected",
              "version": "3031313eb3d549b7ad6f9fbcc52ba04412e3eb9e",
              "versionType": "git"
            },
            {
              "lessThan": "0c76ef3f26d5ef2ac2c21b47e7620cff35809fbb",
              "status": "affected",
              "version": "3031313eb3d549b7ad6f9fbcc52ba04412e3eb9e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3c5f8d371b7fef3e3714c4a062c7f3b4aa41d122",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9b55d84deec88c02b053a819acf08a6d471dda02",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2295608b44c91df767a5c68027f9c9e52ecb28e7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ce7ff920092130f249b75f9fe177edb3362fefe8",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3995f7a60feceba6c8f762f4aff3184f90a1291d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "247c62ebdfae450bb76dd89cd4724df6be07df75",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/kprobes.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.9"
            },
            {
              "lessThan": "5.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.16",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.2",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.4.238",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.9.238",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.14.200",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.19.149",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.4.69",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.8.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nkprobes: Fix check for probe enabled in kill_kprobe()\n\nIn kill_kprobe(), the check whether disarm_kprobe_ftrace() needs to be\ncalled always fails. This is because before that we set the\nKPROBE_FLAG_GONE flag for kprobe so that \"!kprobe_disabled(p)\" is always\nfalse.\n\nThe disarm_kprobe_ftrace() call introduced by commit:\n\n  0cb2f1372baa (\"kprobes: Fix NULL pointer dereference at kprobe_ftrace_handler\")\n\nto fix the NULL pointer reference problem. When the probe is enabled, if\nwe do not disarm it, this problem still exists.\n\nFix it by putting the probe enabled check before setting the\nKPROBE_FLAG_GONE flag."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-15T14:21:02.529Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f20a067f13106565816b4b6a6b665b2088a63824"
        },
        {
          "url": "https://git.kernel.org/stable/c/c909985dd0c0f74b61e3f8f0e04bf8aa9c8b97c7"
        },
        {
          "url": "https://git.kernel.org/stable/c/0c76ef3f26d5ef2ac2c21b47e7620cff35809fbb"
        }
      ],
      "title": "kprobes: Fix check for probe enabled in kill_kprobe()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50266",
    "datePublished": "2025-09-15T14:21:02.529Z",
    "dateReserved": "2025-09-15T13:58:00.975Z",
    "dateUpdated": "2025-09-15T14:21:02.529Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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