CVE-2026-31480 (GCVE-0-2026-31480)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:54 – Updated: 2026-04-22 13:54
VLAI?
Title
tracing: Fix potential deadlock in cpu hotplug with osnoise
Summary
In the Linux kernel, the following vulnerability has been resolved: tracing: Fix potential deadlock in cpu hotplug with osnoise The following sequence may leads deadlock in cpu hotplug: task1 task2 task3 ----- ----- ----- mutex_lock(&interface_lock) [CPU GOING OFFLINE] cpus_write_lock(); osnoise_cpu_die(); kthread_stop(task3); wait_for_completion(); osnoise_sleep(); mutex_lock(&interface_lock); cpus_read_lock(); [DEAD LOCK] Fix by swap the order of cpus_read_lock() and mutex_lock(&interface_lock).
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: bce29ac9ce0bb0b0b146b687ab978378c21e9078 , < cf929c21eeed5bd39873fb14bfdfff963fa6f1da (git)
Affected: bce29ac9ce0bb0b0b146b687ab978378c21e9078 , < 7aa095ce7d224308cb6979956f0de8607df93d4f (git)
Affected: bce29ac9ce0bb0b0b146b687ab978378c21e9078 , < ef41a85a55022e27cdaebf22a6676910b66f65aa (git)
Affected: bce29ac9ce0bb0b0b146b687ab978378c21e9078 , < 03474a01c199de17a8e2d39b51df6beb9c76e831 (git)
Affected: bce29ac9ce0bb0b0b146b687ab978378c21e9078 , < f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7 (git)
Affected: bce29ac9ce0bb0b0b146b687ab978378c21e9078 , < 7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9f (git)
Affected: bce29ac9ce0bb0b0b146b687ab978378c21e9078 , < 1f9885732248d22f788e4992c739a98c88ab8a55 (git)
Create a notification for this product.
    Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.168 , ≤ 6.1.* (semver)
Unaffected: 6.6.131 , ≤ 6.6.* (semver)
Unaffected: 6.12.80 , ≤ 6.12.* (semver)
Unaffected: 6.18.21 , ≤ 6.18.* (semver)
Unaffected: 6.19.11 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/trace/trace_osnoise.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "cf929c21eeed5bd39873fb14bfdfff963fa6f1da",
              "status": "affected",
              "version": "bce29ac9ce0bb0b0b146b687ab978378c21e9078",
              "versionType": "git"
            },
            {
              "lessThan": "7aa095ce7d224308cb6979956f0de8607df93d4f",
              "status": "affected",
              "version": "bce29ac9ce0bb0b0b146b687ab978378c21e9078",
              "versionType": "git"
            },
            {
              "lessThan": "ef41a85a55022e27cdaebf22a6676910b66f65aa",
              "status": "affected",
              "version": "bce29ac9ce0bb0b0b146b687ab978378c21e9078",
              "versionType": "git"
            },
            {
              "lessThan": "03474a01c199de17a8e2d39b51df6beb9c76e831",
              "status": "affected",
              "version": "bce29ac9ce0bb0b0b146b687ab978378c21e9078",
              "versionType": "git"
            },
            {
              "lessThan": "f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7",
              "status": "affected",
              "version": "bce29ac9ce0bb0b0b146b687ab978378c21e9078",
              "versionType": "git"
            },
            {
              "lessThan": "7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9f",
              "status": "affected",
              "version": "bce29ac9ce0bb0b0b146b687ab978378c21e9078",
              "versionType": "git"
            },
            {
              "lessThan": "1f9885732248d22f788e4992c739a98c88ab8a55",
              "status": "affected",
              "version": "bce29ac9ce0bb0b0b146b687ab978378c21e9078",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/trace/trace_osnoise.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.14"
            },
            {
              "lessThan": "5.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.203",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.168",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.131",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.80",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.21",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.203",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.168",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.131",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.80",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.21",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.11",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix potential deadlock in cpu hotplug with osnoise\n\nThe following sequence may leads deadlock in cpu hotplug:\n\n    task1        task2        task3\n    -----        -----        -----\n\n mutex_lock(\u0026interface_lock)\n\n            [CPU GOING OFFLINE]\n\n            cpus_write_lock();\n            osnoise_cpu_die();\n              kthread_stop(task3);\n                wait_for_completion();\n\n                      osnoise_sleep();\n                        mutex_lock(\u0026interface_lock);\n\n cpus_read_lock();\n\n [DEAD LOCK]\n\nFix by swap the order of cpus_read_lock() and mutex_lock(\u0026interface_lock)."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-22T13:54:07.566Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/cf929c21eeed5bd39873fb14bfdfff963fa6f1da"
        },
        {
          "url": "https://git.kernel.org/stable/c/7aa095ce7d224308cb6979956f0de8607df93d4f"
        },
        {
          "url": "https://git.kernel.org/stable/c/ef41a85a55022e27cdaebf22a6676910b66f65aa"
        },
        {
          "url": "https://git.kernel.org/stable/c/03474a01c199de17a8e2d39b51df6beb9c76e831"
        },
        {
          "url": "https://git.kernel.org/stable/c/f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7"
        },
        {
          "url": "https://git.kernel.org/stable/c/7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9f"
        },
        {
          "url": "https://git.kernel.org/stable/c/1f9885732248d22f788e4992c739a98c88ab8a55"
        }
      ],
      "title": "tracing: Fix potential deadlock in cpu hotplug with osnoise",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31480",
    "datePublished": "2026-04-22T13:54:07.566Z",
    "dateReserved": "2026-03-09T15:48:24.100Z",
    "dateUpdated": "2026-04-22T13:54:07.566Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-31480\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-04-22T14:16:45.170\",\"lastModified\":\"2026-04-22T14:16:45.170\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntracing: Fix potential deadlock in cpu hotplug with osnoise\\n\\nThe following sequence may leads deadlock in cpu hotplug:\\n\\n    task1        task2        task3\\n    -----        -----        -----\\n\\n mutex_lock(\u0026interface_lock)\\n\\n            [CPU GOING OFFLINE]\\n\\n            cpus_write_lock();\\n            osnoise_cpu_die();\\n              kthread_stop(task3);\\n                wait_for_completion();\\n\\n                      osnoise_sleep();\\n                        mutex_lock(\u0026interface_lock);\\n\\n cpus_read_lock();\\n\\n [DEAD LOCK]\\n\\nFix by swap the order of cpus_read_lock() and mutex_lock(\u0026interface_lock).\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/03474a01c199de17a8e2d39b51df6beb9c76e831\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/1f9885732248d22f788e4992c739a98c88ab8a55\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7aa095ce7d224308cb6979956f0de8607df93d4f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cf929c21eeed5bd39873fb14bfdfff963fa6f1da\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ef41a85a55022e27cdaebf22a6676910b66f65aa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.