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MediumFix available

posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime()

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime() If get_clock_desc() succeeds, it calls fget() for the clockid's fd, and get the clk->rwsem read lock, so the error path should release the lock to make the lock balance and fput the clockid's fd to make the refcount balance and release the fd related resource. However the below commit left the error path locked behind resulting in unbalanced locking. Check timespec64_valid_strict() before get_clock_desc() to fix it, because the "ts" is not changed after that. [pabeni@redhat.com: fixed commit message typo]

Products
Kernel
Affected versions
Not specified
Fixed versions
5.10.229, 5.15.170, 6.1.115, 6.11.6, 6.6.59
CVEs
CVE-2024-50210
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 15:14 UTC · Revision 1

Source evidence

posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime()

core-osv · Original source

Published 8 Nov 2024, 06:08 UTC

In the Linux kernel, the following vulnerability has been resolved: posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime() If get_clock_desc() succeeds, it calls fget() for the clockid's fd, and get the clk->rwsem read lock, so the error path should release the lock to make the lock balance and fput the clockid's fd to make the refcount balance and release the fd related resource. However the below commit left the error path locked behind resulting in unbalanced locking. Check timespec64_valid_strict() before get_clock_desc() to fix it, because the "ts" is not changed after that. [pabeni@redhat.com: fixed commit message typo]

osv:CVE-2024-50210

Kernel

Fixed versions: 5.10.229, 5.15.170, 6.1.115, 6.6.59, 6.11.6

Complete source record
{
  "id": "cad85015517374e4697c5e46060e919324df53371adf1cf8d89a5985a8c375ac",
  "url": "https://osv.dev/vulnerability/CVE-2024-50210",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime() If get_clock_desc() succeeds, it calls fget() for the clockid's fd, and get the clk->rwsem read lock, so the error path should release the lock to make the lock balance and fput the clockid's fd to make the refcount balance and release the fd related resource. However the below commit left the error path locked behind resulting in unbalanced locking. Check timespec64_valid_strict() before get_clock_desc() to fix it, because the \"ts\" is not changed after that. [pabeni@redhat.com: fixed commit message typo]",
    "evidence": "osv:CVE-2024-50210",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "value": "5.10.229",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.170",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.115",
            "evidence": "/affected/1/ranges"
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          {
            "value": "6.6.59",
            "evidence": "/affected/1/ranges"
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            "evidence": "/affected/1/ranges"
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        "affected_versions": []
      }
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    "severity": "medium",
    "structured": {
      "id": "CVE-2024-50210",
      "aliases": [
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      ],
      "metrics": [
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          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
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        },
        {
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          },
          "database_specific": {
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      ],
      "modified": "2026-10-28T02:30:37.102524791Z",
      "provider": "osv",
      "references": [
        "https://cert-portal.siemens.com/productcert/html/ssa-265688.html",
        "https://git.kernel.org/stable/c/1ba33b327c3f88a7baee598979d73ab5b44d41cc",
        "https://git.kernel.org/stable/c/5f063bbf1ee6b01611c016b54e050a41506eb794",
        "https://git.kernel.org/stable/c/6e62807c7fbb3c758d233018caf94dfea9c65dbd",
        "https://git.kernel.org/stable/c/a8219446b95a859488feaade674d13f9efacfa32",
        "https://git.kernel.org/stable/c/b27330128eca25179637c1816d5a72d6cc408c66",
        "https://git.kernel.org/stable/c/c7fcfdba35abc9f39b83080c2bce398dad13a943",
        "https://git.kernel.org/stable/c/d005400262ddaf1ca1666bbcd1acf42fe81d57ce",
        "https://git.kernel.org/stable/c/e56e0ec1b79f5a6272c6e78b36e9d593aa0449af",
        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50210.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-50210",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50210.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-50210",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504056,
  "published_at": "2024-11-08T06:08:00.319+00:00"
}