ghsa-6rh8-ww5v-vx2c
Vulnerability from github
Published
2024-09-27 15:30
Modified
2024-10-02 15:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

rtmutex: Drop rt_mutex::wait_lock before scheduling

rt_mutex_handle_deadlock() is called with rt_mutex::wait_lock held. In the good case it returns with the lock held and in the deadlock case it emits a warning and goes into an endless scheduling loop with the lock held, which triggers the 'scheduling in atomic' warning.

Unlock rt_mutex::wait_lock in the dead lock case before issuing the warning and dropping into the schedule for ever loop.

[ tglx: Moved unlock before the WARN(), removed the pointless comment, massaged changelog, added Fixes tag ]

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-46829"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-27T13:15:15Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nrtmutex: Drop rt_mutex::wait_lock before scheduling\n\nrt_mutex_handle_deadlock() is called with rt_mutex::wait_lock held.  In the\ngood case it returns with the lock held and in the deadlock case it emits a\nwarning and goes into an endless scheduling loop with the lock held, which\ntriggers the \u0027scheduling in atomic\u0027 warning.\n\nUnlock rt_mutex::wait_lock in the dead lock case before issuing the warning\nand dropping into the schedule for ever loop.\n\n[ tglx: Moved unlock before the WARN(), removed the pointless comment,\n  \tmassaged changelog, added Fixes tag ]",
  "id": "GHSA-6rh8-ww5v-vx2c",
  "modified": "2024-10-02T15:30:37Z",
  "published": "2024-09-27T15:30:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-46829"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1401da1486dc1cdbef6025fd74a3977df3a3e5d0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/432efdbe7da5ecfcbc0c2180cfdbab1441752a38"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6a976e9a47e8e5b326de671811561cab12e6fb1f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/85f03ca98e07cd0786738b56ae73740bce0ac27f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/93f44655472d9cd418293d328f9d141ca234ad83"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a92d81c9efec9280681c27a2c0a963fd0f1338e0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d33d26036a0274b472299d7dcdaa5fb34329f91b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f13b5afc5c4889569d84c3011ce449f61fccfb28"
    }
  ],
  "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"
    }
  ]
}


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