ghsa-xv4r-xrmj-c649
Vulnerability from github
Published
2024-12-27 15:31
Modified
2025-10-08 15:32
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:

s390/stacktrace: Use break instead of return statement

arch_stack_walk_user_common() contains a return statement instead of a break statement in case store_ip() fails while trying to store a callchain entry of a user space process. This may lead to a missing pagefault_enable() call.

If this happens any subsequent page fault of the process won't be resolved by the page fault handler and this in turn will lead to the process being killed.

Use a break instead of a return statement to fix this.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-56550"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-27T15:15:13Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/stacktrace: Use break instead of return statement\n\narch_stack_walk_user_common() contains a return statement instead of a\nbreak statement in case store_ip() fails while trying to store a callchain\nentry of a user space process.\nThis may lead to a missing pagefault_enable() call.\n\nIf this happens any subsequent page fault of the process won\u0027t be resolved\nby the page fault handler and this in turn will lead to the process being\nkilled.\n\nUse a break instead of a return statement to fix this.",
  "id": "GHSA-xv4r-xrmj-c649",
  "modified": "2025-10-08T15:32:25Z",
  "published": "2024-12-27T15:31:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56550"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/20c26357826457dc7c8145297e60ddc012e18914"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/588a9836a4ef7ec3bfcffda526dfa399637e6cfc"
    }
  ],
  "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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