{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-50006",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-50006"
  ],
  "published": "2024-10-21T18:58:18Z",
  "summary": "ext4: fix i_data_sem unlock order in ext4_ind_migrate()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix i_data_sem unlock order in ext4_ind_migrate()\n\nFuzzing reports a possible deadlock in jbd2_log_wait_commit.\n\nThis issue is triggered when an EXT4_IOC_MIGRATE ioctl is set to require\nsynchronous updates because the file descriptor is opened with O_SYNC.\nThis can lead to the jbd2_journal_stop() function calling\njbd2_might_wait_for_commit(), potentially causing a deadlock if the\nEXT4_IOC_MIGRATE call races with a write(2) system call.\n\nThis problem only arises when CONFIG_PROVE_LOCKING is enabled. In this\ncase, the jbd2_might_wait_for_commit macro locks jbd2_handle in the\njbd2_journal_stop function while i_data_sem is locked. This triggers\nlockdep because the jbd2_journal_start function might also lock the same\njbd2_handle simultaneously.\n\nFound by Linux Verification Center (linuxtesting.org) with syzkaller.\n\nRule: add",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-50006"
    },
    {
      "type": "FIX",
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    "upstream_modified": "2026-05-12T04:54:46Z"
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