ghsa-w2x6-62q8-xq6c
Vulnerability from github
Published
2024-05-01 15:30
Modified
2024-05-01 15:30
Details

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

workqueue: Don't call cpumask_test_cpu() with -1 CPU in wq_update_node_max_active()

For wq_update_node_max_active(), @off_cpu of -1 indicates that no CPU is going down. The function was incorrectly calling cpumask_test_cpu() with -1 CPU leading to oopses like the following on some archs:

Unable to handle kernel paging request at virtual address ffff0002100296e0 .. pc : wq_update_node_max_active+0x50/0x1fc lr : wq_update_node_max_active+0x1f0/0x1fc ... Call trace: wq_update_node_max_active+0x50/0x1fc apply_wqattrs_commit+0xf0/0x114 apply_workqueue_attrs_locked+0x58/0xa0 alloc_workqueue+0x5ac/0x774 workqueue_init_early+0x460/0x540 start_kernel+0x258/0x684 __primary_switched+0xb8/0xc0 Code: 9100a273 35000d01 53067f00 d0016dc1 (f8607a60) ---[ end trace 0000000000000000 ]--- Kernel panic - not syncing: Attempted to kill the idle task! ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---

Fix it.

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2024-27055"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-01T13:15:50Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nworkqueue: Don\u0027t call cpumask_test_cpu() with -1 CPU in wq_update_node_max_active()\n\nFor wq_update_node_max_active(), @off_cpu of -1 indicates that no CPU is\ngoing down. The function was incorrectly calling cpumask_test_cpu() with -1\nCPU leading to oopses like the following on some archs:\n\n  Unable to handle kernel paging request at virtual address ffff0002100296e0\n  ..\n  pc : wq_update_node_max_active+0x50/0x1fc\n  lr : wq_update_node_max_active+0x1f0/0x1fc\n  ...\n  Call trace:\n    wq_update_node_max_active+0x50/0x1fc\n    apply_wqattrs_commit+0xf0/0x114\n    apply_workqueue_attrs_locked+0x58/0xa0\n    alloc_workqueue+0x5ac/0x774\n    workqueue_init_early+0x460/0x540\n    start_kernel+0x258/0x684\n    __primary_switched+0xb8/0xc0\n  Code: 9100a273 35000d01 53067f00 d0016dc1 (f8607a60)\n  ---[ end trace 0000000000000000 ]---\n  Kernel panic - not syncing: Attempted to kill the idle task!\n  ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---\n\nFix it.",
  "id": "GHSA-w2x6-62q8-xq6c",
  "modified": "2024-05-01T15:30:36Z",
  "published": "2024-05-01T15:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27055"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/15930da42f8981dc42c19038042947b475b19f47"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38c19c44cc05ec1e84d2e31a9a289b83b6c7ec85"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7df62b8cca38aa452b508b477b16544cba615084"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9fc557d489f8163c1aabcb89114b8eba960f4097"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a75ac2693d734d20724f0e10e039ca85f1fcfc4e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/adc646d2126988a64234502f579e4bc2b080d7cf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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