GHSA-MGF2-2RM5-MVRF
Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-05-27 15:33In the Linux kernel, the following vulnerability has been resolved:
md/raid5: fix soft lockup in retry_aligned_read()
When retry_aligned_read() encounters an overlapped stripe, it releases the stripe via raid5_release_stripe() which puts it on the lockless released_stripes llist. In the next raid5d loop iteration, release_stripe_list() drains the stripe onto handle_list (since STRIPE_HANDLE is set by the original IO), but retry_aligned_read() runs before handle_active_stripes() and removes the stripe from handle_list via find_get_stripe() -> list_del_init(). This prevents handle_stripe() from ever processing the stripe to resolve the overlap, causing an infinite loop and soft lockup.
Fix this by using __release_stripe() with temp_inactive_list instead of raid5_release_stripe() in the failure path, so the stripe does not go through the released_stripes llist. This allows raid5d to break out of its loop, and the overlap will be resolved when the stripe is eventually processed by handle_stripe().
{
"affected": [],
"aliases": [
"CVE-2026-46051"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-27T14:17:24Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid5: fix soft lockup in retry_aligned_read()\n\nWhen retry_aligned_read() encounters an overlapped stripe, it releases\nthe stripe via raid5_release_stripe() which puts it on the lockless\nreleased_stripes llist. In the next raid5d loop iteration,\nrelease_stripe_list() drains the stripe onto handle_list (since\nSTRIPE_HANDLE is set by the original IO), but retry_aligned_read()\nruns before handle_active_stripes() and removes the stripe from\nhandle_list via find_get_stripe() -\u003e list_del_init(). This prevents\nhandle_stripe() from ever processing the stripe to resolve the\noverlap, causing an infinite loop and soft lockup.\n\nFix this by using __release_stripe() with temp_inactive_list instead\nof raid5_release_stripe() in the failure path, so the stripe does not\ngo through the released_stripes llist. This allows raid5d to break out\nof its loop, and the overlap will be resolved when the stripe is\neventually processed by handle_stripe().",
"id": "GHSA-mgf2-2rm5-mvrf",
"modified": "2026-05-27T15:33:22Z",
"published": "2026-05-27T15:33:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46051"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/09880592f5a9dc73377d6eb5ac123537b5f8df49"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1985cb3247e87ff6b8ca4bc5f9626f4f51024507"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7f9f7c697474268d9ef9479df3ddfe7cdcfbbffc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/80fc6ca2cbde018d52e13f305edcd643911bd94b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/883cc33b7af1c448663287f069ef9dfea001e90f"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
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