GHSA-VQG2-RJJW-JC84
Vulnerability from github – Published: 2025-12-24 15:30 – Updated: 2026-08-04 12:34In the Linux kernel, the following vulnerability has been resolved:
scsi: qedi: Fix use after free bug in qedi_remove()
In qedi_probe() we call __qedi_probe() which initializes &qedi->recovery_work with qedi_recovery_handler() and &qedi->board_disable_work with qedi_board_disable_work().
When qedi_schedule_recovery_handler() is called, schedule_delayed_work() will finally start the work.
In qedi_remove(), which is called to remove the driver, the following sequence may be observed:
Fix this by finishing the work before cleanup in qedi_remove().
CPU0 CPU1
|qedi_recovery_handler
qedi_remove | __qedi_remove | iscsi_host_free | scsi_host_put | //free shost | |iscsi_host_for_each_session |//use qedi->shost
Cancel recovery_work and board_disable_work in __qedi_remove().
{
"affected": [],
"aliases": [
"CVE-2023-54100"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-24T13:16:11Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qedi: Fix use after free bug in qedi_remove()\n\nIn qedi_probe() we call __qedi_probe() which initializes\n\u0026qedi-\u003erecovery_work with qedi_recovery_handler() and\n\u0026qedi-\u003eboard_disable_work with qedi_board_disable_work().\n\nWhen qedi_schedule_recovery_handler() is called, schedule_delayed_work()\nwill finally start the work.\n\nIn qedi_remove(), which is called to remove the driver, the following\nsequence may be observed:\n\nFix this by finishing the work before cleanup in qedi_remove().\n\nCPU0 CPU1\n\n |qedi_recovery_handler\nqedi_remove |\n __qedi_remove |\niscsi_host_free |\nscsi_host_put |\n//free shost |\n |iscsi_host_for_each_session\n |//use qedi-\u003eshost\n\nCancel recovery_work and board_disable_work in __qedi_remove().",
"id": "GHSA-vqg2-rjjw-jc84",
"modified": "2026-08-04T12:34:44Z",
"published": "2025-12-24T15:30:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54100"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/124027cd1a624ce0347adcd59241a9966a726b22"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3738a230831e861503119ee2691c4a7dc56ed60a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5e756a59cee6a8a79b9059c5bdf0ecbf5bb8d151"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/89f6023fc321c958a0fb11f143a6eb4544ae3940"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c5749639f2d0a1f6cbe187d05f70c2e7c544d748"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fa19c533ab19161298f0780bcc6523af88f6fd20"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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