GHSA-3HHP-7J3W-92C8
Vulnerability from github – Published: 2026-09-16 12:30 – Updated: 2026-09-16 12:30In the Linux kernel, the following vulnerability has been resolved:
scsi: qla2xxx: Fix FCE trace use-after-free during firmware dump
qla2x00_free_fce_trace() freed and cleared ha->fce while holding only fce_mutex. The firmware-dump consumers qla27xx_fwdt_entry_t264() and qla25xx_copy_fce() read ha->fce (NULL check followed by a copy of the buffer) under hardware_lock and never take fce_mutex. A debugfs FCE disable could therefore free the DMA buffer between a dump's NULL check and its copy, resulting in a use-after-free.
Unpublish ha->fce under hardware_lock, then release the lock and free the DMA buffer (dma_free_coherent() may sleep). A concurrent dump either completes its check and copy with the buffer still valid, or observes ha->fce == NULL and skips it.
{
"affected": [],
"aliases": [
"CVE-2026-89853"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-16T11:16:53Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Fix FCE trace use-after-free during firmware dump\n\nqla2x00_free_fce_trace() freed and cleared ha-\u003efce while holding only\nfce_mutex. The firmware-dump consumers qla27xx_fwdt_entry_t264() and\nqla25xx_copy_fce() read ha-\u003efce (NULL check followed by a copy of the\nbuffer) under hardware_lock and never take fce_mutex. A debugfs FCE\ndisable could therefore free the DMA buffer between a dump\u0027s NULL check\nand its copy, resulting in a use-after-free.\n\nUnpublish ha-\u003efce under hardware_lock, then release the lock and free\nthe DMA buffer (dma_free_coherent() may sleep). A concurrent dump either\ncompletes its check and copy with the buffer still valid, or observes\nha-\u003efce == NULL and skips it.",
"id": "GHSA-3hhp-7j3w-92c8",
"modified": "2026-09-16T12:30:39Z",
"published": "2026-09-16T12:30:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89853"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/41ef7edde27ac87d55ffc703da44e78aa8c2e896"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/423487f03e325b8665d20a2a3171fe012b1a4fa9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/53298efcbbb0f0438366d45cb7ed7e6d93dd5531"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6003e79148eca73d7cafb076f5be47e234d543d0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7bd308cd893e8cce023d03a40a2f0adccaff0175"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8e7a26931b6111583cfeaf49c068f26524dc3af2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/edc464a4fc96e2720d166e7cc7e7a6827b086760"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ef9b89f6c92274c3670403fd06130ca25f685050"
}
],
"schema_version": "1.4.0",
"severity": []
}
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