GHSA-2R6W-8QQX-7JQ3
Vulnerability from github – Published: 2026-02-04 18:30 – Updated: 2026-03-13 21:31In the Linux kernel, the following vulnerability has been resolved:
spi: spi-sprd-adi: Fix double free in probe error path
The driver currently uses spi_alloc_host() to allocate the controller but registers it using devm_spi_register_controller().
If devm_register_restart_handler() fails, the code jumps to the put_ctlr label and calls spi_controller_put(). However, since the controller was registered via a devm function, the device core will automatically call spi_controller_put() again when the probe fails. This results in a double-free of the spi_controller structure.
Fix this by switching to devm_spi_alloc_host() and removing the manual spi_controller_put() call.
{
"affected": [],
"aliases": [
"CVE-2026-23068"
],
"database_specific": {
"cwe_ids": [
"CWE-415"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-04T17:16:17Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: spi-sprd-adi: Fix double free in probe error path\n\nThe driver currently uses spi_alloc_host() to allocate the controller\nbut registers it using devm_spi_register_controller().\n\nIf devm_register_restart_handler() fails, the code jumps to the\nput_ctlr label and calls spi_controller_put(). However, since the\ncontroller was registered via a devm function, the device core will\nautomatically call spi_controller_put() again when the probe fails.\nThis results in a double-free of the spi_controller structure.\n\nFix this by switching to devm_spi_alloc_host() and removing the\nmanual spi_controller_put() call.",
"id": "GHSA-2r6w-8qqx-7jq3",
"modified": "2026-03-13T21:31:40Z",
"published": "2026-02-04T18:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23068"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/346775f2b4cf839177e8e86b94aa180a06dc15b0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/383d4f5cffcc8df930d95b06518a9d25a6d74aac"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/417cdfd9b9f986e95bfcb1d68eb443e6e0a15f8c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bddd3d10d039729b81cfb0804520c8832a701a0e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f6d6b3f172df118db582fe5ec43ae223a55d99cf"
}
],
"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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