GHSA-F5PR-PCC8-PGCP
Vulnerability from github – Published: 2025-10-07 18:31 – Updated: 2026-02-03 21:31In the Linux kernel, the following vulnerability has been resolved:
spi: bcm-qspi: return error if neither hif_mspi nor mspi is available
If neither a "hif_mspi" nor "mspi" resource is present, the driver will just early exit in probe but still return success. Apart from not doing anything meaningful, this would then also lead to a null pointer access on removal, as platform_get_drvdata() would return NULL, which it would then try to dereference when trying to unregister the spi master.
Fix this by unconditionally calling devm_ioremap_resource(), as it can handle a NULL res and will then return a viable ERR_PTR() if we get one.
The "return 0;" was previously a "goto qspi_resource_err;" where then ret was returned, but since ret was still initialized to 0 at this place this was a valid conversion in 63c5395bb7a9 ("spi: bcm-qspi: Fix use-after-free on unbind"). The issue was not introduced by this commit, only made more obvious.
{
"affected": [],
"aliases": [
"CVE-2023-53658"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-07T16:15:49Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: bcm-qspi: return error if neither hif_mspi nor mspi is available\n\nIf neither a \"hif_mspi\" nor \"mspi\" resource is present, the driver will\njust early exit in probe but still return success. Apart from not doing\nanything meaningful, this would then also lead to a null pointer access\non removal, as platform_get_drvdata() would return NULL, which it would\nthen try to dereference when trying to unregister the spi master.\n\nFix this by unconditionally calling devm_ioremap_resource(), as it can\nhandle a NULL res and will then return a viable ERR_PTR() if we get one.\n\nThe \"return 0;\" was previously a \"goto qspi_resource_err;\" where then\nret was returned, but since ret was still initialized to 0 at this place\nthis was a valid conversion in 63c5395bb7a9 (\"spi: bcm-qspi: Fix\nuse-after-free on unbind\"). The issue was not introduced by this commit,\nonly made more obvious.",
"id": "GHSA-f5pr-pcc8-pgcp",
"modified": "2026-02-03T21:31:46Z",
"published": "2025-10-07T18:31:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53658"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/217b6ea8cf7b819477bca597a6ae2d43d38ba283"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/22ae32d80ef590d12a2364e4621f90f7c58445c7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/32b9c8f7892c19f7f5c9fed5fb410b9fd5990bb6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/398e6a015877d44327f754aeb48ff3354945c78c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7c1f23ad34fcdace50275a6aa1e1969b41c6233f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a91c34357afcfaa5307e254f22a8452550a07b34"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d20db3c58a7f9361e370a7850ceb60dbdf62eea3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d3dcdb43c872a3b967345144151a2c9bb9124c9b"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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