FKIE_CVE-2023-53658
Vulnerability from fkie_nvd - Published: 2025-10-07 16:15 - Updated: 2026-02-03 19:51
Severity ?
Summary
In 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.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
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"cveTags": [],
"descriptions": [
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"lang": "en",
"value": "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."
}
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"id": "CVE-2023-53658",
"lastModified": "2026-02-03T19:51:14.577",
"metrics": {
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"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"source": "nvd@nist.gov",
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"published": "2025-10-07T16:15:49.443",
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"value": "CWE-476"
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"source": "nvd@nist.gov",
"type": "Primary"
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]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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