CVE-2023-53658 (GCVE-0-2023-53658)
Vulnerability from cvelistv5
Published
2025-10-07 15:21
Modified
2025-10-07 15:21
Severity ?
VLAI Severity ?
EPSS score ?
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 |
Version: fa236a7ef24048bafaeed13f68df35a819794758 Version: fa236a7ef24048bafaeed13f68df35a819794758 Version: fa236a7ef24048bafaeed13f68df35a819794758 Version: fa236a7ef24048bafaeed13f68df35a819794758 Version: fa236a7ef24048bafaeed13f68df35a819794758 Version: fa236a7ef24048bafaeed13f68df35a819794758 Version: fa236a7ef24048bafaeed13f68df35a819794758 Version: fa236a7ef24048bafaeed13f68df35a819794758 |
||
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"providerMetadata": {
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{
"url": "https://git.kernel.org/stable/c/7c1f23ad34fcdace50275a6aa1e1969b41c6233f"
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"datePublished": "2025-10-07T15:21:18.950Z",
"dateReserved": "2025-10-07T15:16:59.661Z",
"dateUpdated": "2025-10-07T15:21:18.950Z",
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},
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