CVE-2023-53658
Estado: AnalizadaMedia (5.5)—
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.
Leer descripción completaMostrar menos
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.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.15%
- Percentil entre todas las CVEs puntuadas: 4
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-476
Referencias
- https://git.kernel.org/stable/c/217b6ea8cf7b819477bca597a6ae2d43d38ba283
- https://git.kernel.org/stable/c/22ae32d80ef590d12a2364e4621f90f7c58445c7
- https://git.kernel.org/stable/c/32b9c8f7892c19f7f5c9fed5fb410b9fd5990bb6
- https://git.kernel.org/stable/c/398e6a015877d44327f754aeb48ff3354945c78c
- https://git.kernel.org/stable/c/7c1f23ad34fcdace50275a6aa1e1969b41c6233f
- https://git.kernel.org/stable/c/a91c34357afcfaa5307e254f22a8452550a07b34
- https://git.kernel.org/stable/c/d20db3c58a7f9361e370a7850ceb60dbdf62eea3
- https://git.kernel.org/stable/c/d3dcdb43c872a3b967345144151a2c9bb9124c9b
JSON original (NVD)
Mostrar
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