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CVE-2023-54204

mmc: sunplus: fix return value check of mmc_add_host() PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: mmc: sunplus: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, 1. the memory allocated in mmc_alloc_host() will be leaked 2. null-ptr-deref will happen when calling mmc_remove_host() in remove function spmmc_drv_remove() because deleting not added device. Fix this by checking the return value of mmc_add_host(). Moreover, I fixed the error handling path of spmmc_drv_probe() to clean up.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 4e268fed8b1861616af28f9cfb4eed8ca5d7af6c before 741a951f41929f39cae70c66d86d0754d3129d0a; affected 4e268fed8b1861616af28f9cfb4eed8ca5d7af6c before dce6d8f985fa1ef5c2af47f4f86ea65511b78656
Linux / Linuxaffected 6.2; unaffected 0 before 6.2; unaffected 6.4.12 through 6.4.*; unaffected 6.5 through *

CWE

No CWE identifiers supplied.

References