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medium5.5

CVE-2022-50353

In the Linux kernel, the following vulnerability has been resolved: mmc: wmt-sdmmc: fix return value check of mmc_add_host() mmc_add_host() may return error, i…

Impact

In the Linux kernel, the following vulnerability has been resolved: mmc: wmt-sdmmc: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path. So fix this by checking the return value and goto error path which will call mmc_free_host(), besides, clk_disable_unprepare() also needs be called.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 3.8 before 4.14.303
from 4.15 before 4.19.270
from 4.20 before 5.4.229
from 5.5 before 5.10.163
from 5.11 before 5.15.86
from 5.16 before 6.0.16

Weakness classification

CWE-476

References