CVE-2022-50653: Linux

EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: mmc: atmel-mci: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, it will lead two issues: 1. The memory that allocated in mmc_alloc_host() is leaked. 2. In the remove() path, mmc_remove_host() will be called to delete device, but it's not added yet, it will lead a kernel crash because of null-ptr-deref in device_del(). So fix this by checking the return value and calling mmc_free_host() in the error path.

Affected products

• Linux Linux: from 2.6.27, before 4.19.270 (fixed in 4.19.270); from 4.20, before 5.4.229 (fixed in 5.4.229); from 5.5, before 5.10.163 (fixed in 5.10.163); from 5.11, before 5.15.86 (fixed in 5.15.86); from 5.16, before 6.0.16 (fixed in 6.0.16); from 6.1, before 6.1.2 (fixed in 6.1.2)

Published 2025-12-09. Last modified 2026-06-17.