CVE-2022-50140: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: memstick/ms_block: Fix a memory leak 'erased_blocks_bitmap' is never freed. As it is allocated at the same time as 'used_blocks_bitmap', it is likely that it should be freed also at the same time. Add the corresponding bitmap_free() in msb_data_clear().

Affected products

• Linux Linux Kernel: from 3.12, before 4.14.291 (fixed in 4.14.291); from 4.15, before 4.19.256 (fixed in 4.19.256); from 4.20, before 5.4.211 (fixed in 5.4.211); from 5.5, before 5.10.137 (fixed in 5.10.137); from 5.11, before 5.15.61 (fixed in 5.15.61); from 5.16, before 5.18.18 (fixed in 5.18.18); …

Published 2025-06-18. Last modified 2026-06-17.