CVE-2022-47942: Linux Kernel

High severity, CVSS 8.8. EPSS: 3.7% chance of exploitation in the next 30 days.

An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is a heap-based buffer overflow in set_ntacl_dacl, related to use of SMB2_QUERY_INFO_HE after a malformed SMB2_SET_INFO_HE command.

Affected products

• Linux Linux Kernel: from 5.15, before 5.15.62 (fixed in 5.15.62); from 5.16, before 5.18.18 (fixed in 5.18.18); from 5.19, before 5.19.2 (fixed in 5.19.2)

Published 2022-12-23. Last modified 2026-06-17.