CVE-2020-29369: Linux Kernel

High severity, CVSS 7.0. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe.

Affected products

• Linux Linux Kernel: from 4.20, before 5.4.54 (fixed in 5.4.54); from 5.5, before 5.7.11 (fixed in 5.7.11)
• Netapp Hci Compute Node: affected versions not specified
• Netapp Hci Management Node: affected versions not specified
• Netapp Hci Storage Node: affected versions not specified
• Netapp Solidfire: affected versions not specified

Published 2020-11-28. Last modified 2026-06-17.