CVE-2020-29369 Race condition in n/a

What is CVE-2020-29369?

CVE-2020-29369 is a high-severity vulnerability in Linux kernel, published on 28 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-362

Which versions are affected by CVE-2020-29369?

It affects 5 products.

Products include Linux kernel, Netapp Hci Compute Node, Netapp Hci Management Node, Netapp Hci Storage Node, Netapp Solidfire.

How do I fix CVE-2020-29369?

Apply the vendor's patch.

Is CVE-2020-29369 being exploited?

There is no known exploitation of CVE-2020-29369 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-29369, GHSA-rp7p-r22g-55vr, SUSE-SU-2020:3843-1, UBUNTU-CVE-2020-29369.