CVE-2020-29369

Published: Nov 28, 2020Modified: Jun 17, 2026

7.0

Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.0 / Impact: 5.9

Source: NVD

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.

Affected (6)

Products: Linux: Linux Kernel · Netapp: Hci Compute Node, Hci Management Node, Hci Storage Node, Solidfire

1 product

4 products

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	From 4.20 to 5.4.54
Linux Linux Kernel	From 5.5 to 5.7.11

Configuration B

4 vulnerable

Vulnerable Software	Affected Versions
Netapp Hci Compute Node	All versions
Netapp Hci Management Node	All versions
Netapp Hci Storage Node	All versions
Netapp Solidfire	All versions

Related CWEs

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

References (12)

http://www.openwall.com/lists/oss-security/2021/02/10/6

Source: cve@mitre.org

Mailing ListPatchThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/02/19/8

Source: cve@mitre.org

Mailing ListPatchThird Party Advisory

https://bugs.chromium.org/p/project-zero/issues/detail?id=2056

Source: cve@mitre.org

ExploitIssue TrackingPatchThird Party Advisory

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.11

Source: cve@mitre.org

Release NotesVendor Advisory

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=246c320a8cfe0b11d81a4af38fa9985ef0cc9a4c

Source: cve@mitre.org

PatchVendor Advisory

https://security.netapp.com/advisory/ntap-20210115-0001/

Source: cve@mitre.org

Third Party Advisory

http://www.openwall.com/lists/oss-security/2021/02/10/6