CVE-2020-29374

unknown

Published — · Modified —

CVSS v3

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CVSS v2

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VIR risk

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Description

An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-29374

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-29374.html

OS impact

OS	Version	Status	Fixed in
sles		affected
debian	bookworm	fixed	`5.7.6-1`
debian	bullseye	fixed	`5.7.6-1`
debian	forky	fixed	`5.7.6-1`
debian	sid	fixed	`5.7.6-1`
debian	trixie	fixed	`5.7.6-1`

References

https://www.suse.com/security/cve/CVE-2020-29374.html
https://security-tracker.debian.org/tracker/CVE-2020-29374

Verify integrity in audit chain (admin only). AS-IS.