CVE-2020-29373

PoC —

CVSS 3.1

6.5 medium

EPSS

<1%p43

Published

Nov 28, 2020 (Nov 28, 2020)

Modified

Jun 17, 2026

Description

An issue was discovered in fs/io_uring.c in the Linux kernel before 5.6. It unsafely handles the root directory during path lookups, and thus a process inside a mount namespace can escape to unintended filesystem locations, aka CID-ff002b30181d.

Vendors: linux
Products: linux kernel
Weakness: CWE-22
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.5%)

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