CVE-2020-29373

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.

Weakness classification

• nvd@nist.gov: CWE-22

Primary references

• cve@mitre.org — Exploit, Issue Tracking, Third Party Advisory
• cve@mitre.org — Release Notes, Vendor Advisory
• cve@mitre.org — Patch, Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory