What’s Vulnerable › Vulnerabilities

CVE-2020-29371

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-11-28 · updated 2026-06-17
• Weakness: CWE-908

Description

An issue was discovered in romfs_dev_read in fs/romfs/storage.c in the Linux kernel before 5.8.4. Uninitialized memory leaks to userspace, aka CID-bcf85fcedfdd.

Affected products

• Linux kernel: before 5.8.4 — fixed in 5.8.4

How to fix

Upgrade to a fixed version: Linux kernel 5.8.4. Check the vendor advisory for mitigations.

References

• https://bugs.chromium.org/p/project-zero/issues/detail?id=2077
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.4
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2935e0a3cec1ffa558eea90db6279cff83aa3592
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bcf85fcedfdd17911982a3e3564fcfec7b01eebd
• https://bugs.chromium.org/p/project-zero/issues/detail?id=2077
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.4
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2935e0a3cec1ffa558eea90db6279cff83aa3592
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bcf85fcedfdd17911982a3e3564fcfec7b01eebd

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