GHSA-93vf-4x6g-q64v

GHSA-93vf-4x6g-q64v PUBLISHED CVSS 5.5 MEDIUM

Record from GitHub Advisory Database · Published May 24, 2022

A flaw was found in the Linux Kernel before 5.8-rc6 in the ZRAM kernel module, where a user with a local account and the ability to read the /sys/class/zram-control/hot_add file can create ZRAM device nodes in the /dev/ directory. This read allocates kernel memory and is not accounted for a user that triggers the creation of that ZRAM device. With this vulnerability, continually reading the device may consume a large amount of system memory and cause the Out-of-Memory (OOM) killer to activate and terminate random userspace processes, possibly making the system inoperable.

Risk scores

CVSS 3.1

5.5

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

Timeline

May 24, 2022 CVE Published
Apr 9, 2026 Security Advisory

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The same record, from the CLI:

vulnetix vdb vuln GHSA-93vf-4x6g-q64v
vulnetix vdb fixes GHSA-93vf-4x6g-q64v

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curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/GHSA-93vf-4x6g-q64v/fixes/registry"

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