What’s Vulnerable › Vulnerabilities

CVE-2024-50184: virtio_pmem: Check device status before requesting flush

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-11-08 · updated 2026-06-17
• Weakness: CWE-754

Description

In the Linux kernel, the following vulnerability has been resolved: virtio_pmem: Check device status before requesting flush If a pmem device is in a bad status, the driver side could wait for host ack forever in virtio_pmem_flush(), causing the system to hang. So add a status check in the beginning of virtio_pmem_flush() to return early if the device is not activated.

Affected products

• Linux kernel: from 5.3 before 5.4.285; from 5.5 before 5.10.227; from 5.11 before 5.15.168; from 5.16 before 6.1.113; from 6.2 before 6.6.57; from 6.7 before 6.11.4 — fixed in 5.10.227, 5.15.168, 5.4.285, 6.1.113, 6.11.4, 6.6.57

How to fix

Upgrade to a fixed version: Linux kernel 5.10.227, 5.15.168, 5.4.285, 6.1.113. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/4ce662fe4be6fbc2595d9ef4888b2b6e778c99ed
• https://git.kernel.org/stable/c/59ac565c6277d4be6661e81ea6a7f3ca2c5e4e36
• https://git.kernel.org/stable/c/6a5ca0ab94e13a1474bf7ad8437a975c2193618f
• https://git.kernel.org/stable/c/9a2bc9b6f929a2ce1ebe4d1a796ddab37568c5b4
• https://git.kernel.org/stable/c/b01793cc63dd39c8f12b9a3d8dc115fbebb19e2a
• https://git.kernel.org/stable/c/ce7a3a62cc533c922072f328fd2ea2fd7cb893d4
• https://git.kernel.org/stable/c/e25fbcd97cf52c3c9824d44b5c56c19673c3dd50
• https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
• https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

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