CVE-2024-50184 Information

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.

Reference

https://git.kernel.org/stable/c/4ce662fe4be6fbc2595d9ef4888b2b6e778c99ed https://git.kernel.org/stable/c/9a2bc9b6f929a2ce1ebe4d1a796ddab37568c5b4 https://git.kernel.org/stable/c/6a5ca0ab94e13a1474bf7ad8437a975c2193618f https://git.kernel.org/stable/c/b01793cc63dd39c8f12b9a3d8dc115fbebb19e2a https://git.kernel.org/stable/c/ce7a3a62cc533c922072f328fd2ea2fd7cb893d4 https://git.kernel.org/stable/c/e25fbcd97cf52c3c9824d44b5c56c19673c3dd50 https://git.kernel.org/stable/c/59ac565c6277d4be6661e81ea6a7f3ca2c5e4e36