An issue was discovered in the Linux kernel before 5.0.4. The 9p filesystem did not protect i_size_write() properly, which causes an i_size_read() infinite loop and denial of service on SMP systems.
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.4
https://patchwork.kernel.org/patch/10753365/
https://security.netapp.com/advisory/ntap-20191004-0001/
https://support.f5.com/csp/article/K43239141?utm_source=f5support&utm_medium=RSS
Source: MITRE
Published: 2019-09-19
Updated: 2019-10-04
Type: CWE-835
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH