Description
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.
References (5)
Core 5
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.4
Exploit, Patch, Third Party Advisory x_refsource_misc
https://patchwork.kernel.org/patch/10753365/
Patch, Vendor Advisory x_refsource_misc
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5e3cc1ee1405a7eb3487ed24f786dec01b4cbe1f
Vendor Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20191004-0001/
Vendor Advisory x_refsource_confirm
https://support.f5.com/csp/article/K43239141?utm_source=f5support&%3Butm_medium=RSS
Scores
CVSS v3
7.5
EPSS
0.0121
EPSS Percentile
79.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-835
Status
published
Products (1)
linux/linux_kernel
< 5.0.4
Published
Sep 19, 2019
Tracked Since
Feb 18, 2026