CVE-2024-50222
kernel: iov_iter: fix copy_page_from_iter_atomic() if KMAP_LOCAL_FORCE_MAP
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · November 9, 2024
Updated · September 12, 2026
Description
A flaw was found in the Linux kernel. A local user could trigger a denial of service by exploiting an issue within the iov_iter component, specifically related to the copy_page_from_iter_atomic() function when CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP is enabled with high memory and huge tmpfs. This could lead to the system hanging, causing a denial of service.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-758 · Reliance on Undefined, Unspecified, or Implementation-Defined Behavior