CVE-2025-38029
kernel: Linux kernel: Denial of Service due to sleepable page allocation in KASAN
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 18, 2025
Updated · June 30, 2026
Description
A flaw was found in the Linux kernel's Kernel Address Sanitizer (KASAN) component. When the apply_to_pte_range() function enters lazy Memory Management Unit (MMU) mode, the kasan_populate_vmalloc_pte() callback may attempt to allocate a page that can cause the system to sleep. If preemption is disabled during this process, it can lead to a kernel crash, resulting in a Denial of Service (DoS) for the system.
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
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
CVSS / CWE
CVSS 3.1 · 4.1CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-663 · Use of a Non-reentrant Function in a Concurrent Context