NULL pointer dereference in Linux
CVE-2023-53444
In the Linux kernel, the following vulnerability has been resolved: drm/ttm: fix bulk_move corruption when adding a entry When the resource is the first in the bulk_move range, adding it again (thus moving it to the tail) will corrupt the list since the first pointer is not moved. This eventually lead to null pointer deref in ttm_lru_bulk_move_del()
EPSS: 0.001 (3.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux — versions fee2ede155423b0f7a559050a39750b98fe9db69, 5.19, 0
- Linux Linux_kernel — versions 6.5
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2023-53444?
- CVE-2023-53444 is a medium-severity vulnerability in Linux, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2025-09-18.
- How severe is CVE-2023-53444?
- Medium severity. CVSS v3 base score is 5.5 out of 10.