CVE-2023-53444
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-18

Last updated on: 2025-12-12

Assigner: kernel.org

Description
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()
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Meta Information
Published
2025-09-18
Last Modified
2025-12-12
Generated
2026-06-16
AI Q&A
2025-09-18
EPSS Evaluated
2026-06-15
NVD
CVE-2023-53444
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 5.19 (inc) to 6.1.42 (exc)
linux linux_kernel From 6.2 (inc) to 6.4.7 (exc)
linux linux_kernel 6.5
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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Executive Summary

This vulnerability is in the Linux kernel's drm/ttm component. It occurs when a resource that is the first in a bulk_move range is added again, moving it to the tail without updating the first pointer. This causes corruption of the list and can lead to a null pointer dereference in the function ttm_lru_bulk_move_del().

Impact Analysis

The vulnerability can cause a null pointer dereference in the Linux kernel, which may lead to system crashes or instability. This could potentially be exploited to disrupt system operations or cause denial of service.

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