CVE-2023-53284
BaseFortify
Publication date: 2025-09-16
Last updated on: 2025-12-02
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | From 5.19 (inc) to 6.1.16 (exc) |
| linux | linux_kernel | From 6.2 (inc) to 6.2.3 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-476 | The product dereferences a pointer that it expects to be valid but is NULL. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability occurs in the Linux kernel's drm/msm/dpu component where a function called devm_kzalloc() may fail and return NULL. If this failure is not checked, it can lead to a null pointer dereference later in the code, potentially causing a crash or unexpected behavior. The fix involves checking the return value of devm_kzalloc() and returning an error (-ENOMEM) if it fails.
How can this vulnerability impact me? :
If exploited, this vulnerability could cause the affected system to crash or behave unpredictably due to a null pointer dereference in the Linux kernel's display processing unit code. This could lead to denial of service or system instability.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update the Linux kernel to a version that includes the patch fixing the null pointer dereference in drm/msm/dpu by checking the return value of devm_kzalloc() in dpu_writeback_init().