CVE-2025-38095
Analyzed
Analyzed - Analysis Complete
BaseFortify
Publication date: 2025-07-03
Last updated on: 2025-12-16
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
dma-buf: insert memory barrier before updating num_fences
smp_store_mb() inserts memory barrier after storing operation.
It is different with what the comment is originally aiming so Null
pointer dereference can be happened if memory update is reordered.
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | From 5.0 (inc) to 5.10.241 (exc) |
| linux | linux_kernel | From 5.11 (inc) to 5.15.192 (exc) |
| linux | linux_kernel | From 5.16 (inc) to 6.1.140 (exc) |
| linux | linux_kernel | From 6.2 (inc) to 6.6.92 (exc) |
| linux | linux_kernel | From 6.7 (inc) to 6.12.30 (exc) |
| linux | linux_kernel | From 6.13 (inc) to 6.14.8 (exc) |
| linux | linux_kernel | 6.15 |
| linux | linux_kernel | 6.15 |
| linux | linux_kernel | 6.15 |
| linux | linux_kernel | 6.15 |
| linux | linux_kernel | 6.15 |
| linux | linux_kernel | 6.15 |
| debian | debian_linux | 11.0 |
Helpful Resources
Exploitability
CWE
KEV
| 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 in the Linux kernel involves the dma-buf subsystem where a memory barrier was inserted after a store operation (using smp_store_mb()), which is different from what the original comment intended. Because of this, memory updates can be reordered, potentially leading to a null pointer dereference.
How can this vulnerability impact me? :
The vulnerability can cause a null pointer dereference in the Linux kernel, which may lead to system crashes or instability, potentially affecting the reliability and availability of systems using the affected kernel.
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