CVE-2026-31391
Received
Received - Intake
Memory Leak in Linux Kernel Atmel-SHA204a Crypto Component
Publication date: 2026-04-03
Last updated on: 2026-04-18
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
crypto: atmel-sha204a - Fix OOM ->tfm_count leak
If memory allocation fails, decrement ->tfm_count to avoid blocking
future reads.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | * |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is related to the Linux kernel's crypto subsystem, specifically the atmel-sha204a driver. It involves a memory management issue where, if a memory allocation fails, the reference count (tfm_count) is not properly decremented. This can lead to a leak that blocks future read operations.
How can this vulnerability impact me? :
The impact of this vulnerability is that it can cause a resource leak in the Linux kernel's crypto driver, potentially leading to denial of service by blocking future read operations due to the unreleased reference count.
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