CVE-2026-46068 Details
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx The bounce buffers are allocated with __get_free_pages() using BOUNCE_BUFFER_ORDER (order 2 = 4 pages), but both the allocation error path and nx842_crypto_free_ctx() release the buffers with free_page(). Use free_pages() with the matching order instead.
A vulnerability has been identified in the Linux kernel's crypto NX component, specifically in the handling of bounce buffers within the NX842 crypto context allocation and deallocation functions. The issue arises because the bounce buffers are allocated using the __get_free_pages() function with an order that allocates four pages, but are released with free_page(), which does not match the allocation order. This mismatch can lead to memory management issues. The vulnerability affects the Linux kernel stable tree.
The vulnerability has been addressed by modifying the NX842 crypto allocation and deallocation functions to use free_pages() with the correct order, ensuring that the released buffers match the original allocation. Users can apply the latest patches available in the Linux kernel stable tree to remediate this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/5c07962fed66e1238fad7635fa150570bd38b4c5 | kernel.org | Patch |
| https://git.kernel.org/stable/c/80fd99d7c30ea889662d21f1b44d8fea4c83138d | kernel.org | Patch |
| https://git.kernel.org/stable/c/910bb34b801d39794e656f7d48414844b2bd354e | kernel.org | Patch |
| https://git.kernel.org/stable/c/adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c | kernel.org | Patch |
| https://git.kernel.org/stable/c/f17a4850d1ce7c11cba8b1830b9bfedfede878bb | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 4.2, < 6.6.141 >= 6.7, < 6.12.88 >= 6.13, < 6.18.27 >= 6.19, < 7.0.4 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 24, 2026 | Initial Analysis | [email protected] |
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 27, 2026 | New CVE Received | kernel.org |