What’s Vulnerable › Vulnerabilities

CVE-2026-46068: crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-27 · updated 2026-06-24
• Weakness: CWE-787

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.

Affected products

• Linux kernel: from 4.2 before 6.6.141; from 6.7 before 6.12.88; from 6.13 before 6.18.27; from 6.19 before 7.0.4 — fixed in 6.12.88, 6.18.27, 6.6.141, 7.0.4

How to fix

Upgrade to a fixed version: Linux kernel 6.12.88, 6.18.27, 6.6.141, 7.0.4. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/5c07962fed66e1238fad7635fa150570bd38b4c5
• https://git.kernel.org/stable/c/80fd99d7c30ea889662d21f1b44d8fea4c83138d
• https://git.kernel.org/stable/c/910bb34b801d39794e656f7d48414844b2bd354e
• https://git.kernel.org/stable/c/adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c
• https://git.kernel.org/stable/c/f17a4850d1ce7c11cba8b1830b9bfedfede878bb

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