VulnerabilityPublished 27 May 2026Updated 6 Nov 2026

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

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in f17a4850d1ce7c11cba8b1830b9bfedfede878bb : update Linux kernel when convenient.

Data as of 6 Nov 2026, 16:34 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch

Available – fixed in f17a4850d1ce7c11cba8b1830b9bfedfede878bb, adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c, 910bb34b801d39794e656f7d48414844b2bd354e +2

Exploitation evidence

Disclosed: evidence found.
CVE published 27 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ ed70b479c2c0b6e1319f0cb2de19f1051be219a4, < f17a4850d1ce7c11cba8b1830b9bfedfede878bb	Fixed in f17a4850d1ce7c11cba8b1830b9bfedfede878bb
LinuxLinux	Affected ≥ ed70b479c2c0b6e1319f0cb2de19f1051be219a4, < adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c	Fixed in adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c
LinuxLinux	Affected ≥ ed70b479c2c0b6e1319f0cb2de19f1051be219a4, < 910bb34b801d39794e656f7d48414844b2bd354e	Fixed in 910bb34b801d39794e656f7d48414844b2bd354e
LinuxLinux	Affected ≥ ed70b479c2c0b6e1319f0cb2de19f1051be219a4, < 80fd99d7c30ea889662d21f1b44d8fea4c83138d	Fixed in 80fd99d7c30ea889662d21f1b44d8fea4c83138d
LinuxLinux	Affected ≥ ed70b479c2c0b6e1319f0cb2de19f1051be219a4, < 5c07962fed66e1238fad7635fa150570bd38b4c5	Fixed in 5c07962fed66e1238fad7635fa150570bd38b4c5
LinuxLinux	Affected =4.2	Fixed in–

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.

References

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