CVE-2026-46068

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2026-05-27 14:17

Updated : 2026-06-24 17:03

NVD link : CVE-2026-46068

Mitre link : CVE-2026-46068

CVE.ORG link : CVE-2026-46068

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-787

Out-of-bounds Write

{"id": "CVE-2026-46068", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "ed70b479c2c0b6e1319f0cb2de19f1051be219a4", "lessThan": "f17a4850d1ce7c11cba8b1830b9bfedfede878bb", "versionType": "git"}, {"status": "affected", "version": "ed70b479c2c0b6e1319f0cb2de19f1051be219a4", "lessThan": "910bb34b801d39794e656f7d48414844b2bd354e", "versionType": "git"}, {"status": "affected", "version": "ed70b479c2c0b6e1319f0cb2de19f1051be219a4", "lessThan": "5c07962fed66e1238fad7635fa150570bd38b4c5", "versionType": "git"}, {"status": "affected", "version": "ed70b479c2c0b6e1319f0cb2de19f1051be219a4", "lessThan": "80fd99d7c30ea889662d21f1b44d8fea4c83138d", "versionType": "git"}, {"status": "affected", "version": "ed70b479c2c0b6e1319f0cb2de19f1051be219a4", "lessThan": "adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c", "versionType": "git"}], "programFiles": ["drivers/crypto/nx/nx-842.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.2"}, {"status": "unaffected", "version": "0", "lessThan": "4.2", "versionType": "semver"}, {"status": "unaffected", "version": "6.6.141", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.88", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.27", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.4", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/crypto/nx/nx-842.c"], "defaultStatus": "affected"}]}], "published": "2026-05-27T14:17:27.940", "references": [{"url": "https://git.kernel.org/stable/c/5c07962fed66e1238fad7635fa150570bd38b4c5", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/80fd99d7c30ea889662d21f1b44d8fea4c83138d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/910bb34b801d39794e656f7d48414844b2bd354e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f17a4850d1ce7c11cba8b1830b9bfedfede878bb", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Undergoing Analysis", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx\n\nThe bounce buffers are allocated with __get_free_pages() using\nBOUNCE_BUFFER_ORDER (order 2 = 4 pages), but both the allocation error\npath and nx842_crypto_free_ctx() release the buffers with free_page().\nUse free_pages() with the matching order instead."}], "lastModified": "2026-06-24T17:03:51.660", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EF97161C-1BB5-4ADC-A7BA-2A18D7A44511", "versionEndExcluding": "6.6.141", "versionStartIncluding": "4.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5AFBE0EC-CCDF-4207-AE92-ABF958125CA4", "versionEndExcluding": "6.12.88", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A10AC84F-C058-47D5-85B4-E6E51A613B74", "versionEndExcluding": "6.18.27", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CDB78D6D-22C3-4154-B0D0-94AF1CE5C2E3", "versionEndExcluding": "7.0.4", "versionStartIncluding": "6.19"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}