CVE-2026-46075

In the Linux kernel, the following vulnerability has been resolved: crypto: atmel-sha204a - Fix potential UAF and memory leak in remove path Unregister the hwrng to prevent new ->read() calls and flush the Atmel I2C workqueue before teardown to prevent a potential UAF if a queued callback runs while the device is being removed. Drop the early return to ensure sysfs entries are removed and ->hwrng.priv is freed, preventing a memory leak.

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/1193c12126d39bf986a5a9214827b73707b193ab	Patch
https://git.kernel.org/stable/c/31901371ccd16b42d2f167b1018ba9ae8bd5a6c7	Patch
https://git.kernel.org/stable/c/6dbeb0f788582e1ab5dfc3f41994eac0ec88c2b5	Patch
https://git.kernel.org/stable/c/775c00d87c385b758da9504cf053acea00e2ed40	Patch
https://git.kernel.org/stable/c/bab1adf3b87e4bfac92c4f5963c63db434d561c1	Patch
https://git.kernel.org/stable/c/c5a45d14234bf26e28a89e3a5dcc08336595cf11	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::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2026-05-27 14:17

Updated : 2026-06-24 16:59

NVD link : CVE-2026-46075

Mitre link : CVE-2026-46075

CVE.ORG link : CVE-2026-46075

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

{"id": "CVE-2026-46075", "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": "da001fb651b00e1deeaf24767dd691ae8152a4f5", "lessThan": "6dbeb0f788582e1ab5dfc3f41994eac0ec88c2b5", "versionType": "git"}, {"status": "affected", "version": "da001fb651b00e1deeaf24767dd691ae8152a4f5", "lessThan": "c5a45d14234bf26e28a89e3a5dcc08336595cf11", "versionType": "git"}, {"status": "affected", "version": "da001fb651b00e1deeaf24767dd691ae8152a4f5", "lessThan": "775c00d87c385b758da9504cf053acea00e2ed40", "versionType": "git"}, {"status": "affected", "version": "da001fb651b00e1deeaf24767dd691ae8152a4f5", "lessThan": "1193c12126d39bf986a5a9214827b73707b193ab", "versionType": "git"}, {"status": "affected", "version": "da001fb651b00e1deeaf24767dd691ae8152a4f5", "lessThan": "31901371ccd16b42d2f167b1018ba9ae8bd5a6c7", "versionType": "git"}, {"status": "affected", "version": "da001fb651b00e1deeaf24767dd691ae8152a4f5", "lessThan": "bab1adf3b87e4bfac92c4f5963c63db434d561c1", "versionType": "git"}], "programFiles": ["drivers/crypto/atmel-sha204a.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.3"}, {"status": "unaffected", "version": "0", "lessThan": "5.3", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.175", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.140", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.86", "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/atmel-sha204a.c"], "defaultStatus": "affected"}]}], "published": "2026-05-27T14:17:28.823", "references": [{"url": "https://git.kernel.org/stable/c/1193c12126d39bf986a5a9214827b73707b193ab", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/31901371ccd16b42d2f167b1018ba9ae8bd5a6c7", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6dbeb0f788582e1ab5dfc3f41994eac0ec88c2b5", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/775c00d87c385b758da9504cf053acea00e2ed40", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/bab1adf3b87e4bfac92c4f5963c63db434d561c1", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c5a45d14234bf26e28a89e3a5dcc08336595cf11", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Undergoing Analysis", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: atmel-sha204a - Fix potential UAF and memory leak in remove path\n\nUnregister the hwrng to prevent new ->read() calls and flush the Atmel\nI2C workqueue before teardown to prevent a potential UAF if a queued\ncallback runs while the device is being removed.\n\nDrop the early return to ensure sysfs entries are removed and\n->hwrng.priv is freed, preventing a memory leak."}], "lastModified": "2026-06-24T16:59:08.560", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "38FC5C77-ECE1-4E84-B543-2BE911AF89E8", "versionEndExcluding": "6.1.175", "versionStartIncluding": "5.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A1A92866-F406-43B5-B2D1-CFC274753E9D", "versionEndExcluding": "6.6.140", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "55DA1C62-9991-451E-B8A8-E0004E00F789", "versionEndExcluding": "6.12.86", "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"}