CVE-2024-26946

In the Linux kernel, the following vulnerability has been resolved: kprobes/x86: Use copy_from_kernel_nofault() to read from unsafe address Read from an unsafe address with copy_from_kernel_nofault() in arch_adjust_kprobe_addr() because this function is used before checking the address is in text or not. Syzcaller bot found a bug and reported the case if user specifies inaccessible data area, arch_adjust_kprobe_addr() will cause a kernel panic. [ mingo: Clarified the comment. ]

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/20fdb21eabaeb8f78f8f701f56d14ea0836ec861	Patch
https://git.kernel.org/stable/c/4e51653d5d871f40f1bd5cf95cc7f2d8b33d063b	Patch
https://git.kernel.org/stable/c/6417684315087904fffe8966d27ca74398c57dd6	Patch
https://git.kernel.org/stable/c/b69f577308f1070004cafac106dd1a44099e5483	Patch
https://git.kernel.org/stable/c/f13edd1871d4fb4ab829aff629d47914e251bae3	Patch
https://git.kernel.org/stable/c/20fdb21eabaeb8f78f8f701f56d14ea0836ec861	Patch
https://git.kernel.org/stable/c/4e51653d5d871f40f1bd5cf95cc7f2d8b33d063b	Patch
https://git.kernel.org/stable/c/6417684315087904fffe8966d27ca74398c57dd6	Patch
https://git.kernel.org/stable/c/b69f577308f1070004cafac106dd1a44099e5483	Patch
https://git.kernel.org/stable/c/f13edd1871d4fb4ab829aff629d47914e251bae3	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 : 2024-05-01 06:15

Updated : 2025-09-18 14:14

NVD link : CVE-2024-26946

Mitre link : CVE-2024-26946

CVE.ORG link : CVE-2024-26946

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-617

Reachable Assertion

{"id": "CVE-2024-26946", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2024-05-01T06:15:10.480", "references": [{"url": "https://git.kernel.org/stable/c/20fdb21eabaeb8f78f8f701f56d14ea0836ec861", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/4e51653d5d871f40f1bd5cf95cc7f2d8b33d063b", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6417684315087904fffe8966d27ca74398c57dd6", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b69f577308f1070004cafac106dd1a44099e5483", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f13edd1871d4fb4ab829aff629d47914e251bae3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/20fdb21eabaeb8f78f8f701f56d14ea0836ec861", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/4e51653d5d871f40f1bd5cf95cc7f2d8b33d063b", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/6417684315087904fffe8966d27ca74398c57dd6", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/b69f577308f1070004cafac106dd1a44099e5483", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/f13edd1871d4fb4ab829aff629d47914e251bae3", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-617"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nkprobes/x86: Use copy_from_kernel_nofault() to read from unsafe address\n\nRead from an unsafe address with copy_from_kernel_nofault() in\narch_adjust_kprobe_addr() because this function is used before checking\nthe address is in text or not. Syzcaller bot found a bug and reported\nthe case if user specifies inaccessible data area,\narch_adjust_kprobe_addr() will cause a kernel panic.\n\n[ mingo: Clarified the comment. ]"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: kprobes/x86: use copy_from_kernel_nofault() para leer desde una direcci\u00f3n no segura Lea desde una direcci\u00f3n no segura con copy_from_kernel_nofault() en arch_adjust_kprobe_addr() porque esta funci\u00f3n se usa antes de verificar que la direcci\u00f3n est\u00e9 en texto O no. El bot Syzcaller encontr\u00f3 un error e inform\u00f3 el caso si el usuario especifica un \u00e1rea de datos inaccesible, arch_adjust_kprobe_addr() provocar\u00e1 un p\u00e1nico en el kernel. [ mingo: Aclar\u00f3 el comentario. ]"}], "lastModified": "2025-09-18T14:14:52.610", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CE167D76-7275-482B-ABF1-1BF9AB18A64F", "versionEndExcluding": "6.1.84", "versionStartIncluding": "5.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8018C1D0-0A5F-48D0-BC72-A2B33FDDA693", "versionEndExcluding": "6.6.24", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6BE9771A-BAFD-4624-95F9-58D536540C53", "versionEndExcluding": "6.7.12", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4C59BBC3-6495-4A77-9C82-55EC7CDF5E02", "versionEndExcluding": "6.8.3", "versionStartIncluding": "6.8"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}