CVE-2025-37802

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix WARNING "do not call blocking ops when !TASK_RUNNING" wait_event_timeout() will set the state of the current task to TASK_UNINTERRUPTIBLE, before doing the condition check. This means that ksmbd_durable_scavenger_alive() will try to acquire the mutex while already in a sleeping state. The scheduler warns us by giving the following warning: do not call blocking ops when !TASK_RUNNING; state=2 set at [<0000000061515a6f>] prepare_to_wait_event+0x9f/0x6c0 WARNING: CPU: 2 PID: 4147 at kernel/sched/core.c:10099 __might_sleep+0x12f/0x160 mutex lock is not needed in ksmbd_durable_scavenger_alive().

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/1df0d4c616138784e033ad337961b6e1a6bcd999	Patch
https://git.kernel.org/stable/c/8f805b3746d2f41702c77cba22f94f8415fadd1a	Patch
https://git.kernel.org/stable/c/cd161198e091e8a62b9bd631be970ea9a87d2d6a	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:6.15:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.15:rc2::::::

History

05 Jun 2025, 14:32

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-05-08 07:15

Updated : 2025-06-05 14:32

NVD link : CVE-2025-37802

Mitre link : CVE-2025-37802

CVE.ORG link : CVE-2025-37802

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-667

Improper Locking

{"id": "CVE-2025-37802", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "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": "2025-05-08T07:15:51.363", "references": [{"url": "https://git.kernel.org/stable/c/1df0d4c616138784e033ad337961b6e1a6bcd999", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8f805b3746d2f41702c77cba22f94f8415fadd1a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/cd161198e091e8a62b9bd631be970ea9a87d2d6a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-667"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix WARNING \"do not call blocking ops when !TASK_RUNNING\"\n\nwait_event_timeout() will set the state of the current\ntask to TASK_UNINTERRUPTIBLE, before doing the condition check. This\nmeans that ksmbd_durable_scavenger_alive() will try to acquire the mutex\nwhile already in a sleeping state. The scheduler warns us by giving\nthe following warning:\n\ndo not call blocking ops when !TASK_RUNNING; state=2 set at\n [<0000000061515a6f>] prepare_to_wait_event+0x9f/0x6c0\nWARNING: CPU: 2 PID: 4147 at kernel/sched/core.c:10099 __might_sleep+0x12f/0x160\n\nmutex lock is not needed in ksmbd_durable_scavenger_alive()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ksmbd: correcci\u00f3n de la ADVERTENCIA \"no llamar a operaciones de bloqueo cuando !TASK_RUNNING\" wait_event_timeout() establecer\u00e1 el estado de la tarea actual en TASK_UNINTERRUPTIBLE antes de realizar la comprobaci\u00f3n de condici\u00f3n. Esto significa que ksmbd_durable_scavenger_alive() intentar\u00e1 adquirir el mutex mientras ya est\u00e1 en estado de suspensi\u00f3n. El programador nos advierte con la siguiente advertencia: no llamar a operaciones de bloqueo cuando !TASK_RUNNING; estado=2 establecido en [<0000000061515a6f>] prepare_to_wait_event+0x9f/0x6c0 ADVERTENCIA: CPU: 2 PID: 4147 en kernel/sched/core.c:10099 __might_sleep+0x12f/0x160 El bloqueo mutex no es necesario en ksmbd_durable_scavenger_alive()."}], "lastModified": "2025-06-05T14:32:23.670", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "505F343C-3DE3-4984-A2E0-52BAFF9CC7CE", "versionEndExcluding": "6.12.26"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6B25CA7E-4CD0-46DB-B4EF-13A3516071FB", "versionEndExcluding": "6.14.5", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8D465631-2980-487A-8E65-40AE2B9F8ED1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4C9D071F-B28E-46EC-AC61-22B913390211"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}