CVE-2023-53638

In the Linux kernel, the following vulnerability has been resolved: octeon_ep: cancel queued works in probe error path If it fails to get the devices's MAC address, octep_probe exits while leaving the delayed work intr_poll_task queued. When the work later runs, it's a use after free. Move the cancelation of intr_poll_task from octep_remove into octep_device_cleanup. This does not change anything in the octep_remove flow, but octep_device_cleanup is called also in the octep_probe error path, where the cancelation is needed. Note that the cancelation of ctrl_mbox_task has to follow intr_poll_task's, because the ctrl_mbox_task may be queued by intr_poll_task.

CVSS v3 7.0 HIGH

7.0^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

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/62312e2f6466b5f0a120542a38b410d88a34ed00	Patch
https://git.kernel.org/stable/c/758c91078165ae641b698750a72eafe7968b3756	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.5:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.5:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.5:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.5:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.5:rc5::::::
	cpe:2.3:o:linux:linux_kernel:6.5:rc6::::::

History

No history.

Information

Published : 2025-10-07 16:15

Updated : 2026-08-04 10:19

NVD link : CVE-2023-53638

Mitre link : CVE-2023-53638

CVE.ORG link : CVE-2023-53638

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

{"id": "CVE-2023-53638", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.0, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.0}, {"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": "24d4333233b378114106a1327d3d635a004f4387", "lessThan": "62312e2f6466b5f0a120542a38b410d88a34ed00", "versionType": "git"}, {"status": "affected", "version": "24d4333233b378114106a1327d3d635a004f4387", "lessThan": "758c91078165ae641b698750a72eafe7968b3756", "versionType": "git"}], "programFiles": ["drivers/net/ethernet/marvell/octeon_ep/octep_main.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.4"}, {"status": "unaffected", "version": "0", "lessThan": "6.4", "versionType": "semver"}, {"status": "unaffected", "version": "6.4.12", "versionType": "semver", "lessThanOrEqual": "6.4.*"}, {"status": "unaffected", "version": "6.5", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/ethernet/marvell/octeon_ep/octep_main.c"], "defaultStatus": "affected"}]}], "published": "2025-10-07T16:15:47.017", "references": [{"url": "https://git.kernel.org/stable/c/62312e2f6466b5f0a120542a38b410d88a34ed00", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/758c91078165ae641b698750a72eafe7968b3756", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "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\nocteon_ep: cancel queued works in probe error path\n\nIf it fails to get the devices's MAC address, octep_probe exits while\nleaving the delayed work intr_poll_task queued. When the work later\nruns, it's a use after free.\n\nMove the cancelation of intr_poll_task from octep_remove into\noctep_device_cleanup. This does not change anything in the octep_remove\nflow, but octep_device_cleanup is called also in the octep_probe error\npath, where the cancelation is needed.\n\nNote that the cancelation of ctrl_mbox_task has to follow\nintr_poll_task's, because the ctrl_mbox_task may be queued by\nintr_poll_task."}], "lastModified": "2026-08-04T10:19:15.800", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "03930E62-D711-4E00-A788-FFDE0D27F98C", "versionEndExcluding": "6.4.12", "versionStartIncluding": "6.4"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0B3E6E4D-E24E-4630-B00C-8C9901C597B0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E4A01A71-0F09-4DB2-A02F-7EFFBE27C98D"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F5608371-157A-4318-8A2E-4104C3467EA1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2226A776-DF8C-49E0-A030-0A7853BB018A"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6F15C659-DF06-455A-9765-0E6DE920F29A"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5B1C14ED-ABC4-41D3-8D9C-D38C6A65B4DE"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}