CVE-2026-53120

In the Linux kernel, the following vulnerability has been resolved: PCI: use generic driver_override infrastructure When a driver is probed through __driver_attach(), the bus' match() callback is called without the device lock held, thus accessing the driver_override field without a lock, which can cause a UAF. Fix this by using the driver-core driver_override infrastructure taking care of proper locking internally. Note that calling match() from __driver_attach() without the device lock held is intentional. [1]

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/10a4206a24013be4d558d476010cbf2eb4c9fa64	Patch
https://git.kernel.org/stable/c/58a42be0d70307d765594fc581f5f5e5ef059712	Patch
https://git.kernel.org/stable/c/c5b2c5755495507e14f310c2653c85de0a309b1f	Patch
https://git.kernel.org/stable/c/dfe950d9464cad609f3b118c6203e2708055bc61	Patch
https://git.kernel.org/stable/c/fdfa287956d00b936e0ac409b21e4f90501ad109

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::::::::

History

21 Oct 2026, 13:19

Type	Values Removed	Values Added
References		() https://git.kernel.org/stable/c/fdfa287956d00b936e0ac409b21e4f90501ad109 -

Information

Published : 2026-06-24 17:17

Updated : 2026-11-06 17:18

NVD link : CVE-2026-53120

Mitre link : CVE-2026-53120

CVE.ORG link : CVE-2026-53120

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

{"id": "CVE-2026-53120", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-53120", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-06T16:19:46.121177Z"}}], "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": "782a985d7af26db39e86070d28f987cad21313c0", "lessThan": "fdfa287956d00b936e0ac409b21e4f90501ad109", "versionType": "git"}, {"status": "affected", "version": "782a985d7af26db39e86070d28f987cad21313c0", "lessThan": "dfe950d9464cad609f3b118c6203e2708055bc61", "versionType": "git"}, {"status": "affected", "version": "782a985d7af26db39e86070d28f987cad21313c0", "lessThan": "58a42be0d70307d765594fc581f5f5e5ef059712", "versionType": "git"}, {"status": "affected", "version": "782a985d7af26db39e86070d28f987cad21313c0", "lessThan": "c5b2c5755495507e14f310c2653c85de0a309b1f", "versionType": "git"}, {"status": "affected", "version": "782a985d7af26db39e86070d28f987cad21313c0", "lessThan": "10a4206a24013be4d558d476010cbf2eb4c9fa64", "versionType": "git"}], "programFiles": ["drivers/pci/pci-driver.c", "drivers/pci/pci-sysfs.c", "drivers/pci/probe.c", "drivers/vfio/pci/vfio_pci_core.c", "drivers/xen/xen-pciback/pci_stub.c", "include/linux/pci.h"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.16"}, {"status": "unaffected", "version": "0", "lessThan": "3.16", "versionType": "semver"}, {"status": "unaffected", "version": "6.6.160", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.91", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.33", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.10", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/pci/pci-driver.c", "drivers/pci/pci-sysfs.c", "drivers/pci/probe.c", "drivers/vfio/pci/vfio_pci_core.c", "drivers/xen/xen-pciback/pci_stub.c", "include/linux/pci.h"], "defaultStatus": "affected"}]}], "published": "2026-06-24T17:17:26.380", "references": [{"url": "https://git.kernel.org/stable/c/10a4206a24013be4d558d476010cbf2eb4c9fa64", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/58a42be0d70307d765594fc581f5f5e5ef059712", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c5b2c5755495507e14f310c2653c85de0a309b1f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/dfe950d9464cad609f3b118c6203e2708055bc61", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/fdfa287956d00b936e0ac409b21e4f90501ad109", "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\nPCI: use generic driver_override infrastructure\n\nWhen a driver is probed through __driver_attach(), the bus' match()\ncallback is called without the device lock held, thus accessing the\ndriver_override field without a lock, which can cause a UAF.\n\nFix this by using the driver-core driver_override infrastructure taking\ncare of proper locking internally.\n\nNote that calling match() from __driver_attach() without the device lock\nheld is intentional. [1]"}], "lastModified": "2026-11-06T17:18:08.280", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6F5D6302-DDBA-456B-98B1-3CE8922EC0FF", "versionEndExcluding": "6.12.91", "versionStartIncluding": "3.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "96D99E49-380D-43AB-BDBA-25C3AD018A9C", "versionEndExcluding": "6.18.33", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A13475D2-59BF-4716-94B5-7C1D239A2CF4", "versionEndExcluding": "7.0.10", "versionStartIncluding": "6.19"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}