CVE-2026-53087

In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix leaking free_bds While reclaiming the tx queue we fast forward the write pointer to drop any data in flight. These dropped frames are not added back to the pool of free bds. We also need to tell the netdev that we are dropping said data.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/150d06aae1839a6564ab200ef0e7291c3528bbb0	Patch
https://git.kernel.org/stable/c/25ff3a3e47ea635ec08dc93e84dd2bfe15abfebb	Patch
https://git.kernel.org/stable/c/3c3abbcfa05bad17965498ff7cc94c2418fa94b3	Patch
https://git.kernel.org/stable/c/3f3168300efb839028328d720ab3962f91d6a0d0	Patch
https://git.kernel.org/stable/c/52b9f80993698138b90e5ca3a72550a2501f2a96	Patch
https://git.kernel.org/stable/c/ac4a29c331ecb5b10240c44247a8e010c95bc15b	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2026-06-24 17:17

Updated : 2026-07-23 18:35

NVD link : CVE-2026-53087

Mitre link : CVE-2026-53087

CVE.ORG link : CVE-2026-53087

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

{"id": "CVE-2026-53087", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "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": "6a84791b63044cdee3ab55eb350e6352b751f584", "lessThan": "150d06aae1839a6564ab200ef0e7291c3528bbb0", "versionType": "git"}, {"status": "affected", "version": "991cd78f95f2a1d6097669afaff66aeeba35f5fd", "lessThan": "52b9f80993698138b90e5ca3a72550a2501f2a96", "versionType": "git"}, {"status": "affected", "version": "3877efc13053408f4cf2e821006d6ddd1929200f", "lessThan": "3c3abbcfa05bad17965498ff7cc94c2418fa94b3", "versionType": "git"}, {"status": "affected", "version": "f1bacae8b655163dcbc3c54b9e714ef1a8986d7b", "lessThan": "25ff3a3e47ea635ec08dc93e84dd2bfe15abfebb", "versionType": "git"}, {"status": "affected", "version": "f1bacae8b655163dcbc3c54b9e714ef1a8986d7b", "lessThan": "ac4a29c331ecb5b10240c44247a8e010c95bc15b", "versionType": "git"}, {"status": "affected", "version": "f1bacae8b655163dcbc3c54b9e714ef1a8986d7b", "lessThan": "3f3168300efb839028328d720ab3962f91d6a0d0", "versionType": "git"}], "programFiles": ["drivers/net/ethernet/broadcom/genet/bcmgenet.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.15"}, {"status": "unaffected", "version": "0", "lessThan": "6.15", "versionType": "semver"}, {"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/net/ethernet/broadcom/genet/bcmgenet.c"], "defaultStatus": "affected"}]}], "published": "2026-06-24T17:17:22.880", "references": [{"url": "https://git.kernel.org/stable/c/150d06aae1839a6564ab200ef0e7291c3528bbb0", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/25ff3a3e47ea635ec08dc93e84dd2bfe15abfebb", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/3c3abbcfa05bad17965498ff7cc94c2418fa94b3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/3f3168300efb839028328d720ab3962f91d6a0d0", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/52b9f80993698138b90e5ca3a72550a2501f2a96", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ac4a29c331ecb5b10240c44247a8e010c95bc15b", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-401"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bcmgenet: fix leaking free_bds\n\nWhile reclaiming the tx queue we fast forward the write pointer to\ndrop any data in flight. These dropped frames are not added back\nto the pool of free bds. We also need to tell the netdev that we\nare dropping said data."}], "lastModified": "2026-07-23T18:35:33.387", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "986D4552-0ECA-40C4-9708-6D088AC7A485", "versionEndExcluding": "6.18.33", "versionStartIncluding": "6.15"}, {"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"}