CVE-2026-68331

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68331", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.383Z", "datePublished": "2026-08-10T12:03:07.529Z", "dateUpdated": "2026-08-19T16:33:28.174Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-19T16:33:28.174Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-eth: put MAC endpoint device on disconnect\n\nfsl_mc_get_endpoint() returns the MAC endpoint device with a reference\ntaken through device_find_child(). The Ethernet connect path stores that\ndevice in mac->mc_dev and keeps it for the lifetime of the connected MAC\nobject.\n\nHowever, the disconnect path only disconnects and closes the MAC before\nfreeing the dpaa2_mac object. It does not drop the endpoint device\nreference stored in mac->mc_dev, so every successful connect leaks that\ndevice reference when the MAC is later disconnected.\n\nDrop the endpoint device reference after closing the MAC and before\nfreeing the dpaa2_mac object."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c"], "versions": [{"version": "71947923089353f23f4f210864903c4dcf2c1696", "lessThan": "6b6ffdb9ca4547a3c4c274aa3e25b6c68dbc62e1", "status": "affected", "versionType": "git"}, {"version": "71947923089353f23f4f210864903c4dcf2c1696", "lessThan": "1974127776da46a000c61f36d4946799ea6d4f51", "status": "affected", "versionType": "git"}, {"version": "71947923089353f23f4f210864903c4dcf2c1696", "lessThan": "915012e923316b8b5d5bf8fc771617b47bd7572d", "status": "affected", "versionType": "git"}, {"version": "71947923089353f23f4f210864903c4dcf2c1696", "lessThan": "e23e4a3b9dfd893469c731318d409cdf04fb1ddf", "status": "affected", "versionType": "git"}, {"version": "71947923089353f23f4f210864903c4dcf2c1696", "lessThan": "f112df0744e2d77baa68eeebb860021bbaaa022a", "status": "affected", "versionType": "git"}, {"version": "71947923089353f23f4f210864903c4dcf2c1696", "lessThan": "a3cecf169cc652b558d08661bb6ce55e4c933ec0", "status": "affected", "versionType": "git"}, {"version": "71947923089353f23f4f210864903c4dcf2c1696", "lessThan": "b4b201cc93ff70150853aba03e14d314d1980ca0", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c"], "versions": [{"version": "5.5", "status": "affected"}, {"version": "0", "lessThan": "5.5", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.216", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.183", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.15.216"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.1.183"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6b6ffdb9ca4547a3c4c274aa3e25b6c68dbc62e1"}, {"url": "https://git.kernel.org/stable/c/1974127776da46a000c61f36d4946799ea6d4f51"}, {"url": "https://git.kernel.org/stable/c/915012e923316b8b5d5bf8fc771617b47bd7572d"}, {"url": "https://git.kernel.org/stable/c/e23e4a3b9dfd893469c731318d409cdf04fb1ddf"}, {"url": "https://git.kernel.org/stable/c/f112df0744e2d77baa68eeebb860021bbaaa022a"}, {"url": "https://git.kernel.org/stable/c/a3cecf169cc652b558d08661bb6ce55e4c933ec0"}, {"url": "https://git.kernel.org/stable/c/b4b201cc93ff70150853aba03e14d314d1980ca0"}], "title": "dpaa2-eth: put MAC endpoint device on disconnect", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "6b6ffdb9ca4547a3c4c274aa3e25b6c68dbc62e1", "status": "affected", "version": "71947923089353f23f4f210864903c4dcf2c1696", "versionType": "git"}, {"lessThan": "1974127776da46a000c61f36d4946799ea6d4f51", "status": "affected", "version": "71947923089353f23f4f210864903c4dcf2c1696", "versionType": "git"}, {"lessThan": "915012e923316b8b5d5bf8fc771617b47bd7572d", "status": "affected", "version": "71947923089353f23f4f210864903c4dcf2c1696", "versionType": "git"}, {"lessThan": "e23e4a3b9dfd893469c731318d409cdf04fb1ddf", "status": "affected", "version": "71947923089353f23f4f210864903c4dcf2c1696", "versionType": "git"}, {"lessThan": "f112df0744e2d77baa68eeebb860021bbaaa022a", "status": "affected", "version": "71947923089353f23f4f210864903c4dcf2c1696", "versionType": "git"}, {"lessThan": "a3cecf169cc652b558d08661bb6ce55e4c933ec0", "status": "affected", "version": "71947923089353f23f4f210864903c4dcf2c1696", "versionType": "git"}, {"lessThan": "b4b201cc93ff70150853aba03e14d314d1980ca0", "status": "affected", "version": "71947923089353f23f4f210864903c4dcf2c1696", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.5"}, {"lessThan": "5.5", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.216", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.183", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-eth: put MAC endpoint device on disconnect\n\nfsl_mc_get_endpoint() returns the MAC endpoint device with a reference\ntaken through device_find_child(). The Ethernet connect path stores that\ndevice in mac->mc_dev and keeps it for the lifetime of the connected MAC\nobject.\n\nHowever, the disconnect path only disconnects and closes the MAC before\nfreeing the dpaa2_mac object. It does not drop the endpoint device\nreference stored in mac->mc_dev, so every successful connect leaks that\ndevice reference when the MAC is later disconnected.\n\nDrop the endpoint device reference after closing the MAC and before\nfreeing the dpaa2_mac object."}], "id": "CVE-2026-68331", "lastModified": "2026-08-19T17:20:43.260", "metrics": {}, "published": "2026-08-10T13:20:23.410", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1974127776da46a000c61f36d4946799ea6d4f51"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6b6ffdb9ca4547a3c4c274aa3e25b6c68dbc62e1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/915012e923316b8b5d5bf8fc771617b47bd7572d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a3cecf169cc652b558d08661bb6ce55e4c933ec0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b4b201cc93ff70150853aba03e14d314d1980ca0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e23e4a3b9dfd893469c731318d409cdf04fb1ddf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f112df0744e2d77baa68eeebb860021bbaaa022a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel dpaa2-eth: Denial of Service due to resource leak on MAC endpoint disconnect", "id": "2513191", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513191"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndpaa2-eth: put MAC endpoint device on disconnect\nfsl_mc_get_endpoint() returns the MAC endpoint device with a reference\ntaken through device_find_child(). The Ethernet connect path stores that\ndevice in mac->mc_dev and keeps it for the lifetime of the connected MAC\nobject.\nHowever, the disconnect path only disconnects and closes the MAC before\nfreeing the dpaa2_mac object. It does not drop the endpoint device\nreference stored in mac->mc_dev, so every successful connect leaks that\ndevice reference when the MAC is later disconnected.\nDrop the endpoint device reference after closing the MAC and before\nfreeing the dpaa2_mac object.", "A flaw was found in the Linux kernel's dpaa2-eth component. When a network device connects and then disconnects, a reference to the MAC endpoint device is not properly released. This oversight causes a resource leak with each successful connection and subsequent disconnection. Repeated exploitation of this flaw could lead to resource exhaustion, potentially resulting in a Denial of Service (DoS) for the system."], "name": "CVE-2026-68331", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-10T12:03:07Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68331\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68331\nhttps://git.kernel.org/stable/c/915012e923316b8b5d5bf8fc771617b47bd7572d\nhttps://git.kernel.org/stable/c/a3cecf169cc652b558d08661bb6ce55e4c933ec0\nhttps://git.kernel.org/stable/c/b4b201cc93ff70150853aba03e14d314d1980ca0\nhttps://git.kernel.org/stable/c/e23e4a3b9dfd893469c731318d409cdf04fb1ddf\nhttps://git.kernel.org/stable/c/f112df0744e2d77baa68eeebb860021bbaaa022a"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[71947923089353f23f4f210864903c4dcf2c1696,915012e923316b8b5d5bf8fc771617b47bd7572d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[71947923089353f23f4f210864903c4dcf2c1696,e23e4a3b9dfd893469c731318d409cdf04fb1ddf)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[71947923089353f23f4f210864903c4dcf2c1696,f112df0744e2d77baa68eeebb860021bbaaa022a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[71947923089353f23f4f210864903c4dcf2c1696,a3cecf169cc652b558d08661bb6ce55e4c933ec0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[71947923089353f23f4f210864903c4dcf2c1696,b4b201cc93ff70150853aba03e14d314d1980ca0)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.5"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.5)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.148,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.101,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc5,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-10T17:30:17.999318+00:00", "updated": "2026-08-12T18:30:06.248860+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-400", "CWE-772"]}