CVE-2026-68332

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68332", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.383Z", "datePublished": "2026-08-10T12:03:08.525Z", "dateUpdated": "2026-08-17T05:03:30.927Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:03:30.927Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: airoha: Fix potential use-after-free in airoha_ppe_deinit()\n\nairoha_ppe_deinit() replaces the NPU pointer with NULL via\nrcu_replace_pointer() but does not wait for existing RCU readers\nto exit before calling ppe_deinit() and airoha_npu_put(). This can\ncause a use-after-free if a reader in an RCU read-side critical\nsection still holds a reference to the NPU when it is freed.\n\nThe init path (airoha_ppe_init) already calls synchronize_rcu()\nafter rcu_assign_pointer(), but the deinit path introduced in\ncommit 6abcf751bc08 (\"net: airoha: Fix schedule while atomic in\nairoha_ppe_deinit()\") omitted the matching barrier when switching\nfrom rcu_read_lock()/rcu_dereference() to rcu_replace_pointer().\n\nAdd synchronize_rcu() before ppe_deinit() to ensure all existing\nRCU readers have completed before the NPU resources are released."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/airoha/airoha_ppe.c"], "versions": [{"version": "72f93dc6d1a6b157e0c3d247085c74935893cca0", "lessThan": "46e3bed4b071095ecc9384a7b349e1908728531f", "status": "affected", "versionType": "git"}, {"version": "6abcf751bc084804a9e5b3051442e8a2ce67f48a", "lessThan": "ad28c4f9e0eae4993cb3fde3e7cea330acd8b97c", "status": "affected", "versionType": "git"}, {"version": "6abcf751bc084804a9e5b3051442e8a2ce67f48a", "lessThan": "2484568a335cd7bda951c75b3a7d95ea36161ae7", "status": "affected", "versionType": "git"}, {"version": "6.18.6", "lessThan": "6.18.42", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/airoha/airoha_ppe.c"], "versions": [{"version": "6.19", "status": "affected"}, {"version": "0", "lessThan": "6.19", "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": "6.18.6", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/46e3bed4b071095ecc9384a7b349e1908728531f"}, {"url": "https://git.kernel.org/stable/c/ad28c4f9e0eae4993cb3fde3e7cea330acd8b97c"}, {"url": "https://git.kernel.org/stable/c/2484568a335cd7bda951c75b3a7d95ea36161ae7"}], "title": "net: airoha: Fix potential use-after-free in airoha_ppe_deinit()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/airoha/airoha_ppe.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "46e3bed4b071095ecc9384a7b349e1908728531f", "status": "affected", "version": "72f93dc6d1a6b157e0c3d247085c74935893cca0", "versionType": "git"}, {"lessThan": "ad28c4f9e0eae4993cb3fde3e7cea330acd8b97c", "status": "affected", "version": "6abcf751bc084804a9e5b3051442e8a2ce67f48a", "versionType": "git"}, {"lessThan": "2484568a335cd7bda951c75b3a7d95ea36161ae7", "status": "affected", "version": "6abcf751bc084804a9e5b3051442e8a2ce67f48a", "versionType": "git"}, {"lessThan": "6.18.42", "status": "affected", "version": "6.18.6", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/airoha/airoha_ppe.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.19"}, {"lessThan": "6.19", "status": "unaffected", "version": "0", "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\nnet: airoha: Fix potential use-after-free in airoha_ppe_deinit()\n\nairoha_ppe_deinit() replaces the NPU pointer with NULL via\nrcu_replace_pointer() but does not wait for existing RCU readers\nto exit before calling ppe_deinit() and airoha_npu_put(). This can\ncause a use-after-free if a reader in an RCU read-side critical\nsection still holds a reference to the NPU when it is freed.\n\nThe init path (airoha_ppe_init) already calls synchronize_rcu()\nafter rcu_assign_pointer(), but the deinit path introduced in\ncommit 6abcf751bc08 (\"net: airoha: Fix schedule while atomic in\nairoha_ppe_deinit()\") omitted the matching barrier when switching\nfrom rcu_read_lock()/rcu_dereference() to rcu_replace_pointer().\n\nAdd synchronize_rcu() before ppe_deinit() to ensure all existing\nRCU readers have completed before the NPU resources are released."}], "id": "CVE-2026-68332", "lastModified": "2026-08-17T06:17:41.317", "metrics": {}, "published": "2026-08-10T13:20:23.523", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2484568a335cd7bda951c75b3a7d95ea36161ae7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/46e3bed4b071095ecc9384a7b349e1908728531f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ad28c4f9e0eae4993cb3fde3e7cea330acd8b97c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: airoha driver use-after-free vulnerability", "id": "2513334", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513334"}, "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-414", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: airoha: Fix potential use-after-free in airoha_ppe_deinit()\nairoha_ppe_deinit() replaces the NPU pointer with NULL via\nrcu_replace_pointer() but does not wait for existing RCU readers\nto exit before calling ppe_deinit() and airoha_npu_put(). This can\ncause a use-after-free if a reader in an RCU read-side critical\nsection still holds a reference to the NPU when it is freed.\nThe init path (airoha_ppe_init) already calls synchronize_rcu()\nafter rcu_assign_pointer(), but the deinit path introduced in\ncommit 6abcf751bc08 (\"net: airoha: Fix schedule while atomic in\nairoha_ppe_deinit()\") omitted the matching barrier when switching\nfrom rcu_read_lock()/rcu_dereference() to rcu_replace_pointer().\nAdd synchronize_rcu() before ppe_deinit() to ensure all existing\nRCU readers have completed before the NPU resources are released.", "A flaw was found in the `airoha` network driver within the Linux kernel. This vulnerability, a use-after-free, occurs because the `airoha_ppe_deinit()` function fails to properly synchronize memory deallocation with ongoing operations. An attacker could potentially exploit this to cause system instability or a denial of service."], "name": "CVE-2026-68332", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-10T12:03:08Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68332\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68332\nhttps://git.kernel.org/stable/c/2484568a335cd7bda951c75b3a7d95ea36161ae7\nhttps://git.kernel.org/stable/c/46e3bed4b071095ecc9384a7b349e1908728531f\nhttps://git.kernel.org/stable/c/ad28c4f9e0eae4993cb3fde3e7cea330acd8b97c"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[72f93dc6d1a6b157e0c3d247085c74935893cca0,46e3bed4b071095ecc9384a7b349e1908728531f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6abcf751bc084804a9e5b3051442e8a2ce67f48a,ad28c4f9e0eae4993cb3fde3e7cea330acd8b97c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6abcf751bc084804a9e5b3051442e8a2ce67f48a,2484568a335cd7bda951c75b3a7d95ea36161ae7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.18.6,6.18.42)"}}], "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": "6.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.19)"}}, {"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": "semver", "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": "2026-08-10T17:00:03.763014+00:00", "updated": "2026-08-13T06:30:05.410210+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}