{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68378", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.387Z", "datePublished": "2026-08-10T12:03:56.590Z", "dateUpdated": "2026-08-17T05:04:24.219Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:04:24.219Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndpll: fix NULL pointer dereference in dpll_msg_add_pin_ref_sync()\n\nWhen a dpll_pin is shared across multiple dpll_device instances and\nthose devices are being unregistered (e.g. during driver module removal),\na NULL pointer dereference can occur in dpll_msg_add_pin_ref_sync().\n\nThis happens under the following conditions:\n - A pin is registered with two or more dpll devices (dpll_A, dpll_B)\n - The pin has ref_sync pairs with other pins\n - During unregistration of dpll_A's pins, a ref_sync partner pin is\n unregistered first, removing it from dpll_A->pin_refs\n - But since the partner pin is still registered with dpll_B, its\n dpll_refs is not empty, so dpll_pin_ref_sync_pair_del() does NOT\n run and the partner stays in the pin's ref_sync_pins xarray\n - When the pin itself is then unregistered from dpll_A, the delete\n notification calls dpll_msg_add_pin_ref_sync() which finds the\n partner in ref_sync_pins, passes dpll_pin_available() (partner is\n still registered with dpll_B), but dpll_pin_on_dpll_priv(dpll_A,\n partner) returns NULL because partner was already removed from\n dpll_A->pin_refs\n - The NULL priv pointer is passed to the driver's ref_sync_get\n callback, which dereferences it\n\n BUG: kernel NULL pointer dereference, address: 0000000000000034\n Oops: Oops: 0000 [#1] SMP NOPTI\n RIP: 0010:zl3073x_dpll_input_pin_ref_sync_get+0x73/0x80 [zl3073x]\n Call Trace:\n dpll_msg_add_pin_ref_sync+0xb8/0x200\n dpll_cmd_pin_get_one+0x3b6/0x4b0\n dpll_pin_event_send+0x72/0x140\n __dpll_pin_unregister+0x5a/0x2b0\n dpll_pin_unregister+0x49/0x70\n\nFix this by skipping ref_sync pins whose priv pointer cannot be resolved\nfor the current dpll device."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/dpll/dpll_netlink.c"], "versions": [{"version": "40466ea1827c46c6435fab9b21b63b80733e2d07", "lessThan": "66fbe0499ef517ab161b96c49886a891851f6481", "status": "affected", "versionType": "git"}, {"version": "58256a26bfb37a94738dd65618b1f31f460f8d91", "lessThan": "51c2fcc4cd2e4c52bd1970558f6e5356fdc51154", "status": "affected", "versionType": "git"}, {"version": "58256a26bfb37a94738dd65618b1f31f460f8d91", "lessThan": "4b3e6b9fdaeb40c6a2f7c41db3888b6ee628bdd2", "status": "affected", "versionType": "git"}, {"version": "58256a26bfb37a94738dd65618b1f31f460f8d91", "lessThan": "d2e914a4a0d0f753dbae830264850d044026167c", "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/dpll/dpll_netlink.c"], "versions": [{"version": "6.17", "status": "affected"}, {"version": "0", "lessThan": "6.17", "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": "6.17", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/66fbe0499ef517ab161b96c49886a891851f6481"}, {"url": "https://git.kernel.org/stable/c/51c2fcc4cd2e4c52bd1970558f6e5356fdc51154"}, {"url": "https://git.kernel.org/stable/c/4b3e6b9fdaeb40c6a2f7c41db3888b6ee628bdd2"}, {"url": "https://git.kernel.org/stable/c/d2e914a4a0d0f753dbae830264850d044026167c"}], "title": "dpll: fix NULL pointer dereference in dpll_msg_add_pin_ref_sync()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/dpll/dpll_netlink.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "66fbe0499ef517ab161b96c49886a891851f6481", "status": "affected", "version": "40466ea1827c46c6435fab9b21b63b80733e2d07", "versionType": "git"}, {"lessThan": "51c2fcc4cd2e4c52bd1970558f6e5356fdc51154", "status": "affected", "version": "58256a26bfb37a94738dd65618b1f31f460f8d91", "versionType": "git"}, {"lessThan": "4b3e6b9fdaeb40c6a2f7c41db3888b6ee628bdd2", "status": "affected", "version": "58256a26bfb37a94738dd65618b1f31f460f8d91", "versionType": "git"}, {"lessThan": "d2e914a4a0d0f753dbae830264850d044026167c", "status": "affected", "version": "58256a26bfb37a94738dd65618b1f31f460f8d91", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/dpll/dpll_netlink.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.17"}, {"lessThan": "6.17", "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\ndpll: fix NULL pointer dereference in dpll_msg_add_pin_ref_sync()\n\nWhen a dpll_pin is shared across multiple dpll_device instances and\nthose devices are being unregistered (e.g. during driver module removal),\na NULL pointer dereference can occur in dpll_msg_add_pin_ref_sync().\n\nThis happens under the following conditions:\n - A pin is registered with two or more dpll devices (dpll_A, dpll_B)\n - The pin has ref_sync pairs with other pins\n - During unregistration of dpll_A's pins, a ref_sync partner pin is\n unregistered first, removing it from dpll_A->pin_refs\n - But since the partner pin is still registered with dpll_B, its\n dpll_refs is not empty, so dpll_pin_ref_sync_pair_del() does NOT\n run and the partner stays in the pin's ref_sync_pins xarray\n - When the pin itself is then unregistered from dpll_A, the delete\n notification calls dpll_msg_add_pin_ref_sync() which finds the\n partner in ref_sync_pins, passes dpll_pin_available() (partner is\n still registered with dpll_B), but dpll_pin_on_dpll_priv(dpll_A,\n partner) returns NULL because partner was already removed from\n dpll_A->pin_refs\n - The NULL priv pointer is passed to the driver's ref_sync_get\n callback, which dereferences it\n\n BUG: kernel NULL pointer dereference, address: 0000000000000034\n Oops: Oops: 0000 [#1] SMP NOPTI\n RIP: 0010:zl3073x_dpll_input_pin_ref_sync_get+0x73/0x80 [zl3073x]\n Call Trace:\n dpll_msg_add_pin_ref_sync+0xb8/0x200\n dpll_cmd_pin_get_one+0x3b6/0x4b0\n dpll_pin_event_send+0x72/0x140\n __dpll_pin_unregister+0x5a/0x2b0\n dpll_pin_unregister+0x49/0x70\n\nFix this by skipping ref_sync pins whose priv pointer cannot be resolved\nfor the current dpll device."}], "id": "CVE-2026-68378", "lastModified": "2026-08-17T06:17:46.260", "metrics": {}, "published": "2026-08-10T13:20:30.813", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4b3e6b9fdaeb40c6a2f7c41db3888b6ee628bdd2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/51c2fcc4cd2e4c52bd1970558f6e5356fdc51154"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/66fbe0499ef517ab161b96c49886a891851f6481"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d2e914a4a0d0f753dbae830264850d044026167c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel dpll: Denial of Service due to NULL pointer dereference", "id": "2513257", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513257"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndpll: fix NULL pointer dereference in dpll_msg_add_pin_ref_sync()\nWhen a dpll_pin is shared across multiple dpll_device instances and\nthose devices are being unregistered (e.g. during driver module removal),\na NULL pointer dereference can occur in dpll_msg_add_pin_ref_sync().\nThis happens under the following conditions:\n- A pin is registered with two or more dpll devices (dpll_A, dpll_B)\n- The pin has ref_sync pairs with other pins\n- During unregistration of dpll_A's pins, a ref_sync partner pin is\nunregistered first, removing it from dpll_A->pin_refs\n- But since the partner pin is still registered with dpll_B, its\ndpll_refs is not empty, so dpll_pin_ref_sync_pair_del() does NOT\nrun and the partner stays in the pin's ref_sync_pins xarray\n- When the pin itself is then unregistered from dpll_A, the delete\nnotification calls dpll_msg_add_pin_ref_sync() which finds the\npartner in ref_sync_pins, passes dpll_pin_available() (partner is\nstill registered with dpll_B), but dpll_pin_on_dpll_priv(dpll_A,\npartner) returns NULL because partner was already removed from\ndpll_A->pin_refs\n- The NULL priv pointer is passed to the driver's ref_sync_get\ncallback, which dereferences it\nBUG: kernel NULL pointer dereference, address: 0000000000000034\nOops: Oops: 0000 [#1] SMP NOPTI\nRIP: 0010:zl3073x_dpll_input_pin_ref_sync_get+0x73/0x80 [zl3073x]\nCall Trace:\ndpll_msg_add_pin_ref_sync+0xb8/0x200\ndpll_cmd_pin_get_one+0x3b6/0x4b0\ndpll_pin_event_send+0x72/0x140\n__dpll_pin_unregister+0x5a/0x2b0\ndpll_pin_unregister+0x49/0x70\nFix this by skipping ref_sync pins whose priv pointer cannot be resolved\nfor the current dpll device.", "A flaw was found in the Linux kernel's dpll subsystem. A local user could trigger a null pointer dereference in the `dpll_msg_add_pin_ref_sync()` function when a `dpll_pin` is shared across multiple `dpll_device` instances and those devices are being unregistered. This vulnerability can lead to a system crash, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-68378", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "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": "2026-08-10T12:03:56Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68378\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68378\nhttps://git.kernel.org/stable/c/4b3e6b9fdaeb40c6a2f7c41db3888b6ee628bdd2\nhttps://git.kernel.org/stable/c/51c2fcc4cd2e4c52bd1970558f6e5356fdc51154\nhttps://git.kernel.org/stable/c/66fbe0499ef517ab161b96c49886a891851f6481\nhttps://git.kernel.org/stable/c/d2e914a4a0d0f753dbae830264850d044026167c"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[40466ea1827c46c6435fab9b21b63b80733e2d07,66fbe0499ef517ab161b96c49886a891851f6481)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[58256a26bfb37a94738dd65618b1f31f460f8d91,51c2fcc4cd2e4c52bd1970558f6e5356fdc51154)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[58256a26bfb37a94738dd65618b1f31f460f8d91,4b3e6b9fdaeb40c6a2f7c41db3888b6ee628bdd2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[58256a26bfb37a94738dd65618b1f31f460f8d91,d2e914a4a0d0f753dbae830264850d044026167c)"}}], "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": "generic", "value": "6.17"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.17)"}}, {"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-rc4,*]"}}], "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": "2026-08-10T17:15:03.143778+00:00", "updated": "2026-08-13T03:45:02.164581+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}