{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80564", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.767Z", "datePublished": "2026-08-26T14:37:28.351Z", "dateUpdated": "2026-08-26T14:37:28.351Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-26T14:37:28.351Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngve: fix NULL dereference due to missing ptp adjfine\n\nFix NULL dereference due to missing implementation of adjfine, which can\nbe triggered from usermode as follows:\n\nsudo ./testptp -d /dev/ptp0 -f 0\n[ 551.943697] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[...]\n[ 552.061946] Call Trace:\n[ 552.064487] <TASK>\n[ 552.066681] ptp_clock_adjtime+0x1c0/0x2c0\n[ 552.070874] ? get_clock_desc+0x6b/0xb0\n[ 552.074825] pc_clock_adjtime+0x78/0xc0\n[ 552.078755] __do_sys_clock_adjtime+0x85/0x110\n[ 552.083293] do_syscall_64+0xea/0x610"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/google/gve/gve_ptp.c"], "versions": [{"version": "acd16380523b400400523fe54c7499320e558e80", "lessThan": "e9482feeed66d4bc805458631013e9b61b1a9eaf", "status": "affected", "versionType": "git"}, {"version": "acd16380523b400400523fe54c7499320e558e80", "lessThan": "fa9b991bf678dd412dc0ed080672d34d7558d7af", "status": "affected", "versionType": "git"}, {"version": "acd16380523b400400523fe54c7499320e558e80", "lessThan": "3992ced109c70b771efad9e51ae68e5c7a04dea3", "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/google/gve/gve_ptp.c"], "versions": [{"version": "6.17", "status": "affected"}, {"version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.46", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.10", "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": "6.18.46"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.1.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e9482feeed66d4bc805458631013e9b61b1a9eaf"}, {"url": "https://git.kernel.org/stable/c/fa9b991bf678dd412dc0ed080672d34d7558d7af"}, {"url": "https://git.kernel.org/stable/c/3992ced109c70b771efad9e51ae68e5c7a04dea3"}], "title": "gve: fix NULL dereference due to missing ptp adjfine", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/google/gve/gve_ptp.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "e9482feeed66d4bc805458631013e9b61b1a9eaf", "status": "affected", "version": "acd16380523b400400523fe54c7499320e558e80", "versionType": "git"}, {"lessThan": "fa9b991bf678dd412dc0ed080672d34d7558d7af", "status": "affected", "version": "acd16380523b400400523fe54c7499320e558e80", "versionType": "git"}, {"lessThan": "3992ced109c70b771efad9e51ae68e5c7a04dea3", "status": "affected", "version": "acd16380523b400400523fe54c7499320e558e80", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/google/gve/gve_ptp.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": "6.18.46", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.10", "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\ngve: fix NULL dereference due to missing ptp adjfine\n\nFix NULL dereference due to missing implementation of adjfine, which can\nbe triggered from usermode as follows:\n\nsudo ./testptp -d /dev/ptp0 -f 0\n[ 551.943697] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[...]\n[ 552.061946] Call Trace:\n[ 552.064487] <TASK>\n[ 552.066681] ptp_clock_adjtime+0x1c0/0x2c0\n[ 552.070874] ? get_clock_desc+0x6b/0xb0\n[ 552.074825] pc_clock_adjtime+0x78/0xc0\n[ 552.078755] __do_sys_clock_adjtime+0x85/0x110\n[ 552.083293] do_syscall_64+0xea/0x610"}], "id": "CVE-2026-80564", "lastModified": "2026-08-26T15:17:11.433", "metrics": {}, "published": "2026-08-26T15:17:11.433", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3992ced109c70b771efad9e51ae68e5c7a04dea3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e9482feeed66d4bc805458631013e9b61b1a9eaf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fa9b991bf678dd412dc0ed080672d34d7558d7af"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: gve: fix NULL dereference due to missing ptp adjfine", "id": "2524488", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2524488"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/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:\ngve: fix NULL dereference due to missing ptp adjfine\nFix NULL dereference due to missing implementation of adjfine, which can\nbe triggered from usermode as follows:\nsudo ./testptp -d /dev/ptp0 -f 0\n[ 551.943697] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[...]\n[ 552.061946] Call Trace:\n[ 552.064487] <TASK>\n[ 552.066681] ptp_clock_adjtime+0x1c0/0x2c0\n[ 552.070874] ? get_clock_desc+0x6b/0xb0\n[ 552.074825] pc_clock_adjtime+0x78/0xc0\n[ 552.078755] __do_sys_clock_adjtime+0x85/0x110\n[ 552.083293] do_syscall_64+0xea/0x610", "A flaw was found in the Linux kernel's gve component. A local user can trigger a NULL pointer dereference by attempting to use the `ptp adjfine` function, which has a missing implementation. This vulnerability can lead to a system crash, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-80564", "public_date": "2026-08-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-80564\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-80564\nhttps://lore.kernel.org/linux-cve-announce/2026082611-CVE-2026-80564-9a1f@gregkh/T"], "threat_severity": "Low"}