{"id":"CVE-2026-80564","state":"PUBLISHED","title":"gve: fix NULL dereference due to missing ptp adjfine","description":"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","publishedAt":"2026-08-26T14:37:28.351Z","updatedAt":"2026-08-26T14:37:28.351Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"acd16380523b400400523fe54c7499320e558e80","status":"affected","lessThan":"e9482feeed66d4bc805458631013e9b61b1a9eaf","versionType":"git"},{"version":"acd16380523b400400523fe54c7499320e558e80","status":"affected","lessThan":"fa9b991bf678dd412dc0ed080672d34d7558d7af","versionType":"git"},{"version":"acd16380523b400400523fe54c7499320e558e80","status":"affected","lessThan":"3992ced109c70b771efad9e51ae68e5c7a04dea3","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/google/gve/gve_ptp.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.17","versionType":"semver"},{"version":"6.18.46","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.10","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/google/gve/gve_ptp.c"]}],"references":["https://git.kernel.org/stable/c/e9482feeed66d4bc805458631013e9b61b1a9eaf","https://git.kernel.org/stable/c/fa9b991bf678dd412dc0ed080672d34d7558d7af","https://git.kernel.org/stable/c/3992ced109c70b771efad9e51ae68e5c7a04dea3"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/80xxx/CVE-2026-80564.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80564","state":"PUBLISHED","datePublished":"2026-08-26T14:37:28.351Z","dateUpdated":"2026-08-26T14:37:28.351Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-26T14:34:25.767Z"},"containers":{"cna":{"title":"gve: fix NULL dereference due to missing ptp adjfine","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":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"acd16380523b400400523fe54c7499320e558e80","status":"affected","lessThan":"e9482feeed66d4bc805458631013e9b61b1a9eaf","versionType":"git"},{"version":"acd16380523b400400523fe54c7499320e558e80","status":"affected","lessThan":"fa9b991bf678dd412dc0ed080672d34d7558d7af","versionType":"git"},{"version":"acd16380523b400400523fe54c7499320e558e80","status":"affected","lessThan":"3992ced109c70b771efad9e51ae68e5c7a04dea3","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/google/gve/gve_ptp.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.17","versionType":"semver"},{"version":"6.18.46","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.10","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/google/gve/gve_ptp.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-26T14:37:28.351Z"},"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"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}