{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-40057","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T07:20:57.158Z","datePublished":"2025-10-28T11:48:30.947Z","dateUpdated":"2026-05-11T21:41:38.864Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:41:38.864Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nptp: Add a upper bound on max_vclocks\n\nsyzbot reported WARNING in max_vclocks_store.\n\nThis occurs when the argument max is too large for kcalloc to handle.\n\nExtend the guard to guard against values that are too large for\nkcalloc"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/ptp/ptp_private.h","drivers/ptp/ptp_sysfs.c"],"versions":[{"version":"73f37068d540eba5f93ba3a0019bf479d35ebd76","lessThan":"8dd446056336faa2283d62cefc2f576536845edc","status":"affected","versionType":"git"},{"version":"73f37068d540eba5f93ba3a0019bf479d35ebd76","lessThan":"35ce5f163889dbce88eda1df661b357a09bbed87","status":"affected","versionType":"git"},{"version":"73f37068d540eba5f93ba3a0019bf479d35ebd76","lessThan":"e9f35294e18da82162004a2f35976e7031aaf7f9","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/ptp/ptp_private.h","drivers/ptp/ptp_sysfs.c"],"versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","status":"unaffected","versionType":"semver"},{"version":"6.12.53","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.17.3","lessThanOrEqual":"6.17.*","status":"unaffected","versionType":"semver"},{"version":"6.18","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":"5.14","versionEndExcluding":"6.12.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.17.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.18"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/8dd446056336faa2283d62cefc2f576536845edc"},{"url":"https://git.kernel.org/stable/c/35ce5f163889dbce88eda1df661b357a09bbed87"},{"url":"https://git.kernel.org/stable/c/e9f35294e18da82162004a2f35976e7031aaf7f9"}],"title":"ptp: Add a upper bound on max_vclocks","x_generator":{"engine":"bippy-1.2.0"}}}}