{"id":"CVE-2026-64553","state":"PUBLISHED","title":"net: psample: fix info leak in PSAMPLE_ATTR_DATA","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: psample: fix info leak in PSAMPLE_ATTR_DATA\n\npsample open codes nla_put() presumably to avoid wiping\nthe data with 0s just to override it with packet data.\nThis open coding is missing clearing the pad, however,\neach netlink attr is padded to 4B and data_len may\nnot be divisible by 4B.","publishedAt":"2026-07-27T20:10:41.159Z","updatedAt":"2026-08-17T04:57:30.953Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6ae0a6286171154661b74f7f550f9441c6008424","status":"affected","lessThan":"0d3ea2ccddda442077fc44f11d873209c97ec50b","versionType":"git"},{"version":"6ae0a6286171154661b74f7f550f9441c6008424","status":"affected","lessThan":"7fe7e6949964aa8ee6305f09db2dc9eede977bb3","versionType":"git"},{"version":"6ae0a6286171154661b74f7f550f9441c6008424","status":"affected","lessThan":"e2fa322782a2d7d8078f7bb20817e0aa9f7c32e9","versionType":"git"},{"version":"6ae0a6286171154661b74f7f550f9441c6008424","status":"affected","lessThan":"befe1ebe7fc2c65c80074bc34ceeb0a721ed3cd2","versionType":"git"},{"version":"6ae0a6286171154661b74f7f550f9441c6008424","status":"affected","lessThan":"48930f6c59fd0056c2de46ce52bfe27d9c9e5eb6","versionType":"git"},{"version":"6ae0a6286171154661b74f7f550f9441c6008424","status":"affected","lessThan":"a6cfb924ad74efce254e99c197d2e3863de70868","versionType":"git"},{"version":"6ae0a6286171154661b74f7f550f9441c6008424","status":"affected","lessThan":"794a0d8bdbb39e083ed42caccb86d687a9b53570","versionType":"git"},{"version":"6ae0a6286171154661b74f7f550f9441c6008424","status":"affected","lessThan":"aedd02af1f8b0bceb7f42f5a21c41634ca9ed390","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/psample/psample.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.11","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","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":["net/psample/psample.c"]}],"references":["https://git.kernel.org/stable/c/0d3ea2ccddda442077fc44f11d873209c97ec50b","https://git.kernel.org/stable/c/7fe7e6949964aa8ee6305f09db2dc9eede977bb3","https://git.kernel.org/stable/c/e2fa322782a2d7d8078f7bb20817e0aa9f7c32e9","https://git.kernel.org/stable/c/befe1ebe7fc2c65c80074bc34ceeb0a721ed3cd2","https://git.kernel.org/stable/c/48930f6c59fd0056c2de46ce52bfe27d9c9e5eb6","https://git.kernel.org/stable/c/a6cfb924ad74efce254e99c197d2e3863de70868","https://git.kernel.org/stable/c/794a0d8bdbb39e083ed42caccb86d687a9b53570","https://git.kernel.org/stable/c/aedd02af1f8b0bceb7f42f5a21c41634ca9ed390"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/64xxx/CVE-2026-64553.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64553","state":"PUBLISHED","datePublished":"2026-07-27T20:10:41.159Z","dateUpdated":"2026-08-17T04:57:30.953Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-19T15:36:31.796Z"},"containers":{"cna":{"title":"net: psample: fix info leak in PSAMPLE_ATTR_DATA","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: psample: fix info leak in PSAMPLE_ATTR_DATA\n\npsample open codes nla_put() presumably to avoid wiping\nthe data with 0s just to override it with packet data.\nThis open coding is missing clearing the pad, however,\neach netlink attr is padded to 4B and data_len may\nnot be divisible by 4B."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6ae0a6286171154661b74f7f550f9441c6008424","status":"affected","lessThan":"0d3ea2ccddda442077fc44f11d873209c97ec50b","versionType":"git"},{"version":"6ae0a6286171154661b74f7f550f9441c6008424","status":"affected","lessThan":"7fe7e6949964aa8ee6305f09db2dc9eede977bb3","versionType":"git"},{"version":"6ae0a6286171154661b74f7f550f9441c6008424","status":"affected","lessThan":"e2fa322782a2d7d8078f7bb20817e0aa9f7c32e9","versionType":"git"},{"version":"6ae0a6286171154661b74f7f550f9441c6008424","status":"affected","lessThan":"befe1ebe7fc2c65c80074bc34ceeb0a721ed3cd2","versionType":"git"},{"version":"6ae0a6286171154661b74f7f550f9441c6008424","status":"affected","lessThan":"48930f6c59fd0056c2de46ce52bfe27d9c9e5eb6","versionType":"git"},{"version":"6ae0a6286171154661b74f7f550f9441c6008424","status":"affected","lessThan":"a6cfb924ad74efce254e99c197d2e3863de70868","versionType":"git"},{"version":"6ae0a6286171154661b74f7f550f9441c6008424","status":"affected","lessThan":"794a0d8bdbb39e083ed42caccb86d687a9b53570","versionType":"git"},{"version":"6ae0a6286171154661b74f7f550f9441c6008424","status":"affected","lessThan":"aedd02af1f8b0bceb7f42f5a21c41634ca9ed390","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/psample/psample.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.11","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","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":["net/psample/psample.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/0d3ea2ccddda442077fc44f11d873209c97ec50b"},{"url":"https://git.kernel.org/stable/c/7fe7e6949964aa8ee6305f09db2dc9eede977bb3"},{"url":"https://git.kernel.org/stable/c/e2fa322782a2d7d8078f7bb20817e0aa9f7c32e9"},{"url":"https://git.kernel.org/stable/c/befe1ebe7fc2c65c80074bc34ceeb0a721ed3cd2"},{"url":"https://git.kernel.org/stable/c/48930f6c59fd0056c2de46ce52bfe27d9c9e5eb6"},{"url":"https://git.kernel.org/stable/c/a6cfb924ad74efce254e99c197d2e3863de70868"},{"url":"https://git.kernel.org/stable/c/794a0d8bdbb39e083ed42caccb86d687a9b53570"},{"url":"https://git.kernel.org/stable/c/aedd02af1f8b0bceb7f42f5a21c41634ca9ed390"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T04:57:30.953Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"5.10.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}