{"api_version":"1","generated_at":"2026-06-02T09:42:53+00:00","cve":"CVE-2026-46168","urls":{"html":"https://cve.report/CVE-2026-46168","api":"https://cve.report/api/cve/CVE-2026-46168.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46168","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46168"},"summary":{"title":"mptcp: fix scheduling with atomic in timestamp sockopt","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix scheduling with atomic in timestamp sockopt\n\nUsing lock_sock_fast() (atomic context) around sock_set_timestamp()\nand sock_set_timestamping() is unsafe, as both helpers can sleep.\n\nReplace lock_sock_fast() with sleepable lock_sock()/release_sock()\nto avoid scheduling while atomic panic.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-28 10:16:32","updated_at":"2026-06-01 17:17:30"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/b157dab93a7af44a84e78cf0cb311dde475cff5b","name":"https://git.kernel.org/stable/c/b157dab93a7af44a84e78cf0cb311dde475cff5b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b5c52908d52c6c8eb8933264aa6087a0600fd892","name":"https://git.kernel.org/stable/c/b5c52908d52c6c8eb8933264aa6087a0600fd892","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0949d8bbbedbafe0136a1723c41eb823c2f1e09d","name":"https://git.kernel.org/stable/c/0949d8bbbedbafe0136a1723c41eb823c2f1e09d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8a005fe451c73fd2b3d1faa5643c11e6bd07acfc","name":"https://git.kernel.org/stable/c/8a005fe451c73fd2b3d1faa5643c11e6bd07acfc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e792cfb6aeaf65612cdf8e3ac431d65e66283654","name":"https://git.kernel.org/stable/c/e792cfb6aeaf65612cdf8e3ac431d65e66283654","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ebeb70e29e37cfce899309cc2665a3bfe960ed94","name":"https://git.kernel.org/stable/c/ebeb70e29e37cfce899309cc2665a3bfe960ed94","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7eb513b42721bee4b96da69f6188d5a7783f210d","name":"https://git.kernel.org/stable/c/7eb513b42721bee4b96da69f6188d5a7783f210d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46168","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46168","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9061f24bf82ec2e92dd1e7c10b98b680db023d31 0949d8bbbedbafe0136a1723c41eb823c2f1e09d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9061f24bf82ec2e92dd1e7c10b98b680db023d31 e792cfb6aeaf65612cdf8e3ac431d65e66283654 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9061f24bf82ec2e92dd1e7c10b98b680db023d31 ebeb70e29e37cfce899309cc2665a3bfe960ed94 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9061f24bf82ec2e92dd1e7c10b98b680db023d31 b157dab93a7af44a84e78cf0cb311dde475cff5b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9061f24bf82ec2e92dd1e7c10b98b680db023d31 8a005fe451c73fd2b3d1faa5643c11e6bd07acfc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9061f24bf82ec2e92dd1e7c10b98b680db023d31 7eb513b42721bee4b96da69f6188d5a7783f210d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9061f24bf82ec2e92dd1e7c10b98b680db023d31 b5c52908d52c6c8eb8933264aa6087a0600fd892 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.14","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.14 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.209 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.175 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.140 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.88 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.30 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.7 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1-rc2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"46168","cve":"CVE-2026-46168","epss":"0.000180000","percentile":"0.050770000","score_date":"2026-06-01","updated_at":"2026-06-02 00:05:19"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mptcp/sockopt.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0949d8bbbedbafe0136a1723c41eb823c2f1e09d","status":"affected","version":"9061f24bf82ec2e92dd1e7c10b98b680db023d31","versionType":"git"},{"lessThan":"e792cfb6aeaf65612cdf8e3ac431d65e66283654","status":"affected","version":"9061f24bf82ec2e92dd1e7c10b98b680db023d31","versionType":"git"},{"lessThan":"ebeb70e29e37cfce899309cc2665a3bfe960ed94","status":"affected","version":"9061f24bf82ec2e92dd1e7c10b98b680db023d31","versionType":"git"},{"lessThan":"b157dab93a7af44a84e78cf0cb311dde475cff5b","status":"affected","version":"9061f24bf82ec2e92dd1e7c10b98b680db023d31","versionType":"git"},{"lessThan":"8a005fe451c73fd2b3d1faa5643c11e6bd07acfc","status":"affected","version":"9061f24bf82ec2e92dd1e7c10b98b680db023d31","versionType":"git"},{"lessThan":"7eb513b42721bee4b96da69f6188d5a7783f210d","status":"affected","version":"9061f24bf82ec2e92dd1e7c10b98b680db023d31","versionType":"git"},{"lessThan":"b5c52908d52c6c8eb8933264aa6087a0600fd892","status":"affected","version":"9061f24bf82ec2e92dd1e7c10b98b680db023d31","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/mptcp/sockopt.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.14"},{"lessThan":"5.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.140","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.88","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.30","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1-rc2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.209","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.175","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.140","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.88","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.30","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.7","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1-rc2","versionStartIncluding":"5.14","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix scheduling with atomic in timestamp sockopt\n\nUsing lock_sock_fast() (atomic context) around sock_set_timestamp()\nand sock_set_timestamping() is unsafe, as both helpers can sleep.\n\nReplace lock_sock_fast() with sleepable lock_sock()/release_sock()\nto avoid scheduling while atomic panic."}],"providerMetadata":{"dateUpdated":"2026-06-01T16:19:27.450Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/0949d8bbbedbafe0136a1723c41eb823c2f1e09d"},{"url":"https://git.kernel.org/stable/c/e792cfb6aeaf65612cdf8e3ac431d65e66283654"},{"url":"https://git.kernel.org/stable/c/ebeb70e29e37cfce899309cc2665a3bfe960ed94"},{"url":"https://git.kernel.org/stable/c/b157dab93a7af44a84e78cf0cb311dde475cff5b"},{"url":"https://git.kernel.org/stable/c/8a005fe451c73fd2b3d1faa5643c11e6bd07acfc"},{"url":"https://git.kernel.org/stable/c/7eb513b42721bee4b96da69f6188d5a7783f210d"},{"url":"https://git.kernel.org/stable/c/b5c52908d52c6c8eb8933264aa6087a0600fd892"}],"title":"mptcp: fix scheduling with atomic in timestamp sockopt","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46168","datePublished":"2026-05-28T09:36:23.394Z","dateReserved":"2026-05-13T15:03:33.102Z","dateUpdated":"2026-06-01T16:19:27.450Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-28 10:16:32","lastModifiedDate":"2026-06-01 17:17:30","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46168","Ordinal":"1","Title":"mptcp: fix scheduling with atomic in timestamp sockopt","CVE":"CVE-2026-46168","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46168","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix scheduling with atomic in timestamp sockopt\n\nUsing lock_sock_fast() (atomic context) around sock_set_timestamp()\nand sock_set_timestamping() is unsafe, as both helpers can sleep.\n\nReplace lock_sock_fast() with sleepable lock_sock()/release_sock()\nto avoid scheduling while atomic panic.","Type":"Description","Title":"mptcp: fix scheduling with atomic in timestamp sockopt"}]}}}