{"id":"CVE-2026-46168","summary":"mptcp: fix scheduling with atomic in timestamp sockopt","details":"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.","modified":"2026-07-15T01:48:55.519986208Z","published":"2026-05-28T09:36:23.394Z","related":["openSUSE-SU-2026:10954-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46168.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0949d8bbbedbafe0136a1723c41eb823c2f1e09d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7eb513b42721bee4b96da69f6188d5a7783f210d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8a005fe451c73fd2b3d1faa5643c11e6bd07acfc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b157dab93a7af44a84e78cf0cb311dde475cff5b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b5c52908d52c6c8eb8933264aa6087a0600fd892"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e792cfb6aeaf65612cdf8e3ac431d65e66283654"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ebeb70e29e37cfce899309cc2665a3bfe960ed94"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46168.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46168"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"9061f24bf82ec2e92dd1e7c10b98b680db023d31"},{"fixed":"0949d8bbbedbafe0136a1723c41eb823c2f1e09d"},{"fixed":"e792cfb6aeaf65612cdf8e3ac431d65e66283654"},{"fixed":"ebeb70e29e37cfce899309cc2665a3bfe960ed94"},{"fixed":"b157dab93a7af44a84e78cf0cb311dde475cff5b"},{"fixed":"8a005fe451c73fd2b3d1faa5643c11e6bd07acfc"},{"fixed":"7eb513b42721bee4b96da69f6188d5a7783f210d"},{"fixed":"b5c52908d52c6c8eb8933264aa6087a0600fd892"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46168.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.14.0"},{"fixed":"5.15.209"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.175"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.140"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.88"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.30"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46168.json"}}],"schema_version":"1.7.5"}