mptcp: fix scheduling with atomic in timestamp sockopt
In the Linux kernel, the following vulnerability has been resolved: mptcp: fix scheduling with atomic in timestamp sockopt Using lock_sock_fast() (atomic context) around sock_set_timestamp() and sock_set_timestamping() is unsafe, as both helpers can sleep. Replace lock_sock_fast() with sleepable lock_sock()/release_sock() to avoid scheduling while atomic panic.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: mptcp: fix scheduling with atomic in timestamp sockopt Using lock_sock_fast() (atomic context) around sock_set_timestamp() and sock_set_timestamping() is unsafe, as both helpers can sleep. Replace lock_sock_fast() with sleepable lock_sock()/release_sock() to avoid scheduling while atomic panic.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0949d8bbbedbafe0136a1723c41eb823c2f1e09d
- https://git.kernel.org/stable/c/7eb513b42721bee4b96da69f6188d5a7783f210d
- https://git.kernel.org/stable/c/8a005fe451c73fd2b3d1faa5643c11e6bd07acfc
- https://git.kernel.org/stable/c/b157dab93a7af44a84e78cf0cb311dde475cff5b
- https://git.kernel.org/stable/c/b5c52908d52c6c8eb8933264aa6087a0600fd892
- https://git.kernel.org/stable/c/e792cfb6aeaf65612cdf8e3ac431d65e66283654
- https://git.kernel.org/stable/c/ebeb70e29e37cfce899309cc2665a3bfe960ed94
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46168.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-46168