CVE-2026-46168

Description

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.

References

• 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/ebeb70e29e37cfce899309cc2665a3bfe960ed94