Medium severity5.5NVD Advisory· Published May 28, 2026· Updated Jun 10, 2026
CVE-2026-46168
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.
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Affected products
4Patches
Vulnerability mechanics
References
7- git.kernel.org/stable/c/0949d8bbbedbafe0136a1723c41eb823c2f1e09dnvdPatch
- git.kernel.org/stable/c/7eb513b42721bee4b96da69f6188d5a7783f210dnvdPatch
- git.kernel.org/stable/c/8a005fe451c73fd2b3d1faa5643c11e6bd07acfcnvdPatch
- git.kernel.org/stable/c/b157dab93a7af44a84e78cf0cb311dde475cff5bnvdPatch
- git.kernel.org/stable/c/b5c52908d52c6c8eb8933264aa6087a0600fd892nvdPatch
- git.kernel.org/stable/c/e792cfb6aeaf65612cdf8e3ac431d65e66283654nvdPatch
- git.kernel.org/stable/c/ebeb70e29e37cfce899309cc2665a3bfe960ed94nvdPatch
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