CVE-2026-46168
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…
Does this matter?
Lower severity and a low EPSS score (0.13%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.13% probability · 3th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0949d8bbbedbafe0136a1723c41eb823c2f1e09dPatch
- https://git.kernel.org/stable/c/7eb513b42721bee4b96da69f6188d5a7783f210dPatch
- https://git.kernel.org/stable/c/8a005fe451c73fd2b3d1faa5643c11e6bd07acfcPatch
- https://git.kernel.org/stable/c/b157dab93a7af44a84e78cf0cb311dde475cff5bPatch
- https://git.kernel.org/stable/c/b5c52908d52c6c8eb8933264aa6087a0600fd892Patch
- https://git.kernel.org/stable/c/e792cfb6aeaf65612cdf8e3ac431d65e66283654Patch
- https://git.kernel.org/stable/c/ebeb70e29e37cfce899309cc2665a3bfe960ed94Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.