CVE-2026-46168
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedMay 28, 2026
First seenMay 28, 2026
How to fix
Update
- linux linux_kernel5.15.209, 6.1.175, 6.6.140, 6.12.88, 6.18.30, 7.0.7 or later
Patches
- git.kernel.org/stable/c/0949d8bbbedbafe0136a1723c41eb823c2f1e09d
- git.kernel.org/stable/c/7eb513b42721bee4b96da69f6188d5a7783f210d
- git.kernel.org/stable/c/8a005fe451c73fd2b3d1faa5643c11e6bd07acfc
- git.kernel.org/stable/c/b157dab93a7af44a84e78cf0cb311dde475cff5b
- git.kernel.org/stable/c/b5c52908d52c6c8eb8933264aa6087a0600fd892
- git.kernel.org/stable/c/e792cfb6aeaf65612cdf8e3ac431d65e66283654
- git.kernel.org/stable/c/ebeb70e29e37cfce899309cc2665a3bfe960ed94
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.14 ≤ v < 5.15.209, 5.16 ≤ v < 6.1.175, 6.2 ≤ v < 6.6.140, 6.7 ≤ v < 6.12.88, 6.13 ≤ v < 6.18.30, 6.19 ≤ v < 7.0.7, 7.1 | 5.15.209, 6.1.175, 6.6.140, 6.12.88, 6.18.30, 7.0.7 |
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