CVE-2026-23106 — Missing Synchronization in Linux
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 94.96%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedFeb 4
Description
In the Linux kernel, the following vulnerability has been resolved:
timekeeping: Adjust the leap state for the correct auxiliary timekeeper
When __do_ajdtimex() was introduced to handle adjtimex for any
timekeeper, this reference to tk_core was not updated. When called on an
auxiliary timekeeper, the core timekeeper would be updated incorrectly.
This gets caught by the lock debugging diagnostics because the
timekeepers sequence lock gets written to without holding its
associated spinlock:
WA…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages3 packages
▶CVEListV5linux/linux775f71ebedd382da390dc16a4c28cffa5b937f79 — 8f7c9dbeaa0be5810e44d323735967d3dba9239d+2
Patches
🔴Vulnerability Details
3OSV▶
CVE-2026-23106: In the Linux kernel, the following vulnerability has been resolved: timekeeping: Adjust the leap state for the correct auxiliary timekeeper When __do_↗2026-02-04
GHSA▶
GHSA-gx3f-mw8m-6ff3: In the Linux kernel, the following vulnerability has been resolved:
timekeeping: Adjust the leap state for the correct auxiliary timekeeper
When __d↗2026-02-04