PT-2026-43882 · Linux · Linux Kernel
CVE-2026-46015
·
Published
2026-05-27
·
Updated
2026-07-31
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 7.0.11-1.1
Description
An issue exists in the TCP implementation where the
inet csk listen stop() function migrates an established child socket from a closing listener to another socket within the same SO REUSEPORT group. During this process, the target listener receives a new accept-queue entry via inet csk reqsk queue add(), but the system fails to notify the target listener's waiters. Consequently, while nonblocking accept() calls continue to function by checking the queue directly, callers using blocking accept() or those waiting via poll() and epoll wait() may remain asleep indefinitely.Recommendations
Update to version 7.0.11-1.1 or later.
Exploit
Fix
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Related Identifiers
Affected Products
Linux Kernel