GHSA-vhxr-pcmq-x8rc

GHSA-vhxr-pcmq-x8rc PUBLISHED CVSS 4.699999809265137 MEDIUM

Record from GitHub Advisory Database · Published June 25, 2024

In the Linux kernel, the following vulnerability has been resolved: Revert "xsk: Support redirect to any socket bound to the same umem" This reverts commit 2863d665ea41282379f108e4da6c8a2366ba66db. This patch introduced a potential kernel crash when multiple napi instances redirect to the same AF_XDP socket. By removing the queue_index check, it is possible for multiple napi instances to access the Rx ring at the same time, which will result in a corrupted ring state which can lead to a crash when flushing the rings in __xsk_flush(). This can happen when the linked list of sockets to flush gets corrupted by concurrent accesses. A quick and small fix is not possible, so let us revert this for now.

Risk scores

CVSS 3.1

4.699999809265137

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Timeline

Jun 25, 2024 CVE Published
May 1, 2026 Security Advisory

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