CVE-2024-39293 – In the Linux kernel, the following vulnerability h

CVE ID : CVE-2024-39293

Published : June 25, 2024, 3:15 p.m. | 1 hour, 5 minutes ago

Description : 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.

Severity: 0.0 | NA

Visit the link for more details, such as CVSS details, affected products, timeline, and more…CVE ID : CVE-2024-39293

Published : June 25, 2024, 3:15 p.m. | 1 hour, 5 minutes ago

Description : 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.

Severity: 0.0 | NA

Visit the link for more details, such as CVSS details, affected products, timeline, and more…