CVE-2026-98251: fallo de gravedad alta en Linux
openvswitch: avoid reallocating confirmed conntrack labels
Publicada el · Actualizada el
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.8epss 0.1%
probabilidad de explotación
0.1%top 97% de las CVE
explotación observada
noninguna fuente lo reporta
In the Linux kernel, the following vulnerability has been resolved:
openvswitch: avoid reallocating confirmed conntrack labels
ovs_ct_get_conn_labels() adds the labels extension when a conntrack
entry does not have one. Confirmed conntracks can be read locklessly,
so adding an extension may reallocate and free the extension block
while another CPU accesses it.
Only add the extension for unconfirmed conntracks. A confirmed
conntrack without labels now fails the caller's label operation instead
of reallocating its extension storage.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Productos afectados
Linux · LinuxCVEs relacionadas — Linux
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Referencias
https://git.kernel.org/stable/c/05eab8dced6bf4d3009a6eeee16ddac99047dc83https://git.kernel.org/stable/c/2e6dd889c325abf23821e1459c3ffef59b7f0009https://git.kernel.org/stable/c/3f118c8217c109fd13ca61caa301d72c483897efhttps://git.kernel.org/stable/c/4371d79ea74407fb992c985b1f94391e35bb8289https://git.kernel.org/stable/c/579d87ec1e1e85729a6cb2c25961e58beb78640chttps://git.kernel.org/stable/c/7ff688aceada1160331a789385ea146f62fbddf7https://git.kernel.org/stable/c/8c9fcc6c33950d3db551af664d1fd3d998bfee56https://git.kernel.org/stable/c/d16f089bd700f45d720ce989d5495e1dc3be0cf8