CVE-2026-98251: falha de alta gravidade em Linux
openvswitch: avoid reallocating confirmed conntrack labels
Publicada em · Atualizada em
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.8epss 0.1%
probabilidade de exploração
0.1%top 97% das CVEs
exploração observada
nãonenhuma fonte 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
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Linux · LinuxCVEs relacionadas — Linux
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Referências
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