CVE-2026-31409high

CVE-2026-31409: falha de alta gravidade em Linux

ksmbd: unset conn->binding on failed binding request

Publicada em · Atualizada em

21Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 8.8epss 0.7%
probabilidade de exploração
0.7%top 50% das CVEs
exploração observada
nãonenhuma fonte reporta
In the Linux kernel, the following vulnerability has been resolved: ksmbd: unset conn->binding on failed binding request When a multichannel SMB2_SESSION_SETUP request with SMB2_SESSION_REQ_FLAG_BINDING fails ksmbd sets conn->binding = true but never clears it on the error path. This leaves the connection in a binding state where all subsequent ksmbd_session_lookup_all() calls fall back to the global sessions table. This fix it by clearing conn->binding = false in the error path.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Produtos afetados
Linux · Linux
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Referências
https://git.kernel.org/stable/c/282343cf8a4a5a3603b1cb0e17a7083e4a593b03https://git.kernel.org/stable/c/6260fc85ed1298a71d24a75d01f8b2e56d489a60https://git.kernel.org/stable/c/6ebef4a220a1ebe345de899ebb9ae394206fe921https://git.kernel.org/stable/c/7e8b270813079c785696bce8802a3f920665c88chttps://git.kernel.org/stable/c/89afe5e2dbea6e9d8e5f11324149d06fa3a4efcahttps://git.kernel.org/stable/c/9feb2d1bf86d9e5e66b8565f37f8d3a7d281a772https://git.kernel.org/stable/c/d073870dab8f6dadced81d13d273ff0b21cb7f4e