CVE-2026-64385critical

smb: client: fix double-free in SMB2_ioctl() replay

28Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 9.8epss 0.5%

probabilidad de explotación

0.5%top 63% de las CVE

explotación observada

noninguna fuente lo reporta

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2_ioctl() replay A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_ioctl_init() fails before the next send, cleanup retains the previous buffer type and frees that response again. Reset response bookkeeping before each attempt to prevent the stale free.

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

Productos afectados

Linux · Linux

Referencias

https://git.kernel.org/stable/c/0be4bc64882edaefaaee8d1e27d083643eb778e6 https://git.kernel.org/stable/c/276c8efbc49f9303ac76d0d4deab7128581b0f3b https://git.kernel.org/stable/c/96fcfc8ae7359346156e492ca610e830d2649ad6 https://git.kernel.org/stable/c/f9bbadb6c94583e3b4af1afc449bfceb1d1ddec9 https://git.kernel.org/stable/c/fc65ffb4ef1bf540da16b17c225ae51091e07d72