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CVE-2026-45972

smb: client: fix potential UAF and double free in smb2_open_file()

CVSS 9.8 CRITICALEPSS 0.5%
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF and double free in smb2_open_file() Zero out @err_iov and @err_buftype before retrying SMB2_open() to prevent an UAF bug if @data != NULL, otherwise a double free.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Productos afectados
Linux · Linux

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Referencias
https://git.kernel.org/stable/c/4d339b219004869e96c4ce56b8891f83a38da4c0https://git.kernel.org/stable/c/639deb962986ef2f5e2a6d5a600c66f922471e81https://git.kernel.org/stable/c/7425453ea16dbc3bbb0f6cac4d60b537e5e4d151https://git.kernel.org/stable/c/96e53bb3ee2f354cf6b4ab07bcc56e500f8b3f74https://git.kernel.org/stable/c/e66dcf7bb9c4df5582c82bc3582725abcbfbea73https://git.kernel.org/stable/c/ebbbc4bfad4cb355d17c671223d0814ee3ef4eda