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CVE-2026-45972
published 2026-05-27

CVE-2026-45972: 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…

critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
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.

Affected

12 ranges
VendorProductVersion rangeFixed in
linuxlinux——
linuxlinux>= 3a6d6b332f92990958602c1e35ce0173e2dd62e9 < 7425453ea16dbc3bbb0f6cac4d60b537e5e4d1517425453ea16dbc3bbb0f6cac4d60b537e5e4d151
linuxlinux>= 6.1.163 < 6.1.1656.1.165
linuxlinux>= 6.12.70 < 6.12.756.12.75
linuxlinux>= 6.18.10 < 6.18.146.18.14
linuxlinux>= 6.6.124 < 6.6.1286.6.128
linuxlinux>= 743f70406264348c0830f38409eb6c40a42fb2db < 96e53bb3ee2f354cf6b4ab07bcc56e500f8b3f7496e53bb3ee2f354cf6b4ab07bcc56e500f8b3f74
linuxlinux>= 9ee608a64e37cea5b4b13e436c559dd0fb2ad1b5 < e66dcf7bb9c4df5582c82bc3582725abcbfbea73e66dcf7bb9c4df5582c82bc3582725abcbfbea73
linuxlinux>= b64e3b5d8d759dd4333992e4ba4dadf9359952c8 < 4d339b219004869e96c4ce56b8891f83a38da4c04d339b219004869e96c4ce56b8891f83a38da4c0
linuxlinux>= e3a43633023e3cacaca60d4b8972d084a2b06236 < 639deb962986ef2f5e2a6d5a600c66f922471e81639deb962986ef2f5e2a6d5a600c66f922471e81
linuxlinux>= e3a43633023e3cacaca60d4b8972d084a2b06236 < ebbbc4bfad4cb355d17c671223d0814ee3ef4edaebbbc4bfad4cb355d17c671223d0814ee3ef4eda
linuxlinux_kernel——