by Kastro CVE-2026-45972
Linux Linux — smb: client: fix potential UAF and double free in smb2_open_file()
Description · from the CVE record
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
ProductAffectedFixed inSource
Linux743f70406264348c0830f38409eb6c40a42fb2db – < 96e53bb3ee2f354cf6b4ab07bcc56e500f8b3f7496e53bb3ee2f354cf6b4ab07bcc56e500f8b3f74CNA
Linux3a6d6b332f92990958602c1e35ce0173e2dd62e9 – < 7425453ea16dbc3bbb0f6cac4d60b537e5e4d1517425453ea16dbc3bbb0f6cac4d60b537e5e4d151CNA
Linuxb64e3b5d8d759dd4333992e4ba4dadf9359952c8 – < 4d339b219004869e96c4ce56b8891f83a38da4c04d339b219004869e96c4ce56b8891f83a38da4c0CNA
Linux9ee608a64e37cea5b4b13e436c559dd0fb2ad1b5 – < e66dcf7bb9c4df5582c82bc3582725abcbfbea73e66dcf7bb9c4df5582c82bc3582725abcbfbea73CNA
Linuxe3a43633023e3cacaca60d4b8972d084a2b06236 – < 639deb962986ef2f5e2a6d5a600c66f922471e81639deb962986ef2f5e2a6d5a600c66f922471e81CNA
Linuxe3a43633023e3cacaca60d4b8972d084a2b06236 – < ebbbc4bfad4cb355d17c671223d0814ee3ef4edaebbbc4bfad4cb355d17c671223d0814ee3ef4edaCNA
Linux6.1.163 – < 6.1.1656.1.165CNA
Linux6.6.124 – < 6.6.1286.6.128CNA
Linux6.12.70 – < 6.12.756.12.75CNA
Linux6.18.10 – < 6.18.146.18.14CNA
Linux6.196.1.165CNA
Red Hat Enterprise Linux 10see advisory–redhat-SADP
Scores by source
Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
redhat-SADP (CNA)7.0CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total