9.8

CVE-2026-64385

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

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.6.32 < 6.6.145
Linux ≫ Linux Kernel Version >= 6.8.1 < 6.12.96
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.39
Linux ≫ Linux Kernel Version >= 6.19 < 7.1.4
Linux ≫ Linux Kernel Version 6.8 Update -
Linux ≫ Linux Kernel Version 6.8 Update rc2
Linux ≫ Linux Kernel Version 6.8 Update rc3
Linux ≫ Linux Kernel Version 6.8 Update rc4
Linux ≫ Linux Kernel Version 6.8 Update rc5
Linux ≫ Linux Kernel Version 6.8 Update rc6
Linux ≫ Linux Kernel Version 6.8 Update rc7
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.46% 0.372
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-415 Double Free

The product calls free() twice on the same memory address.

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