9.8

CVE-2026-64384

smb: client: fix change notify replay double-free

In the Linux kernel, the following vulnerability has been resolved:

smb: client: fix change notify replay double-free

A response-bearing attempt can return a replayable error and free its
response buffer. If SMB2_notify_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/5821f9dbb8b5b24391850a13418e633edd0fb003
Patch
https://git.kernel.org/stable/c/d684f4134998085702009b94c35c2003fc9e72d3
Patch
https://git.kernel.org/stable/c/52af1975f0dfae990c5a0e85872cc41be0e88a68
Patch
https://git.kernel.org/stable/c/901891513951bc8322ece754863909ea45af95c6
Patch
https://git.kernel.org/stable/c/145f820dcbb2cced374f2532f8a61a44dce4a615
Patch