Critical severity9.8NVD Advisory· Published Jul 25, 2026· Updated Sep 4, 2026
CVE-2026-64384
CVE-2026-64384
Description
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.
Affected products
3- osv-coords2 versions
< 6.6.145+ 1 more
- (no CPE)range: < 6.6.145
- (no CPE)range: < 7.1.7-1.1
Patches
Vulnerability mechanics
References
5- git.kernel.org/stable/c/145f820dcbb2cced374f2532f8a61a44dce4a615nvdPatch
- git.kernel.org/stable/c/52af1975f0dfae990c5a0e85872cc41be0e88a68nvdPatch
- git.kernel.org/stable/c/5821f9dbb8b5b24391850a13418e633edd0fb003nvdPatch
- git.kernel.org/stable/c/901891513951bc8322ece754863909ea45af95c6nvdPatch
- git.kernel.org/stable/c/d684f4134998085702009b94c35c2003fc9e72d3nvdPatch
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