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CVE-2026-64384

smb: client: fix change notify replay double-free PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 433042a91f9373241307725b52de573933ffedbf before 5821f9dbb8b5b24391850a13418e633edd0fb003; affected 4f1fffa2376922f3d1d506e49c0fd445b023a28e before d684f4134998085702009b94c35c2003fc9e72d3; affected 4f1fffa2376922f3d1d506e49c0fd445b023a28e before 52af1975f0dfae990c5a0e85872cc41be0e88a68; affected 4f1fffa2376922f3d1d506e49c0fd445b023a28e before 901891513951bc8322ece754863909ea45af95c6; affected 4f1fffa2376922f3d1d506e49c0fd445b023a28e before 145f820dcbb2cced374f2532f8a61a44dce4a615; affected 6.6.32 before 6.6.145
Linux / Linuxaffected 6.8; unaffected 0 before 6.8; unaffected 6.6.145 through 6.6.*; unaffected 6.12.96 through 6.12.*; unaffected 6.18.39 through 6.18.*; unaffected 7.1.4 through 7.1.*; unaffected 7.2 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.