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CVE-2026-64386

smb: client: fix query_info() replay double-free PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix query_info() replay double-free A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_query_info_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 100fb7c455fa86d248b8bd7bb9de757c192870b4; affected 4f1fffa2376922f3d1d506e49c0fd445b023a28e before 3c81dda84799f76b42aec598564316e2964440db; affected 4f1fffa2376922f3d1d506e49c0fd445b023a28e before f1add4acb656f5a82806a1ab0e63fed3d8b1bfca; affected 4f1fffa2376922f3d1d506e49c0fd445b023a28e before 89234773e8348918111aa15f6922b58cf3843364; affected 4f1fffa2376922f3d1d506e49c0fd445b023a28e before 2a88561d66eb855813cf004a0abe648bbb17de5e; 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.