← CVE Intelligence

CVE-2026-64387

smb: client: fix query directory replay double-free PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix query directory replay double-free A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_query_directory_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 3409aedf3c81a810243da94164f6621c9d205c98; affected 4f1fffa2376922f3d1d506e49c0fd445b023a28e before 1665f25b1dea30bf2d02e16245d203a944c9d994; affected 4f1fffa2376922f3d1d506e49c0fd445b023a28e before 00b0fa425941438b664950a8ee65dfba2def4336; affected 4f1fffa2376922f3d1d506e49c0fd445b023a28e before 3317a5d015fca976475aa71df224056777316fde; affected 4f1fffa2376922f3d1d506e49c0fd445b023a28e before 9647492b5e41954be59d5157eddbcd4cdc1656f7; 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.