CVE-2026-64386
smb: client: fix query_info() replay double-free
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 25, 2026 |
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Affected Versions
Linux / Linux
433042a91f9373241307725b52de573933ffedbf < 100fb7c455fa86d248b8bd7bb9de757c192870b4 4f1fffa2376922f3d1d506e49c0fd445b023a28e < 3c81dda84799f76b42aec598564316e2964440db 4f1fffa2376922f3d1d506e49c0fd445b023a28e < f1add4acb656f5a82806a1ab0e63fed3d8b1bfca 4f1fffa2376922f3d1d506e49c0fd445b023a28e < 89234773e8348918111aa15f6922b58cf3843364 4f1fffa2376922f3d1d506e49c0fd445b023a28e < 2a88561d66eb855813cf004a0abe648bbb17de5e 6.6.32 < 6.6.145
Linux / Linux
6.8
References
git.kernel.org: https://git.kernel.org/stable/c/100fb7c455fa86d248b8bd7bb9de757c192870b4 git.kernel.org: https://git.kernel.org/stable/c/3c81dda84799f76b42aec598564316e2964440db git.kernel.org: https://git.kernel.org/stable/c/f1add4acb656f5a82806a1ab0e63fed3d8b1bfca git.kernel.org: https://git.kernel.org/stable/c/89234773e8348918111aa15f6922b58cf3843364 git.kernel.org: https://git.kernel.org/stable/c/2a88561d66eb855813cf004a0abe648bbb17de5e