CVE-2026-64386
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 433042a91f9373241307725b52de573933ffedbf < 100fb7c455fa86d248b8bd7bb9de757c192870b4 | affected |
| Linux | Linux | 4f1fffa2376922f3d1d506e49c0fd445b023a28e < 3c81dda84799f76b42aec598564316e2964440db | affected |
| Linux | Linux | 4f1fffa2376922f3d1d506e49c0fd445b023a28e < f1add4acb656f5a82806a1ab0e63fed3d8b1bfca | affected |
| Linux | Linux | 4f1fffa2376922f3d1d506e49c0fd445b023a28e < 89234773e8348918111aa15f6922b58cf3843364 | affected |
| Linux | Linux | 4f1fffa2376922f3d1d506e49c0fd445b023a28e < 2a88561d66eb855813cf004a0abe648bbb17de5e | affected |
| Linux | Linux | 6.6.32 < 6.6.145 | affected |
| Linux | Linux | 6.8 | affected |
| Linux | Linux | 0 < 6.8 | unaffected |
| Linux | Linux | 6.6.145 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.96 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.39 <= 6.18.* | unaffected |
| Linux | Linux | 7.1.4 <= 7.1.* | unaffected |
| Linux | Linux | 7.2-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/100fb7c455fa86d248b8bd7bb9de757c192870b4
- https://git.kernel.org/stable/c/3c81dda84799f76b42aec598564316e2964440db
- https://git.kernel.org/stable/c/f1add4acb656f5a82806a1ab0e63fed3d8b1bfca
- https://git.kernel.org/stable/c/89234773e8348918111aa15f6922b58cf3843364
- https://git.kernel.org/stable/c/2a88561d66eb855813cf004a0abe648bbb17de5e
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