CVE-2026-64385
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 double-free in SMB2_ioctl() replay
A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_ioctl_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 < 0be4bc64882edaefaaee8d1e27d083643eb778e6 | affected |
| Linux | Linux | 4f1fffa2376922f3d1d506e49c0fd445b023a28e < 96fcfc8ae7359346156e492ca610e830d2649ad6 | affected |
| Linux | Linux | 4f1fffa2376922f3d1d506e49c0fd445b023a28e < 276c8efbc49f9303ac76d0d4deab7128581b0f3b | affected |
| Linux | Linux | 4f1fffa2376922f3d1d506e49c0fd445b023a28e < fc65ffb4ef1bf540da16b17c225ae51091e07d72 | affected |
| Linux | Linux | 4f1fffa2376922f3d1d506e49c0fd445b023a28e < f9bbadb6c94583e3b4af1afc449bfceb1d1ddec9 | 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/0be4bc64882edaefaaee8d1e27d083643eb778e6
- https://git.kernel.org/stable/c/96fcfc8ae7359346156e492ca610e830d2649ad6
- https://git.kernel.org/stable/c/276c8efbc49f9303ac76d0d4deab7128581b0f3b
- https://git.kernel.org/stable/c/fc65ffb4ef1bf540da16b17c225ae51091e07d72
- https://git.kernel.org/stable/c/f9bbadb6c94583e3b4af1afc449bfceb1d1ddec9
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