CVE-2026-64382
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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_open() replay
A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_open_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 < 02bc2896bdc3e29362d6e40d404006944a159c25 | affected |
| Linux | Linux | 4f1fffa2376922f3d1d506e49c0fd445b023a28e < 3196b5192f246df4272072f61a2f4a3e9967f55d | affected |
| Linux | Linux | 4f1fffa2376922f3d1d506e49c0fd445b023a28e < 14498ff5ce0f272ce0ef988721413e06b7038972 | affected |
| Linux | Linux | 4f1fffa2376922f3d1d506e49c0fd445b023a28e < ff2d30927bc3bf3c629f0768d2068096e64ef5ce | affected |
| Linux | Linux | 4f1fffa2376922f3d1d506e49c0fd445b023a28e < b55e182f2324bc6a604c21a47aa6c448f719a532 | 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/02bc2896bdc3e29362d6e40d404006944a159c25
- https://git.kernel.org/stable/c/3196b5192f246df4272072f61a2f4a3e9967f55d
- https://git.kernel.org/stable/c/14498ff5ce0f272ce0ef988721413e06b7038972
- https://git.kernel.org/stable/c/ff2d30927bc3bf3c629f0768d2068096e64ef5ce
- https://git.kernel.org/stable/c/b55e182f2324bc6a604c21a47aa6c448f719a532
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