CVE-2026-64384
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 change notify replay double-free
A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_notify_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 < 5821f9dbb8b5b24391850a13418e633edd0fb003 | affected |
| Linux | Linux | 4f1fffa2376922f3d1d506e49c0fd445b023a28e < d684f4134998085702009b94c35c2003fc9e72d3 | affected |
| Linux | Linux | 4f1fffa2376922f3d1d506e49c0fd445b023a28e < 52af1975f0dfae990c5a0e85872cc41be0e88a68 | affected |
| Linux | Linux | 4f1fffa2376922f3d1d506e49c0fd445b023a28e < 901891513951bc8322ece754863909ea45af95c6 | affected |
| Linux | Linux | 4f1fffa2376922f3d1d506e49c0fd445b023a28e < 145f820dcbb2cced374f2532f8a61a44dce4a615 | 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/5821f9dbb8b5b24391850a13418e633edd0fb003
- https://git.kernel.org/stable/c/d684f4134998085702009b94c35c2003fc9e72d3
- https://git.kernel.org/stable/c/52af1975f0dfae990c5a0e85872cc41be0e88a68
- https://git.kernel.org/stable/c/901891513951bc8322ece754863909ea45af95c6
- https://git.kernel.org/stable/c/145f820dcbb2cced374f2532f8a61a44dce4a615
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