CVE-2026-64386
critical · 9.8In 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.
9.8
CVSS
0.5%
EPSS (exploit prob.)
39th
EPSS percentile
2026-07-25
Published
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-415
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| linux | linux_kernel | >= 6.6.32, < 6.6.145 |
| linux | linux_kernel | >= 6.8.1, < 6.12.96 |
| linux | linux_kernel | >= 6.13, < 6.18.39 |
| linux | linux_kernel | >= 6.19, < 7.1.4 |
| linux | linux_kernel | 6.8 |
| linux | linux_kernel | 6.8 |
| linux | linux_kernel | 6.8 |
| linux | linux_kernel | 6.8 |
| linux | linux_kernel | 6.8 |
| linux | linux_kernel | 6.8 |
| linux | linux_kernel | 6.8 |
Check a specific version with /api/v1/cve/match.
References
- https://git.kernel.org/stable/c/100fb7c455fa86d248b8bd7bb9de757c192870b4
- https://git.kernel.org/stable/c/2a88561d66eb855813cf004a0abe648bbb17de5e
- https://git.kernel.org/stable/c/3c81dda84799f76b42aec598564316e2964440db
- https://git.kernel.org/stable/c/89234773e8348918111aa15f6922b58cf3843364
- https://git.kernel.org/stable/c/f1add4acb656f5a82806a1ab0e63fed3d8b1bfca
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-64386