CVE-2026-64387
critical · 9.8In the Linux kernel, the following vulnerability has been resolved: smb: client: fix query directory replay double-free A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_query_directory_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/00b0fa425941438b664950a8ee65dfba2def4336
- https://git.kernel.org/stable/c/1665f25b1dea30bf2d02e16245d203a944c9d994
- https://git.kernel.org/stable/c/3317a5d015fca976475aa71df224056777316fde
- https://git.kernel.org/stable/c/3409aedf3c81a810243da94164f6621c9d205c98
- https://git.kernel.org/stable/c/9647492b5e41954be59d5157eddbcd4cdc1656f7
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-64387