# CVE-2023-53358: linux: In the Linux kernel, the following vulnerability has been resolved:  ksmbd: fix racy issue under cocurrent smb2 tree...

CVE-2023-53358 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-53358, released September 17, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-53358
- Priority: High
- CVSS: 7.0 (high)
- EPSS: 0.0038
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 17, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  ksmbd: fix racy issue under cocurrent smb2 tree disconnect  There is UAF issue under cocurrent smb2 tree disconnect. This patch introduce TREE_CONN_EXPIRE flags for tcon to avoid cocurrent access.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.37-1 | [DEBIAN-CVE-2023-53358](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53358.md) | Sep 17, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.3.7-1 | [DEBIAN-CVE-2023-53358](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53358.md) | Sep 17, 2025 |
| Linux | linux Debian 14 | 6.3.7-1 | [DEBIAN-CVE-2023-53358](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53358.md) | Sep 17, 2025 |

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