# CVE-2023-54280: linux: In the Linux kernel, the following vulnerability has been resolved:  cifs: fix potential race when tree connecting ip...

CVE-2023-54280 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-54280, released December 30, 2025. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2023-54280
- Priority: Urgent
- CVSS: 9.8 (critical)
- EPSS: 0.0052
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 30, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  cifs: fix potential race when tree connecting ipc  Protect access of TCP_Server_Info::hostname when building the ipc tree name as it might get freed in cifsd thread and thus causing an use-after-free bug in __tree_connect_dfs_target().  Also, while at it, update status of IPC tcon on success and then avoid any extra tree connects.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.3.7-1 | [DEBIAN-CVE-2023-54280](https://patchblox.com/security/data/fix/linux/debian-cve-2023-54280.md) | Dec 30, 2025 |
| Linux | linux Debian 14 | 6.3.7-1 | [DEBIAN-CVE-2023-54280](https://patchblox.com/security/data/fix/linux/debian-cve-2023-54280.md) | Dec 30, 2025 |

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Data as of 2026-11-09T13:31:49Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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