# CVE-2023-52502: linux: In the Linux kernel, the following vulnerability has been resolved:  net: nfc: fix races in nfc_llcp_sock_get() and n...

CVE-2023-52502 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-52502, released March 2, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-52502
- Priority: High
- CVSS: 8.8 (high)
- EPSS: 0.0025
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 2, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn()  Sili Luo reported a race in nfc_llcp_sock_get(), leading to UAF.  Getting a reference on the socket found in a lookup while holding a lock should happen before releasing the lock.  nfc_llcp_sock_get_sn() has a similar problem.  Finally nfc_llcp_recv_snl() needs to make sure the socket found by nfc_llcp_sock_from_sn() does not disappear.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.64-1 | [DEBIAN-CVE-2023-52502](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52502.md) | Mar 2, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.5.8-1 | [DEBIAN-CVE-2023-52502](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52502.md) | Mar 2, 2024 |
| Linux | linux Debian 14 | 6.5.8-1 | [DEBIAN-CVE-2023-52502](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52502.md) | Mar 2, 2024 |

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