# CVE-2022-48748: linux: In the Linux kernel, the following vulnerability has been resolved:  net: bridge: vlan: fix memory leak in __allowed_...

CVE-2022-48748 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-48748, released June 20, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-48748
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0113
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 20, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  net: bridge: vlan: fix memory leak in __allowed_ingress  When using per-vlan state, if vlan snooping and stats are disabled, untagged or priority-tagged ingress frame will go to check pvid state. If the port state is forwarding and the pvid state is not learning/forwarding, untagged or priority-tagged frame will be dropped but skb memory is not freed. Should free skb when __allowed_ingress returns false.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.16.7-1 | [DEBIAN-CVE-2022-48748](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48748.md) | Jun 20, 2024 |
| Linux | linux Debian 13.5 (trixie) | 5.16.7-1 | [DEBIAN-CVE-2022-48748](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48748.md) | Jun 20, 2024 |
| Linux | linux Debian 14 | 5.16.7-1 | [DEBIAN-CVE-2022-48748](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48748.md) | Jun 20, 2024 |

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Data as of 2026-11-08T00:53:09Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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