# CVE-2022-48724: linux: In the Linux kernel, the following vulnerability has been resolved:  iommu/vt-d: Fix potential memory leak in intel_s...

CVE-2022-48724 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-48724, released June 20, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-48724
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0024
- 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:  iommu/vt-d: Fix potential memory leak in intel_setup_irq_remapping()  After commit e3beca48a45b ("irqdomain/treewide: Keep firmware node unconditionally allocated"). For tear down scenario, fn is only freed after fail to allocate ir_domain, though it also should be freed in case dmar_enable_qi returns error.  Besides free fn, irq_domain and ir_msi_domain need to be removed as well if intel_setup_irq_remapping fails to enable queued invalidation.  Improve the rewinding path by add out_free_ir_domain and out_free_fwnode lables per Baolu's suggestion.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.16.10-1 | [DEBIAN-CVE-2022-48724](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48724.md) | Jun 20, 2024 |
| Linux | linux Debian 13.5 (trixie) | 5.16.10-1 | [DEBIAN-CVE-2022-48724](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48724.md) | Jun 20, 2024 |
| Linux | linux Debian 14 | 5.16.10-1 | [DEBIAN-CVE-2022-48724](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48724.md) | Jun 20, 2024 |

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