# CVE-2022-48861: linux: In the Linux kernel, the following vulnerability has been resolved:  vdpa: fix use-after-free on vp_vdpa_remove  When...

CVE-2022-48861 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-48861, released July 16, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-48861
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0020
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 16, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  vdpa: fix use-after-free on vp_vdpa_remove  When vp_vdpa driver is unbind, vp_vdpa is freed in vdpa_unregister_device and then vp_vdpa->mdev.pci_dev is dereferenced in vp_modern_remove, triggering use-after-free.  Call Trace of unbinding driver free vp_vdpa : do_syscall_64   vfs_write     kernfs_fop_write_iter       device_release_driver_internal         pci_device_remove           vp_vdpa_remove             vdpa_unregister_device               kobject_release                 device_release                   kfree  Call Trace of dereference vp_vdpa->mdev.pci_dev: vp_modern_remove   pci_release_selected_regions     pci_release_region       pci_resource_len         pci_resource_end           (dev)->resource[(bar)].end

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.16.18-1 | [DEBIAN-CVE-2022-48861](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48861.md) | Jul 16, 2024 |
| Linux | linux Debian 13.5 (trixie) | 5.16.18-1 | [DEBIAN-CVE-2022-48861](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48861.md) | Jul 16, 2024 |
| Linux | linux Debian 14 | 5.16.18-1 | [DEBIAN-CVE-2022-48861](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48861.md) | Jul 16, 2024 |

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