{"id":"CVE-2022-48861","summary":"vdpa: fix use-after-free on vp_vdpa_remove","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa: fix use-after-free on vp_vdpa_remove\n\nWhen vp_vdpa driver is unbind, vp_vdpa is freed in vdpa_unregister_device\nand then vp_vdpa-\u003emdev.pci_dev is dereferenced in vp_modern_remove,\ntriggering use-after-free.\n\nCall Trace of unbinding driver free vp_vdpa :\ndo_syscall_64\n  vfs_write\n    kernfs_fop_write_iter\n      device_release_driver_internal\n        pci_device_remove\n          vp_vdpa_remove\n            vdpa_unregister_device\n              kobject_release\n                device_release\n                  kfree\n\nCall Trace of dereference vp_vdpa-\u003emdev.pci_dev:\nvp_modern_remove\n  pci_release_selected_regions\n    pci_release_region\n      pci_resource_len\n        pci_resource_end\n          (dev)-\u003eresource[(bar)].end","modified":"2026-04-02T08:27:05.367577Z","published":"2024-07-16T12:25:25.160Z","related":["SUSE-SU-2024:2894-1","SUSE-SU-2024:2902-1","SUSE-SU-2024:2929-1","SUSE-SU-2024:2939-1","SUSE-SU-2024:2947-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48861.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/4b1743bc715a3691a63ac21b349079b07bf1b19e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dc54ba9932aeaaa1a21fe214af1f446593a78274"},{"type":"WEB","url":"https://git.kernel.org/stable/c/eb057b44dbe35ae14527830236a92f51de8f9184"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48861.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-48861"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"64b9f64f80a6f4b7ea51bf0510119cb15e801dc6"},{"fixed":"4b1743bc715a3691a63ac21b349079b07bf1b19e"},{"fixed":"dc54ba9932aeaaa1a21fe214af1f446593a78274"},{"fixed":"eb057b44dbe35ae14527830236a92f51de8f9184"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48861.json"}}],"schema_version":"1.7.5"}