{"id":"CVE-2022-48861","state":"PUBLISHED","title":"vdpa: fix use-after-free on vp_vdpa_remove","description":"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->mdev.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->mdev.pci_dev:\nvp_modern_remove\n  pci_release_selected_regions\n    pci_release_region\n      pci_resource_len\n        pci_resource_end\n          (dev)->resource[(bar)].end","publishedAt":"2024-07-16T12:25:25.160Z","updatedAt":"2026-05-11T18:48:34.534Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"64b9f64f80a6f4b7ea51bf0510119cb15e801dc6","status":"affected","lessThan":"4b1743bc715a3691a63ac21b349079b07bf1b19e","versionType":"git"},{"version":"64b9f64f80a6f4b7ea51bf0510119cb15e801dc6","status":"affected","lessThan":"dc54ba9932aeaaa1a21fe214af1f446593a78274","versionType":"git"},{"version":"64b9f64f80a6f4b7ea51bf0510119cb15e801dc6","status":"affected","lessThan":"eb057b44dbe35ae14527830236a92f51de8f9184","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/vdpa/virtio_pci/vp_vdpa.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.13","versionType":"semver"},{"version":"5.15.29","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16.15","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/vdpa/virtio_pci/vp_vdpa.c"]}],"references":["https://git.kernel.org/stable/c/4b1743bc715a3691a63ac21b349079b07bf1b19e","https://git.kernel.org/stable/c/dc54ba9932aeaaa1a21fe214af1f446593a78274","https://git.kernel.org/stable/c/eb057b44dbe35ae14527830236a92f51de8f9184"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/48xxx/CVE-2022-48861.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-48861","state":"PUBLISHED","datePublished":"2024-07-16T12:25:25.160Z","dateUpdated":"2026-05-11T18:48:34.534Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-07-16T11:38:08.920Z"},"containers":{"cna":{"title":"vdpa: fix use-after-free on vp_vdpa_remove","descriptions":[{"lang":"en","value":"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->mdev.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->mdev.pci_dev:\nvp_modern_remove\n  pci_release_selected_regions\n    pci_release_region\n      pci_resource_len\n        pci_resource_end\n          (dev)->resource[(bar)].end"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"64b9f64f80a6f4b7ea51bf0510119cb15e801dc6","status":"affected","lessThan":"4b1743bc715a3691a63ac21b349079b07bf1b19e","versionType":"git"},{"version":"64b9f64f80a6f4b7ea51bf0510119cb15e801dc6","status":"affected","lessThan":"dc54ba9932aeaaa1a21fe214af1f446593a78274","versionType":"git"},{"version":"64b9f64f80a6f4b7ea51bf0510119cb15e801dc6","status":"affected","lessThan":"eb057b44dbe35ae14527830236a92f51de8f9184","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/vdpa/virtio_pci/vp_vdpa.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.13","versionType":"semver"},{"version":"5.15.29","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16.15","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/vdpa/virtio_pci/vp_vdpa.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/4b1743bc715a3691a63ac21b349079b07bf1b19e"},{"url":"https://git.kernel.org/stable/c/dc54ba9932aeaaa1a21fe214af1f446593a78274"},{"url":"https://git.kernel.org/stable/c/eb057b44dbe35ae14527830236a92f51de8f9184"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T18:48:34.534Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"5.15.29"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"5.16.15"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"5.17"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE 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