GHSA-9C8V-C8P9-2PJH
Vulnerability from github – Published: 2024-07-16 15:30 – Updated: 2024-07-23 15:31In 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
{
"affected": [],
"aliases": [
"CVE-2022-48861"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-16T13:15:13Z",
"severity": "MODERATE"
},
"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",
"id": "GHSA-9c8v-c8p9-2pjh",
"modified": "2024-07-23T15:31:08Z",
"published": "2024-07-16T15:30:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48861"
},
{
"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"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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