阿里云漏洞库

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

建议您更新当前系统或软件至最新版，完成漏洞的修复。

参考链接
https://access.redhat.com/security/cve/CVE-2022-48861
https://git.kernel.org/stable/c/4b1743bc715a3691a63ac21b349079b07bf1b19e
https://git.kernel.org/stable/c/dc54ba9932aeaaa1a21fe214af1f446593a78274
https://git.kernel.org/stable/c/eb057b44dbe35ae14527830236a92f51de8f9184
https://lore.kernel.org/linux-cve-announce/2024071628-CVE-2022-48861-440e@gregkh/T

CWE-ID	漏洞类型
CWE-416	释放后使用