7.8

CVE-2023-52795

vhost-vdpa: fix use after free in vhost_vdpa_probe()

In the Linux kernel, the following vulnerability has been resolved:

vhost-vdpa: fix use after free in vhost_vdpa_probe()

The put_device() calls vhost_vdpa_release_dev() which calls
ida_simple_remove() and frees "v".  So this call to
ida_simple_remove() is a use after free and a double free.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.0 < 6.1.64
Linux ≫ Linux Kernel Version >= 6.2 < 6.5.13
Linux ≫ Linux Kernel Version >= 6.6 < 6.6.3
Linux ≫ Linux Kernel Version6.7 Updaterc1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.15
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-415 Double Free

The product calls free() twice on the same memory address.

CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/ae8ea4e200675a940c365b496ef8e3fb4123601c
Patch
https://git.kernel.org/stable/c/bf04132cd64ccde4e9e9765d489c83fe83c09b7f
Patch
https://git.kernel.org/stable/c/c0f8b8fb7df9d1a38652eb5aa817afccd3c56111
Patch
https://git.kernel.org/stable/c/e07754e0a1ea2d63fb29574253d1fd7405607343
Patch