cbcvebase.
CVE-2021-47596
published 2024-06-19

CVE-2021-47596: In the Linux kernel, the following vulnerability has been resolved: net: hns3: fix use-after-free bug in hclgevf_send_mbx_msg Currently, the hns3_remove…

PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.25%
16.3th percentile
In the Linux kernel, the following vulnerability has been resolved: net: hns3: fix use-after-free bug in hclgevf_send_mbx_msg Currently, the hns3_remove function firstly uninstall client instance, and then uninstall acceletion engine device. The netdevice is freed in client instance uninstall process, but acceletion engine device uninstall process still use it to trace runtime information. This causes a use after free problem. So fixes it by check the instance register state to avoid use after free.

Affected

11 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 5.15.15-1 (bookworm)linux 5.15.15-1 (bookworm)
linuxlinux——
linuxlinux>= d8355240cf8fb8b9e002b5c8458578435cea85c2 < 12512bc8f25b8ba9795dfbae0e9ca57ff13fd54212512bc8f25b8ba9795dfbae0e9ca57ff13fd542
linuxlinux>= d8355240cf8fb8b9e002b5c8458578435cea85c2 < 4f4a353f6fe033807cd026a5de81c67469ff19b04f4a353f6fe033807cd026a5de81c67469ff19b0
linuxlinux>= d8355240cf8fb8b9e002b5c8458578435cea85c2 < 27cbf64a766e86f068ce6214f04c00ceb4db1af427cbf64a766e86f068ce6214f04c00ceb4db1af4
linuxlinux_kernel>= 0 < 5.10.92-15.10.92-1
linuxlinux_kernel>= 0 < 5.15.15-15.15.15-1
linuxlinux_kernel>= 0 < 5.15.15-15.15.15-1
linuxlinux_kernel>= 0 < 5.15.15-15.15.15-1
linuxlinux_kernel>= 5.11 < 5.15.115.15.11
linuxlinux_kernel>= 5.8 < 5.10.885.10.88

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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