cbcvebase.
CVE-2021-47058
published 2024-02-29

CVE-2021-47058: In the Linux kernel, the following vulnerability has been resolved: regmap: set debugfs_name to NULL after it is freed There is a upstream commit…

PriorityP336high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.25%
15.9th percentile
In the Linux kernel, the following vulnerability has been resolved: regmap: set debugfs_name to NULL after it is freed There is a upstream commit cffa4b2122f5("regmap:debugfs: Fix a memory leak when calling regmap_attach_dev") that adds a if condition when create name for debugfs_name. With below function invoking logical, debugfs_name is freed in regmap_debugfs_exit(), but it is not created again because of the if condition introduced by above commit. regmap_reinit_cache() regmap_debugfs_exit() ... regmap_debugfs_init() So, set debugfs_name to NULL after it is freed.

Affected

20 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 5.10.38-1 (bookworm)linux 5.10.38-1 (bookworm)
linuxlinux——
linuxlinux>= 4.19.168 < 4.19.1914.19.191
linuxlinux>= 480c5e9c7e4c76c01d5f1f7b73832d7b77e6b427 < d8897f7b2283a500666c85ef06e820df38ed7b52d8897f7b2283a500666c85ef06e820df38ed7b52
linuxlinux>= 5.10.8 < 5.10.375.10.37
linuxlinux>= 5.4.90 < 5.4.1195.4.119
linuxlinux>= 5b654b03007917f3f1015b2a5c288c1ea6ae8f65 < 2dc1554d5f0fdaf47cc5bea442b84b9226fea8672dc1554d5f0fdaf47cc5bea442b84b9226fea867
linuxlinux>= c9698380b01aed3281160d3ab25749b57d6913b8 < eb949f891226c012138ffd9df90d1e509f428ae6eb949f891226c012138ffd9df90d1e509f428ae6
linuxlinux>= cffa4b2122f5f3e53cf3d529bbc74651f95856d5 < c764e375ae647832de1ee73d43a4bb3ef8a8f43dc764e375ae647832de1ee73d43a4bb3ef8a8f43d
linuxlinux>= cffa4b2122f5f3e53cf3d529bbc74651f95856d5 < b9e569ae1da3a113b3acee8703c94777fd20938ab9e569ae1da3a113b3acee8703c94777fd20938a
linuxlinux>= cffa4b2122f5f3e53cf3d529bbc74651f95856d5 < e41a962f82e7afb5b1ee644f48ad0b3aee656268e41a962f82e7afb5b1ee644f48ad0b3aee656268
linuxlinux_kernel>= 0 < 5.10.38-15.10.38-1
linuxlinux_kernel>= 0 < 5.10.38-15.10.38-1
linuxlinux_kernel>= 0 < 5.10.38-15.10.38-1
linuxlinux_kernel>= 0 < 5.10.38-15.10.38-1
linuxlinux_kernel>= 4.19.168 < 4.19.1914.19.191
linuxlinux_kernel>= 5.10.8 < 5.10.375.10.37
linuxlinux_kernel>= 5.11 < 5.11.215.11.21
linuxlinux_kernel>= 5.12 < 5.12.45.12.4
linuxlinux_kernel>= 5.4.90 < 5.4.1195.4.119

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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