5.5

CVE-2022-48663

gpio: mockup: fix NULL pointer dereference when removing debugfs

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

gpio: mockup: fix NULL pointer dereference when removing debugfs

We now remove the device's debugfs entries when unbinding the driver.
This now causes a NULL-pointer dereference on module exit because the
platform devices are unregistered *after* the global debugfs directory
has been recursively removed. Fix it by unregistering the devices first.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.10.144 < 5.10.146
Linux ≫ Linux Kernel Version >= 5.15.69 < 5.15.71
Linux ≫ Linux Kernel Version >= 5.19.10 < 5.19.12
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.13
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/18352095a0d581f6aeb1e9fc9d68cc0152cd64b4
Patch
https://git.kernel.org/stable/c/af0bfabf06c74c260265c30ba81a34e7dec0e881
Patch
https://git.kernel.org/stable/c/b7df41a6f79dfb18ba2203f8c5f0e9c0b9b57f68
Patch
https://git.kernel.org/stable/c/bdea98b98f844bd8a983ca880893e509a8b4162f
Patch