7.8

CVE-2022-50087

firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails

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

firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails

When scpi probe fails, at any point, we need to ensure that the scpi_info
is not set and will remain NULL until the probe succeeds. If it is not
taken care, then it could result use-after-free as the value is exported
via get_scpi_ops() and could refer to a memory allocated via devm_kzalloc()
but freed when the probe fails.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.4 < 4.19.256
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.211
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.137
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.61
Linux ≫ Linux Kernel Version >= 5.16 < 5.18.18
Linux ≫ Linux Kernel Version >= 5.19 < 5.19.2
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.06
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 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-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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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/5aa558232edc30468d1f35108826dd5b3ffe978f
Patch
https://git.kernel.org/stable/c/18048cba444a7c41dbf42c180d6b46606fc24c51
Patch
https://git.kernel.org/stable/c/08272646cd7c310642c39b7f54348fddd7987643
Patch
https://git.kernel.org/stable/c/0c29e149b6bb498778ed8a1c9597b51acfba7856
Patch
https://git.kernel.org/stable/c/87c4896d5dd7fd9927c814cf3c6289f41de3b562
Patch
https://git.kernel.org/stable/c/4f2d7b46d6b53c07f44a4f8f8f4438888f0e9e87
Patch
https://git.kernel.org/stable/c/689640efc0a2c4e07e6f88affe6d42cd40cc3f85
Patch