CVE-2022-50087: high-severity vulnerability in Linux
firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails
Published · Updated
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.2%
exploitation probability
0.2%top 91% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxRelated CVEs — Linux
In the same product, most dangerous first.
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References
https://git.kernel.org/stable/c/08272646cd7c310642c39b7f54348fddd7987643https://git.kernel.org/stable/c/0c29e149b6bb498778ed8a1c9597b51acfba7856https://git.kernel.org/stable/c/18048cba444a7c41dbf42c180d6b46606fc24c51https://git.kernel.org/stable/c/4f2d7b46d6b53c07f44a4f8f8f4438888f0e9e87https://git.kernel.org/stable/c/5aa558232edc30468d1f35108826dd5b3ffe978fhttps://git.kernel.org/stable/c/689640efc0a2c4e07e6f88affe6d42cd40cc3f85https://git.kernel.org/stable/c/87c4896d5dd7fd9927c814cf3c6289f41de3b562