Bug 1220750 (CVE-2021-47067) - VUL-0: CVE-2021-47067: kernel: soc/tegra: regulators: lockup when voltage-spread is out of range
Summary: VUL-0: CVE-2021-47067: kernel: soc/tegra: regulators: lockup when voltage-spr...
Status: RESOLVED FIXED
Alias: CVE-2021-47067
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P5 - None : Normal
Target Milestone: ---
Assignee: Kernel Bugs
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/395878/
Whiteboard: CVSSv3.1:SUSE:CVE-2021-47067:4.3:(AV:...
Keywords:
Depends on:
Blocks:
 
Reported: 2024-03-01 10:14 UTC by SMASH SMASH
Modified: 2024-03-01 10:14 UTC (History)
1 user (show)

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Found By: Security Response Team
Services Priority:
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Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description SMASH SMASH 2024-03-01 10:14:02 UTC 
In the Linux kernel, the following vulnerability has been resolved:

soc/tegra: regulators: Fix locking up when voltage-spread is out of range

Fix voltage coupler lockup which happens when voltage-spread is out
of range due to a bug in the code. The max-spread requirement shall be
accounted when CPU regulator doesn't have consumers. This problem is
observed on Tegra30 Ouya game console once system-wide DVFS is enabled
in a device-tree.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47067
https://www.cve.org/CVERecord?id=CVE-2021-47067
https://git.kernel.org/stable/c/a1ad124c836816fac8bd5e461d36eaf33cee4e24
https://git.kernel.org/stable/c/dc4452867200fa94589b382740952b58aa1c3e6c
https://git.kernel.org/stable/c/ef85bb582c41524e9e68dfdbde48e519dac4ab3d
https://git.kernel.org/stable/c/ff39adf5d31c72025bba799aec69c5c86d81d549
https://bugzilla.redhat.com/show_bug.cgi?id=2267192
Comment 1 Carlos López 2024-03-01 10:14:47 UTC 
Already fixed in cve/linux-5.14 and newer. Older branches are not affected. Closing.