CVE-2024-46675
MediumIn the Linux kernel, the following vulnerability has been resolved: usb: dwc3: core: Prevent USB core invalid event buffer address access This commit addresses an issue where the USB core could access an invalid event buffer address during runtime suspend, potentially causing SMMU faults and other memory issues in Exynos platforms. The problem arises from the following sequence. 1. In dwc3_gadget_suspend, there is a chance of a timeout when moving the USB core to the halt state after clearing the run/stop bit by software. 2. In dwc3_core_exit, the event buffer is cleared regardless of the USB core's status, which may lead to an SMMU faults and other memory issues. if the USB core tries to access the event buffer address. To prevent this hardware quirk on Exynos platforms, this commit ensures that the event buffer address is not cleared by software when the USB core is active during runtime suspend by checking its status before clearing the buffer address.
CVSS 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected versions
Linux kernel versions
4.8
and later are affected. Fixed in
4.19.321,
5.4.283,
5.10.225,
5.15.166,
6.1.108,
6.6.49,
6.10.8,
6.11
and their respective stable series.
References
The following references provide additional information about CVE-2024-46675 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/111277b881def3153335acfe0d1f43e6cd83ac93
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PatchKernel patch commithttps://git.kernel.org/stable/c/14e497183df28c006603cc67fd3797a537eef7b9
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PatchKernel patch commithttps://git.kernel.org/stable/c/2189fd13c577d7881f94affc09c950a795064c4b
Frequently asked questions
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What is CVE-2024-46675?
CVE-2024-46675 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.8 onward and has been patched in 4.19.321, 5.4.283, 5.10.225 and others. CVE-2024-46675 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2024-46675?
CVE-2024-46675 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2024-46675?
Yes — CVE-2024-46675 has been patched. Fixed versions include 4.19.321, 5.4.283, 5.10.225 and others. If you are running Linux kernel 4.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2024-46675 actively exploited?
No — CVE-2024-46675 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.