CVE-2022-48630 - CVE House
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Status published Medium CVE-2022-48630

crypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: crypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ The commit referenced in the Fixes tag removed the 'break' from the else branch in qcom_rng_read(), causing an infinite loop whenever 'max' is not a multiple of WORD_SZ. This can be reproduced e.g. by running: kcapi-rng -b 67 >/dev/null There are many ways to fix this without adding back the 'break', but they all seem more awkward than simply adding it back, so do just that. Tested on a machine with Qualcomm Amberwing processor.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
a8e32bbb96c25b7ab29b1894dcd45e0b3b08fd9d, 184f7bd08ce56f003530fc19f160d54e75bf5c9d, 0f9b7b8df17525e464294c916acc8194ce38446b, ab9337c7cb6f875b6286440b1adfbeeef2b2b2bd, a680b1832ced3b5fa7c93484248fd221ea0d614b, 485995cbc98a4f77cfd4f8ed4dd7ff8ab262964d, 4.19.236, 5.4.187, 5.10.108, 5.15.31, 5.16.17, 5.17, 0, 4.19.245, 5.4.196, 5.10.118, 5.15.42, 5.17.10, 5.18

Timeline

Official Publish: March 5th, 2024
Last Modified: May 23rd, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.