CVE-2022-48630
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.
How to fix
- linux linux_kernel4.19.245, 5.4.196, 5.10.118, 5.15.42, 5.17.10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.19.236 ≤ v < 4.19.245, 5.4.187 ≤ v < 5.4.196, 5.10.108 ≤ v < 5.10.118, 5.15.31 ≤ v < 5.15.42, 5.17 ≤ v < 5.17.10, 5.18 | 4.19.245, 5.4.196, 5.10.118, 5.15.42, 5.17.10 |
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