NetSight
IP …
medium5.5

CVE-2022-48630

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 referen…

Impact

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.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 4.19.236 before 4.19.245
from 5.4.187 before 5.4.196
from 5.10.108 before 5.10.118
from 5.15.31 before 5.15.42
from 5.17 before 5.17.10
Version 5.18

Weakness classification

CWE-835

References